USER MANUAL
MODELS T703 and T703U
PHOTOMETRIC O3 CALIBRATOR
© TELEDYNE ADVANCED POLLUTION INSTRUMENTATION (TAPI)
9480 CARROLL PARK DRIVE
SAN DIEGO, CALIFORNIA 92121-5201
USA
Toll-free Phone: 800-324-5190
Phone: 858-657-9800
Fax: 858-657-9816
Email: [email protected]
Website: http://www.teledyne-api.com/
Copyright 2010-2012
Teledyne Advanced Pollution Instrumentation
07223C DCN 6572
21 December 2012
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ABOUT TELEDYNE ADVANCED POLLUTION INSTRUMENTATION (TAPI)
Teledyne Advanced Pollution Instrumentation (TAPI), a business unit of Teledyne Instruments, Inc., is a
worldwide market leader in the design and manufacture of precision analytical instrumentation used for air
quality monitoring, continuous emissions monitoring, and specialty process monitoring applications. Founded
in San Diego, California, in 1988, TAPI introduced a complete line of Air Quality Monitoring (AQM)
instrumentation, which comply with the United States Environmental Protection Administration (EPA) and
international requirements for the measurement of criteria pollutants, including CO, SO2, NOx and Ozone.
Since 1988 TAPI has combined state-of-the-art technology, proven measuring principles, stringent quality
assurance systems and world class after-sales support to deliver the best products and customer satisfaction in
the business.
For further information on our company, our complete range of products, and the applications that they serve,
NOTICE OF COPYRIGHT
© 2010-2012 Teledyne Advanced Pollution Instrumentation, Inc. All rights reserved.
TRADEMARKS
All trademarks, registered trademarks, brand names or product names appearing in this document are the
property of their respective owners and are used herein for identification purposes only.
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Table of Contents
SAFETY MESSAGES
Important safety messages are provided throughout this manual for the purpose of avoiding personal injury or
instrument damage. Please read these messages carefully. Each safety message is associated with a safety
alert symbol, and are placed throughout this manual and inside the instrument. The symbols with messages are
defined as follows:
WARNING: Electrical Shock Hazard
HAZARD: Strong oxidizer
GENERAL WARNING/CAUTION: Read the accompanying message for
specific information.
CAUTION: Hot Surface Warning
Do Not Touch: Touching some parts of the instrument without
protection or proper tools could result in damage to the part(s) and/or the
instrument.
Technician Symbol: All operations marked with this symbol are to be
performed by qualified maintenance personnel only.
Electrical Ground: This symbol inside the instrument marks the central
safety grounding point for the instrument.
CAUTION
This instrument should only be used for the purpose and in the manner
described in this manual. If you use this instrument in a manner other than
that for which it was intended, unpredictable behavior could ensue with
possible hazardous consequences.
NEVER use a gas analyzer to sample any combustible gas(es)!
Note
Technical Assistance regarding the use and maintenance of this instrument or any other
Teledyne API product can be obtained by contacting Teledyne API’s Technical Support
Department:
Telephone: 800-324-5190
Email: [email protected]
or by accessing various service options on our website at http://www.teledyne-api.com/
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CONSIGNES DE SÉCURITÉ
Des consignes de sécurité importantes sont fournies tout au long du présent manuel dans le but d’éviter des
blessures corporelles ou d’endommager les instruments. Veuillez lire attentivement ces consignes. Chaque
consigne de sécurité est représentée par un pictogramme d’alerte de sécurité; ces pictogrammes se retrouvent
dans ce manuel et à l’intérieur des instruments. Les symboles correspondent aux consignes suivantes :
AVERTISSEMENT : Risque de choc électrique
DANGER : Oxydant puissant
AVERTISSEMENT GÉNÉRAL
/
MISE EN GARDE : Lire la consigne
complémentaire pour des renseignements spécifiques
MISE EN GARDE : Surface chaude
Ne pas toucher : Toucher à certaines parties de l’instrument sans protection ou
sans les outils appropriés pourrait entraîner des dommages aux pièces ou à
l’instrument.
Pictogramme « technicien » : Toutes les opérations portant ce symbole doivent
être effectuées uniquement par du personnel de maintenance qualifié.
Mise à la terre : Ce symbole à l’intérieur de l’instrument détermine le point central
de la mise à la terre sécuritaire de l’instrument.
MISE EN GARDE
Cet instrument doit être utilisé aux fins décrites et de la manière décrite dans
ce manuel. Si vous utilisez cet instrument d’une autre manière que celle pour
laquelle il a été prévu, l’instrument pourrait se comporter de façon imprévisible
et entraîner des conséquences dangereuses.
NE JAMAIS utiliser un analyseur de gaz pour échantillonner des gaz
combustibles!
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WARRANTY
WARRANTY POLICY (02024F)
Teledyne Advanced Pollution Instrumentation (TAPI), a business unit of Teledyne
Instruments, Inc., provides that:
Prior to shipment, TAPI equipment is thoroughly inspected and tested. Should equipment
failure occur, TAPI assures its customers that prompt service and support will be available.
COVERAGE
After the warranty period and throughout the equipment lifetime, TAPI stands ready to
provide on-site or in-plant service at reasonable rates similar to those of other manufacturers
in the industry. All maintenance and the first level of field troubleshooting are to be
performed by the customer.
NON-TAPI MANUFACTURED EQUIPMENT
Equipment provided but not manufactured by TAPI is warranted and will be repaired to the
extent and according to the current terms and conditions of the respective equipment
manufacturer’s warranty.
PRODUCT RETURN
All units or components returned to Teledyne API should be properly packed for
handling and returned freight prepaid to the nearest designated Service Center. After the
repair, the equipment will be returned, freight prepaid.
The complete Terms and Conditions of Sale can be reviewed at http://www.teledyne-
api.com/terms_and_conditions.asp
CAUTION – Avoid Warranty Invalidation
Failure to comply with proper anti-Electro-Static Discharge (ESD) handling and packing
instructions and Return Merchandise Authorization (RMA) procedures when returning parts for
repair or calibration may void your warranty. For anti-ESD handling and packing instructions
please refer to “Packing Components for Return to Teledyne API” in the Primer on Electro-Static
Discharge section of this manual, and for RMA procedures please refer to our Website at
http://www.teledyne-api.com under Customer Support > Return Authorization.
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ABOUT THIS MANUAL
Presented here is information regarding the documents that are included with this manual (Structure), its history
of release and revisions (Revision History), how the content is organized (Organization), and the conventions
used to present the information in this manual (Conventions Used).
STRUCTURE
This T703/T703U manual, PN 07223, is comprised of multiple documents, assembled in PDF format, as listed
below.
Part No.
07223
05745
07224
07747
05747
Rev Name/Description
C
E
A
A
D
T703 and T703U Photometric Calibrator Operation Manual (the main body of this manual)
Menu trees and software documentation (inserted as Appendix A of this manual)
T703 Spare Parts List (located in Appendix B of this manual)
T703U Spare Parts List (located in Appendix B of this manual)
Appendix C, Repair Questionnaire
Documents and Schematics included in Appendix D of this manual:
T703 Interconnect List
073600100
07360
04354
04420
04421
04422
04524
05803
06698
06882
06731
A
A
D
B
A
A
E
B
D
B
A
T703 Interconnect Diagram
SCH, PCA 04003, PRESS/FLOW
SCHEMATIC, UV DET PREAMP
SCHEMATIC, UV LAMP SUPPLY
SCHEMATIC, DC HEATER/THERMISTOR
SCHEMATIC, RELAY CARD
SCH, PCA 05802, MOTHERBOARD, GEN-5
SCH, PCA 06697, INTRFC, LCD TCH SCRN
SCH, LVDS TRANSMITTER BOARD
SCH, AUXILLIARY-I/O BOARD
Note
We recommend that this manual be read in its entirety before any attempt is made to operate the instrument.
ORGANIZATION
This manual is divided among three main parts and a collection of appendices at the end.
Part I contains introductory information that includes an overview of the instrument, descriptions of the
available options, specifications, installation and connection instructions, and the initial calibration and
functional checks.
Part II comprises the operating instructions, which include basic, advanced and remote operation, calibration,
diagnostics, testing, validating and verifying, and ends with specifics of calibrating for use in EPA monitoring.
Part III provides detailed technical information, such as theory of operation, maintenance, troubleshooting and
service along with Frequently Asked Questions (FAQs) and a glossary. It also contains a special section
dedicated to providing information about electro-static discharge and protecting against its consequences.
The appendices at the end of this manual provide support information such as, version-specific software
documentation, lists of spare parts, and schematics.
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REVISION HISTORY
This section provides information regarding the initial release and subsequent changes to this manual.
T703/T703U Operation Manual, 072230000
Date
Rev
C
DCN
6572
6378
5906
Change Summary
Added T703U technical specs and content
2012
2012 Feb 10
2010 Nov 12
B
Administrative changes
Initial Release
A
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TABLE OF CONTENTS
GENERAL INFORMATION..................................................................................................... 17
1. INTRODUCTION ................................................................................................................ 19
1.1. T703/T703U Calibrator Overview ................................................................................................................19
1.2. Options.........................................................................................................................................................20
2. SPECIFICATIONS AND APPROVALS.............................................................................. 21
2.1. Specifications...............................................................................................................................................21
2.2. Approvals and Certifications ........................................................................................................................22
2.2.1. Safety.....................................................................................................................................................22
2.2.2. EMC.......................................................................................................................................................22
2.2.3. Other Type Certifications.......................................................................................................................22
3. GETTING STARTED.......................................................................................................... 23
3.1. Unpacking and Initial Setup .........................................................................................................................23
3.1.1. Front, Rear, and Internal Calibrator Description....................................................................................24
3.2. Electrical Connections .................................................................................................................................32
3.2.1. Power Connection..................................................................................................................................32
3.2.2. Analog output Test Channel Connections.............................................................................................32
3.2.3. Connecting the Status Outputs..............................................................................................................33
3.2.4. Connecting the Control Inputs ...............................................................................................................34
3.2.5. Connecting the Control Outputs ............................................................................................................36
3.2.6. Communication Connections.................................................................................................................37
3.2.6.1. Ethernet Connection.......................................................................................................................37
3.2.6.2. USB Option Connection .................................................................................................................37
3.2.6.3. RS-232 and RS485 Connection.....................................................................................................37
3.2.6.4. Multidrop Network Connection .......................................................................................................37
3.3. Pnenumatic Connections.............................................................................................................................38
3.3.1. Dry Air In................................................................................................................................................38
3.3.2. Zero Air In ..............................................................................................................................................38
3.3.3. Output Manifold......................................................................................................................................39
3.3.4. Exhaust..................................................................................................................................................39
3.3.5. Measuring An External Ozone Source ..................................................................................................39
3.4. Initial Operation............................................................................................................................................39
3.4.1. Start-Up..................................................................................................................................................39
3.4.2. Warm Up................................................................................................................................................39
3.4.3. Warning Messages ................................................................................................................................40
3.4.4. Functional Check ...................................................................................................................................42
3.4.5. Operating Modes for the O3 Generator..................................................................................................43
3.4.5.1. CNST (CONSTANT).......................................................................................................................43
3.4.5.2. REF (REFERENCE).......................................................................................................................43
3.4.5.3. BNCH (BENCH) .............................................................................................................................43
3.4.6. Setting the O3 Generator Mode .............................................................................................................43
3.4.7. Setting the output Flow Rate .................................................................................................................44
3.4.7.1. Calculating Output Flow Rate.........................................................................................................44
3.4.7.2. Flow Setup for GPT........................................................................................................................44
OPERATING INSTRUCTIONS................................................................................................ 45
4. OPERATING THE CALIBRATOR...................................................................................... 47
4.1. Test Functions..............................................................................................................................................48
4.2. Overview of Operating modes .....................................................................................................................49
4.3. Standby Mode..............................................................................................................................................50
4.4. General Information about the GENERATE mode ......................................................................................51
4.4.1. GENERATE AUTO: Basic Generation of Calibration Gas................................................................51
4.5. Automatic Calibration Sequences................................................................................................................52
4.5.1. SETUP SEQ: Programming Calibration Sequences.........................................................................52
4.5.1.1. Activating a Sequence from the T703/T703U Front Panel.............................................................53
4.5.1.2. Naming a Sequence.......................................................................................................................54
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4.5.1.3. Setting the Repeat Count for a Sequence .....................................................................................55
4.5.1.4. Using the Internal Clock to Trigger Sequences.............................................................................56
4.5.1.5. Setting Up Control Inputs for a Sequence......................................................................................59
4.5.1.6. Setting Up Control Outputs for a Sequence...................................................................................60
4.5.1.7. Setting the Progress Reporting Mode for the Sequences..............................................................61
4.5.2. Adding Sequence Steps ........................................................................................................................62
4.5.2.1. The GENERATE Step ....................................................................................................................63
4.5.2.2. The STANDBY Step.......................................................................................................................64
4.5.2.3. The DURATION Step .....................................................................................................................64
4.5.2.4. The EXECSEQ Step.......................................................................................................................65
4.5.2.5. The CC OUTPUT Step...................................................................................................................66
4.5.2.6. Deleting or Editing an Individual Step in a Sequence ....................................................................67
4.5.3. Deleting a Sequence .............................................................................................................................68
4.6. SETUP CFG............................................................................................................................................69
4.7. SETUP CLK.............................................................................................................................................70
4.7.1. Setting the Internal Clock’s Time and Day ............................................................................................70
4.7.2. Adjusting the Internal Clock’s speed......................................................................................................71
4.8. SETUP PASS..........................................................................................................................................72
4.9. SETUP DIAG TEST CHAN OUTPUT: Using the TEST Channel Analog Output...............................74
4.9.1. Configuring the TEST Channel Analog Output......................................................................................74
4.9.1.1. The Analog I/O Configuration Submenu ........................................................................................74
4.9.1.2. Selecting a TEST Channel Function to Output ..............................................................................76
4.9.1.3. TEST Channel Voltage Range Configuration ................................................................................78
4.9.1.4. Turning the TEST Channel Over-Range Feature ON/OFF............................................................79
4.9.1.5. Adding a Recorder Offset to the TEST Channel............................................................................80
4.9.2. TEST Channel Calibration.....................................................................................................................81
4.9.2.1. Enabling or Disabling the TEST CHANNEL Auto-Cal Feature ......................................................82
4.9.2.2. Automatic TEST Channel Calibration.............................................................................................83
4.9.2.3. Manual Calibration of the TEST Channel Configured for Voltage Ranges....................................85
4.9.3. AIN Calibration.......................................................................................................................................87
4.10. SETUP MORE VARS: Internal Variables (VARS)............................................................................88
4.11. Operating the Calibrator as an O3 Photometer..........................................................................................90
4.11.1. Set up for Operation as an O3 Photometer..........................................................................................90
4.12. SETUP LVL: Setting up and using LEADS (Dasibi) Operating Levels .................................................92
4.12.1. General Information about LEADS LEVELS .......................................................................................92
4.12.2. Dot commands.....................................................................................................................................92
4.12.3. Levels...................................................................................................................................................93
4.12.4. Activating an existing LEVEL...............................................................................................................93
4.12.5. Programming New LEVELS ................................................................................................................94
4.12.5.1. Creating a Generate LEVEL.........................................................................................................95
4.12.5.2. Editing or Deleting a LEVEL.........................................................................................................96
4.12.6. Configuring LEVEL Status Blocks .......................................................................................................97
5. COMMUNICATIONS .......................................................................................................... 99
5.1. Using the Analyser’s Communication Ports.................................................................................................99
5.1.1. RS-232 DTE and DCE Communication.................................................................................................99
5.1.2. Serial COM Port Default Settings and Connector Pin Assignments .................................................. 100
5.1.3. COM Port Baud Rate.......................................................................................................................... 102
5.1.4. COM Port Communication Modes...................................................................................................... 103
5.1.5. COM Port Testing ............................................................................................................................... 105
5.1.6. Machine ID.......................................................................................................................................... 106
5.1.7. Terminal Operating Modes ................................................................................................................. 107
5.1.7.1. Help Commands in Terminal Mode............................................................................................. 107
5.1.7.2. Command Syntax........................................................................................................................ 108
5.1.7.3. Data Types .................................................................................................................................. 108
5.1.7.4. Status Reporting.......................................................................................................................... 109
5.1.7.5. General Message Format............................................................................................................ 109
5.1.7.6. COM Port Password Security...................................................................................................... 110
5.2. Remote Access by Modem....................................................................................................................... 111
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5.3. Multidrop RS-232 Set Up.......................................................................................................................... 113
5.4. RS-485 Configuration of COM2................................................................................................................ 116
5.5. Remote Access via the USB Port (Option)............................................................................................... 116
5.6. Remote Access via the Ethernet............................................................................................................... 118
5.6.1. Configuring the Ethernet Interface using DHCP................................................................................. 118
5.6.1.1. Manually Configuring the Network IP Addresses........................................................................ 121
5.6.2. Changing the Calibrator’s Hostname.................................................................................................. 123
5.7. APICOM Remote Control Program........................................................................................................... 124
6. CALIBRATION AND VERIFICATION .............................................................................. 125
6.1. Verifying/Calibrating the O3 Photometer................................................................................................... 125
6.1.1. Setup for Verifying and Calibrating the O3 Photometer...................................................................... 125
6.1.1.1. Calibration Manifold Exhaust/Vent Line ...................................................................................... 126
6.1.2. Verifying O3 Photometer Performance ............................................................................................... 127
6.1.3. Calibrating the O3 Photometer............................................................................................................ 128
6.1.3.1. Photometer Zero Calibration ....................................................................................................... 128
6.1.3.2. Photometer Span Calibration ...................................................................................................... 129
6.1.4. O3 Photometer Dark Calibration ......................................................................................................... 130
6.1.5. O3 Photometer Backpressure Compensation Calibration .................................................................. 131
6.2. Calibrating the O3 Generator .................................................................................................................... 132
6.2.1. O3 Generator Calibration table............................................................................................................ 132
6.2.2. Viewing O3 Generator Calibration Points............................................................................................ 133
6.2.3. Adding or Editing O3 Generator Calibration Points............................................................................. 134
6.2.4. Deleting O3 Generator Calibration Points........................................................................................... 135
6.2.5. Turning O3 Generator Calibration Points ON / OFF ........................................................................... 136
6.2.6. Performing an Automatic Calibration of the O3 Generator ................................................................. 137
6.3. Calibrating Gas Pressure Sensors............................................................................................................ 138
6.3.1. Gas Pressure Sensor Calibration Set Up........................................................................................... 138
6.3.2. Calibrating the Pressure Sensors....................................................................................................... 140
6.4. Gas Flow Calibration................................................................................................................................. 141
6.4.1. Calibrating the Photometer’s Sample Gas Flow................................................................................. 143
6.4.2. Calibrating the Output Gas Flow......................................................................................................... 144
6.4.2.1. Output Gas Flow Set Up ............................................................................................................. 144
6.4.2.2. Performing an Output Gas Flow Calibration ............................................................................... 145
TECHNICAL INFORMATION................................................................................................ 147
7. MAINTENANCE SCHEDULE & PROCEDURES............................................................. 149
7.1. Maintenance Schedule ............................................................................................................................. 149
7.2. Performing Leak Checks........................................................................................................................... 153
7.2.1. Pressure Leak Check.......................................................................................................................... 153
7.3. Cleaning or replacing the Absorption Tube .............................................................................................. 155
7.4. Rebuilding the Dry Air Pump..................................................................................................................... 155
7.5. Photometer UV Source Lamp Adjustment................................................................................................ 156
7.6. Photometer UV Source Lamp Replacement............................................................................................. 157
7.7. Adjustment or Replacement of Ozone Generator UV Lamp .................................................................... 159
8. GENERAL TROUBLESHOOTING & SERVICE............................................................... 161
8.1. General Troubleshooting .......................................................................................................................... 161
8.1.1. Fault Diagnosis with WARNING Messages........................................................................................ 162
8.1.2. Fault Diagnosis With Test Functions .................................................................................................. 165
8.1.3. Using the Diagnostic Signal I/O Function........................................................................................... 167
8.2. Using the Analog Output Test Channel .................................................................................................... 169
8.3. Using the Internal Electronic Status LEDs................................................................................................ 170
8.3.1. CPU Status Indicator .......................................................................................................................... 170
8.3.2. Relay PCA Status LEDs ..................................................................................................................... 170
8.3.2.1. I2C Bus Watchdog Status LEDs .................................................................................................. 170
8.3.2.2. Troubleshooting with Relay Board Status LEDs ......................................................................... 171
8.4. Subsystem Checkout................................................................................................................................ 172
8.4.1. Verify Subsystem Calibration.............................................................................................................. 172
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8.4.2. AC Main Power................................................................................................................................... 172
8.4.3. DC Power Supply................................................................................................................................ 173
8.4.4. I2C Bus................................................................................................................................................ 174
8.4.5. Touchscreen Interface........................................................................................................................ 174
8.4.6. LCD Display Module........................................................................................................................... 174
8.4.7. Relay PCA .......................................................................................................................................... 175
8.4.8. Photometer O3 Generator Pressure /Flow Sensor Assembly............................................................. 175
8.4.9. Motherboard........................................................................................................................................ 177
8.4.9.1. A/D Functions.............................................................................................................................. 177
8.4.9.2. Test Channel / Analog Outputs Voltage...................................................................................... 178
8.4.9.3. Status Outputs............................................................................................................................. 179
8.4.9.4. Control Inputs .............................................................................................................................. 180
8.4.9.5. Control Outputs ........................................................................................................................... 181
8.4.10. CPU .................................................................................................................................................. 181
8.4.11. RS-232 Communications.................................................................................................................. 182
8.4.11.1. General RS-232 Troubleshooting.............................................................................................. 182
8.4.11.2. Troubleshooting Calibrator/Modem or Terminal Operation....................................................... 182
8.4.12. Temperature Problems..................................................................................................................... 183
8.4.12.1. Box / Chassis Temperature....................................................................................................... 183
8.4.12.2. Photometer Sample Chamber Temperature............................................................................. 183
8.4.12.3. UV Lamp Temperature.............................................................................................................. 183
8.4.12.4. Ozone Generator Temperature................................................................................................. 184
8.5. Troubleshooting the O3 Photometer ......................................................................................................... 184
8.5.1. Dynamic Problems with the O3 Photometer ....................................................................................... 184
8.5.1.1. Noisy or Unstable O3 Readings at Zero ...................................................................................... 184
8.5.1.2. Noisy, Unstable, or Non-Linear Span O3 Readings .................................................................... 185
8.5.1.3. Slow Response to Changes in Concentration............................................................................. 185
8.5.1.4. The Analog Output Signal Level Does Not Agree With Front Panel Readings........................... 185
8.5.1.5. Cannot Zero................................................................................................................................. 185
8.5.1.6. Cannot Span................................................................................................................................ 185
8.5.2. Checking Measure / Reference Valve ................................................................................................ 186
8.6. Trouble Shooting the O3 Generator .......................................................................................................... 186
8.6.1. Troubleshooting the O3 Generator in the T703................................................................................... 186
8.6.2. Troubleshooting the O3 Generator in the T703U................................................................................ 187
8.7. Repair Procedures.................................................................................................................................... 187
8.7.1. Repairing Sample Flow Control Assembly ......................................................................................... 187
8.7.2. Disk-On-Module Replacement Procedure.......................................................................................... 189
8.8. FAQ’s ........................................................................................................................................................ 190
8.9. Technical Assistance ................................................................................................................................ 190
9. PRINCIPLES OF OPERATION ........................................................................................ 191
9.1. Pneumatic Operation ................................................................................................................................ 191
9.1.1. Gas Flow Control ................................................................................................................................ 191
9.1.1.1. Photometer Critical Flow Orifice.................................................................................................. 192
9.1.2. Internal Gas Pressure Sensors........................................................................................................... 192
9.2. Electronic Operation ................................................................................................................................. 193
9.2.1. Overview............................................................................................................................................. 193
9.2.2. Central Processing Unit (CPU)........................................................................................................... 194
9.2.2.1. Disk On Module (DOM)............................................................................................................... 195
9.2.2.2. Flash Chip ................................................................................................................................... 195
9.2.3. Relay PCA .......................................................................................................................................... 195
9.2.3.1. Valve Control............................................................................................................................... 196
9.2.3.2. Heater Control ............................................................................................................................. 197
9.2.3.3. Relay PCA Status LEDs and Watch Dog Circuitry...................................................................... 197
9.2.3.4. Relay PCA Watchdog Indicator (D1)........................................................................................... 198
9.2.4. Motherboard........................................................................................................................................ 199
9.2.4.1. A to D Conversion ....................................................................................................................... 199
9.2.4.2. Sensor Inputs .............................................................................................................................. 199
9.2.4.3. Thermistor Interface .................................................................................................................... 199
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9.2.4.4. Analog Outputs............................................................................................................................ 199
9.2.4.5. External Digital I/O....................................................................................................................... 200
9.2.4.6. I2C Data Bus................................................................................................................................ 200
9.2.4.7. Power-up Circuit.......................................................................................................................... 200
9.2.5. Power Supply and Circuit Breaker...................................................................................................... 200
9.2.6. AC Power Configuration ..................................................................................................................... 201
9.2.6.1. AC Configuration – Internal Pump (JP7)..................................................................................... 202
9.3. Front Panel Touchscreen/Display Interface.............................................................................................. 203
9.3.1.1. Front Panel Interface PCA .......................................................................................................... 204
9.4. Software Operation................................................................................................................................... 204
9.5. O3 Generator Operation........................................................................................................................... 205
9.5.1. Principle of Photolytic O3 Generation ................................................................................................. 205
9.5.2. Generator Pneumatic Operation......................................................................................................... 207
9.5.3. O3 Generator Electronic Operation ..................................................................................................... 207
9.5.3.1. O3 Generator Temperature Control............................................................................................. 209
9.6. Photometer Operation............................................................................................................................... 210
9.6.1. Measurement Method......................................................................................................................... 210
9.6.1.1. Calculating O3 Concentration...................................................................................................... 210
9.6.1.2. The Measurement / Reference Cycle.......................................................................................... 211
9.6.1.3. The Absorption Path.................................................................................................................... 214
9.6.1.4. Interferent Rejection .................................................................................................................... 215
9.6.2. Photometer Layout.............................................................................................................................. 216
9.6.3. Photometer Pneumatic Operation ...................................................................................................... 216
9.6.4. Photometer Electronic Operation........................................................................................................ 217
9.6.4.1. O3 Photometer Temperature Control .......................................................................................... 218
9.6.4.2. Pneumatic Sensors for the O3 Photometer ................................................................................. 218
10. A PRIMER ON ELECTRO-STATIC DISCHARGE......................................................... 219
10.1. How Static Charges are Created............................................................................................................ 219
10.2. How Electro-Static Charges Cause Damage ......................................................................................... 220
10.3. Common Myths About ESD Damage..................................................................................................... 221
10.4. Basic Principles of Static Control............................................................................................................ 222
10.4.1. General Rules................................................................................................................................... 222
10.4.2. Basic anti-ESD Procedures for Instrument Repair and Maintenance .............................................. 224
10.4.2.1. Working at the Instrument Rack................................................................................................ 224
10.4.2.2. Working at an Anti-ESD Work Bench........................................................................................ 224
10.4.2.3. Transferring Components from Rack to Bench and Back......................................................... 225
10.4.2.4. Opening Shipments from Teledyne API.................................................................................... 225
10.4.2.5. Packing Components for Return to Teledyne API .................................................................... 226
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Table of Contents
Teledyne API T703/T703U Calibrator Operation Manual
LIST OF FIGURES
Figure 3-1: Front Panel Layout ............................................................................................................................24
Figure 3-2: Display Screen and Touch Control....................................................................................................25
Figure 3-3: Display/Touch Control Screen Mapped to Menu Charts...................................................................26
Figure 3-4: Rear Panel Layout.............................................................................................................................27
Figure 3-5: T703 Internal Layout – Top View.......................................................................................................28
Figure 3-6: T703 Pneumatic Diagram..................................................................................................................29
Figure 3-7: T703U Internal Layout - Top View.....................................................................................................30
Figure 3-8: T703U Pneumatic Diagram ...............................................................................................................31
Figure 3-9: TEST CHANNEL Connector..............................................................................................................32
Figure 3-10: Status Output Connector ...................................................................................................................33
Figure 3-11: Digital Control Input Connectors........................................................................................................35
Figure 3-12: Digital Control Output Connector.......................................................................................................36
Figure 3-13: Basic Pneumatic Setup......................................................................................................................38
Figure 3-14: Pressure Regulator Adjustment Knob ...............................................................................................44
Figure 4-1: Front Panel Display ...........................................................................................................................49
Figure 4-2: TEST CHANNEL Connector..............................................................................................................74
Figure 4-3: Setup for Calibrating the TEST CHANNEL .......................................................................................85
Figure 4-4: Set up to Measure an External O3 Source.........................................................................................90
Figure 4-5: LEADS Level Display Format ............................................................................................................96
Figure 5-1: Default Pin Assignments for Rear Panel COM Port connectors (RS-232 DCE & DTE) ................ 100
Figure 5-2: CPU COM1 & COM2 Connector Pin-Outs for RS-232 Mode......................................................... 101
Figure 5-3: Jumper and Cables for Multidrop Mode ......................................................................................... 114
Figure 5-4: RS232-Multidrop PCA Host/Calibrator Interconnect Diagram........................................................ 115
Figure 5-5: APICOM Remote Control Program Interface ................................................................................. 124
Figure 6-1: Set up for Verifying Optional O3 Photometer Using Internal O3 Generator.................................... 125
Figure 6-2: Set up for Verifying Optional O3 Photometer Using an External O3 Generator.............................. 126
Figure 6-3: Pressure Calibration Monitor Point – T703..................................................................................... 138
Figure 6-4: Pressure Calibration Monitor Points – T703U ................................................................................ 139
Figure 6-5: Pressure Regulator Monitor Connection Point (T703 and T703U)................................................. 139
Figure 6-6: O3 Regulator Pressure Monitor Point (T703U only) ....................................................................... 140
Figure 6-7: Output Flow Calibration Monitor Point – T703................................................................................ 144
Figure 7-1: T703 Pneumatic setup for performing Pressure Leak Checks....................................................... 154
Figure 7-2: T703U Pneumatic Setup for Performing Pressure Leak Checks ................................................... 154
Figure 7-3: Photometer – Location of UV Detector Gain Adjustment & UV Lamp Set Screw.......................... 157
Figure 7-4: O3 Generator Temperature Thermistor and DC Heater Locations................................................. 159
Figure 7-5: Location of O3 Generator Reference Detector Adjustment Pot...................................................... 159
Figure 8-1: Example of Signal I/O Function ...................................................................................................... 168
Figure 8-2: CPU Status Indicator ...................................................................................................................... 170
Figure 8-3: Relay PCA Status LEDs Used for Troubleshooting........................................................................ 171
Figure 8-4: Location of DC Power Test Points on Relay PCA.......................................................................... 173
Figure 8-5: Critical Flow Restrictor Assembly Disassembly.............................................................................. 188
Figure 9-3: Electronic Block Diagram................................................................................................................ 193
Figure 9-4: CPU Board Annotated .................................................................................................................... 194
Figure 9-5: Relay Board PCA with AC Relay Retainer Removed..................................................................... 196
Figure 9-6: Heater Control Loop Block Diagram............................................................................................... 197
Figure 9-7: Status LED Locations – Relay PCA ............................................................................................... 197
Figure 9-8: Power Distribution Block diagram................................................................................................... 201
Figure 9-9: Location of the AC Configuration Jumper for the Dry Air Pump..................................................... 202
Figure 9-10: Pump AC Power Jumpers (JP7)..................................................................................................... 203
Figure 9-11: Front Panel Layout ......................................................................................................................... 203
Figure 9-12: Schematic of Basic Software Operation......................................................................................... 204
Figure 9-13: O3 Generator Internal Pneumatics.................................................................................................. 206
Figure 9-14: O3 Generator Valve and Gas Fixture Locations ............................................................................. 207
Figure 9-15: O3 Generator Electronic Block Diagram ......................................................................................... 208
Figure 9-16: O3 Generator Electronic Components Location ............................................................................. 208
Figure 9-17: O3 Generator Temperature Thermistor and DC Heater Locations................................................. 209
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Table of Contents
Figure 9-18: T703 O3 Photometer Gas Flow – Measure Cycle .......................................................................... 212
Figure 9-19: T703 O3 Photometer Gas Flow – Reference Cycle........................................................................ 213
Figure 9-20: T703U O3 Photometer Gas Flow – Measure Cycle....................................................................... 213
Figure 9-21: T703U O3 Photometer Gas Flow – Reference Cycle..................................................................... 214
Figure 9-22: O3 Photometer Absorption Path ..................................................................................................... 215
Figure 9-23: O3 Photometer Layout – Top Cover Removed............................................................................... 216
Figure 9-24: O3 Photometer Electronic Block Diagram....................................................................................... 217
Figure 10-1: Triboelectric Charging..................................................................................................................... 219
Figure 10-2: Basic anti-ESD Work Station.......................................................................................................... 222
LIST OF TABLES
Table 2-1:
Table 2-2:
Table 2-3:
Table 3-1:
Table 3-2.
Table 3-3:
Table 3-4:
Table 3-5:
Table 3-6:
Table 4-1:
Table 4-2:
Table 4-3:
Table 4-4:
Table 4-5:
Table 4-6:
Table 4-7:
Table 4-8:
Table 4-9:
T703/T703U System Specifications ..................................................................................................21
T703/T703U Specifications for Ozone Generator .............................................................................21
T703/T703U Specifications for O3 Photometer .................................................................................22
Display Screen and Touch Control Description.................................................................................25
Rear Panel Description......................................................................................................................27
Status Output Pin Assignments.........................................................................................................33
Control Input Pin Assignments ..........................................................................................................34
Control Output Pin Assignments........................................................................................................36
Possible Warning Messages at Start-Up...........................................................................................41
Test Functions Defined......................................................................................................................48
Calibrator Operating Modes...............................................................................................................49
Automatic Calibration SEQUENCE Set Up Attributes.......................................................................52
Calibration SEQUENCE Step Instruction ..........................................................................................52
Sequence Progress Reporting Mode ................................................................................................61
Password Levels................................................................................................................................72
DIAG - Analog I/O Functions .............................................................................................................74
Test Channels Functions Available on the Analog Output................................................................76
Analog Output Voltage Range Min/Max ............................................................................................78
Table 4-10: Voltage Tolerances for the TEST CHANNEL Calibration..................................................................85
Table 4-11: Variable Names (VARS)....................................................................................................................88
Table 5-1:
Table 5-2:
Table 5-3:
Table 5-4:
Table 5-5:
Table 6-1:
Table 6-2:
Table 7-1:
Table 8-1:
Table 8-2:
Table 8-3:
Table 8-4:
Table 8-5:
Table 8-6:
Table 8-7:
Table 8-8:
Table 8-9:
COM Port Communication Modes.................................................................................................. 103
Terminal Mode Software Commands............................................................................................. 107
Teledyne API Serial I/O Command Types...................................................................................... 108
Ethernet Status Indicators .............................................................................................................. 118
LAN/Internet Configuration Properties............................................................................................ 119
T703/T703U Pressure Sensors ...................................................................................................... 138
T703/T703U Gas Pressure to Output Flow conversion Table........................................................ 142
T703 Maintenance Schedule.......................................................................................................... 151
Front Panel Warning Messages ..................................................................................................... 164
Test Functions - Indicated Failures ................................................................................................ 165
Test Channel Outputs as Diagnostic Tools .................................................................................... 169
Relay PCA Watchdog LED Failure Indications............................................................................... 170
Relay PCA Status LED Failure Indications..................................................................................... 171
DC Power Test Point and Wiring Color Codes............................................................................... 173
DC Power Supply Acceptable Levels............................................................................................. 174
Relay PCA Control Devices............................................................................................................ 175
Analog Output Test Function - Nominal Values Voltage Outputs .................................................. 179
Table 8-10: Status Outputs Check..................................................................................................................... 179
Table 8-11: T703 Control Input Pin Assignments and Corresponding Signal I/O Functions............................. 180
Table 8-12: Control Outputs Pin Assignments and Corresponding Signal I/O Functions Check...................... 181
Table 9-1:
Table 9-2:
Table 9-3:
Relay Board Status LEDs............................................................................................................... 198
AC Power Configuration for Internal Pumps (JP7)......................................................................... 202
Photometer Measurement / Reference Cycle ................................................................................ 212
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Table of Contents
Teledyne API T703/T703U Calibrator Operation Manual
Table 10-1: Static Generation Voltages for Typical Activities............................................................................ 220
Table 10-2: Sensitivity of Electronic Devices to Damage by ESD..................................................................... 220
LIST OF APPENDICES
APPENDIX A - VERSION SPECIFIC SOFTWARE DOCUMENTATION
APPENDIX B - Model T703 SPARE PARTS LIST
APPENDIX C - Model T703 REPAIR QUESTIONNAIRE
APPENDIX D - Model T703 ELECTRONIC SCHEMATICS
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GENERAL INFORMATION
Teledyne API T703/T703U Calibrator Operation Manual
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Teledyne API T703/T703U Calibrator Operation Manual
Introduction
1. INTRODUCTION
This manual provides information and operation instructions for the Model T703 and the
Model T703U calibrators. For simplicity the information and instructions in this manual
refer to both models except where the Model T703U diverges in technical or operational
aspects, in which case the T703U is clearly defined.
1.1. T703/T703U CALIBRATOR OVERVIEW
The Model T703 and the T703U are microprocessor controlled ozone calibrators for
calibration of precision ambient ozone instruments, such as the TAPI T400. They
feature an internal ozone photometer that provides very accurate closed loop feedback
control of the ozone concentration. However, the T703U is capable of generating ozone
in a low range (fractional mode), for ultra-low ozone production.
As many as 50 independent calibration sequences may be programmed into the
T703/T703U, covering time periods of up to one year. The setup of sequences is simple
and intuitive. These sequences may be actuated manually, automatically, or by a remote
signal. The sequences may be uploaded remotely, including remote editing. All
programs are maintained in non-volatile memory.
The T703/T703U design emphasizes fast response, repeatability, overall accuracy and
ease of operation. It may be combined with the Model 701 Zero Air Generator to
provide the ultimate in easy to use, precise calibration for your ozone instruments.
Some of the exceptional features of your T703/T703U Photometric O3 Calibrator are:
Advanced T-Series electronics
LCD Graphical User Interface with capacitive touch screen
Bi directional RS-232 and 10/100Base-T Ethernet, optional USB and RS-485, ports
for remote operation
Front panel USB ports for peripheral devices
12 independent timers for sequences
Nested sequences (up to 5 levels)
Internal ozone generator and photometer allows use as primary or transfer standard
UV Lamp Feedback modes: current control; reference detector control; photometer
control
Lightweight for transportability
T703U: ultra-low ozone production down to 3ppb
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Introduction
Teledyne API T703/T703U Calibrator Operation Manual
1.2. OPTIONS
Option
Number
Option
Description/Notes
Rack Mounting
For mounting the analyzer in standard 19” racks
Rack mount brackets with 26 in. (660 mm) chassis slides
Rack mount brackets with 24 in. (610 mm) chassis slides
Rack mount brackets only
20A
20B
21
The T703/T703U WEIGHS about 16.3 kg (36 pounds). To avoid personal injury we recommend
two persons lift and carry the calibrator.
Disconnect all cables and tubing from the calibrator before carrying it.
Carrying Handle
Parts Kits
Strap to carry unit
29
Carrying handle (strap)
Spare parts and expendables for 1-year operation
Kit, Spares for One Unit
42A
Communications
For remote serial, network and Internet communication with the analyzer.
Type
Description
Shielded, straight-through DB-9F to DB-25M cable, about 1.8 m long. Used to
interface with older computers or code activated switches with DB-25 serial
connectors.
60A
RS-232
60B
60C
RS-232
Shielded, straight-through DB-9F to DB-9F cable of about 1.8 m length.
Cables
Ethernet Patch cable, 2 meters long, used for Internet and LAN communications.
Cable for direct connection between instrument (rear panel USB port) and
personal computer.
60D
64A
USB
USB Port
For rear panel connection to personal computer.
Multidrop/LVDS card seated on the analyzer’s CPU card.
RS-232 Multidrop 62
Each instrument in the multidrop network requres this card and a communications cable
(Option 60B).
External Valve Driver Capability - For driving up to eight, 8-watt valves
48A
48B
12V External Valve Driver Capability
24V External Valve Driver Capability
NIST Traceable, Primary Standard Certification for use as a Primary Ozone Standard if purchased with the O3
generator and photometer options, 1A and 2A, respectively.
95C
95D
Calibration to NIST-SRP
Calibration as aTransfer Standard (6x6)
The Model T703 can be used as a Primary Ozone Standard. For this application the performance of the T703 Photometric
Calibrator is calibrated to Standard Reference Photometer (SRP) Calibrators ordered with this option are verified and
validated in accordance with the procedures prescribed by the U.S. Environmental Protection Agency (EPA) under Title 40
of the Code of Federal Regulations, Part 50, Appendix D (40 CFR Part 50).
Special Features
Built in features, software activated
Maintenance Mode Switch, located inside the instrument, places the analyzer in
maintenance mode where it can continue sampling, yet ignore calibration, diagnostic, and
reset instrument commands. This feature is of particular use for instruments connected to
Multidrop or Hessen protocol networks.
N/A
N/A
Call Customer Service for activation.
Second Language Switch activates an alternate set of display messages in a language
other than the instrument’s default language.
Call Customer Service for a specially programmed Disk on Module containing the second language.
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Teledyne API T703/T703U Calibrator Operation Manual
Specifications and Approvals
2. SPECIFICATIONS AND APPROVALS
2.1. SPECIFICATIONS
Table 2-1: T703/T703U System Specifications
PARAMETER
Linearity
SPECIFICATION
± 1.0% of full scale
1.0 ppb
Precision
Response Time
T703
<180 seconds to 95%
T703U
240 seconds to 95%
Stability (7-days)
<1% photometer feedback; <3% without photometer feedback (CNST or REF)
5-40ºC
Operating Temperature Range
Humidity Range
0 - 95% RH, non-condensing
Operating Altitude
Dimensions (H x W x D)
Weight
10,000 ft Maximum
7” (178 mm) x 17” (432 mm) x 24” (609 mm)
35.5 lbs (16.1 kg) including internal zero air pump
100V – 120V, 60Hz, (64W); (with Zero Air Pump 138W)
220V – 240V, 50Hz, (81W); (with Zero Air Pump 157W)
AC Power
0.1 V, 1 V, 5 V or 10 V (selectable)
Range with 5% under/over-range
Analog Output Ranges
1 Ethernet: 10/100Base-T
2 RS-232 (300 – 115,200 baud)
2 USB device ports
Standard I/O
Optional I/O
8 opto-isolated digital control outputs
12 opto-isolated digital control inputs
8 opto-isolated digital status outputs
1 USB com port
1 RS485
Multidrop RS232
Table 2-2: T703/T703U Specifications for Ozone Generator
T703
T703U
Flow Rate
Concentration
Output
1 to 5 LPM adjustable
w/internal zero air source: 1 to 5 LPM adjustable
w/external zero air source: 1 to 15 LPM adjustable
Min: 50 ppb at 2 LPM
Max: 5 ppm at 1 LPM
Min: 100 ppb LPM
Max: 5 ppm LPM
Min: 3 ppb at 5 LPM
Max: 5 ppm at 1 LPM
Min: 15 ppb LPM
Max: 5 ppm LPM
<240 sec. to 98%
Response Time:
Optical Feedback
<180 sec. to 98%
Standard
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Specifications and Approvals
Teledyne API T703/T703U Calibrator Operation Manual
Table 2-3: T703/T703U Specifications for O3 Photometer
Ranges
0-100 ppb to 0-10 ppm, user selectable
Zero Noise
Span Noise
Lower Detectable Limits
Precision
0.3ppb (RMS)
<0.5%
0.6 ppb (RMS)
1.0 ppb
Linearity
1.0% of Full Scale
<10 seconds
Lag Time
Rise/Fall Time
Zero Drift
<20 sec (photometer response)
<1.0 ppb / 7 days
<1% / 24 hours; <2% / 7 days
800 cc3/min +/- 10%
Span Drift
Flow Rate
2.2. APPROVALS AND CERTIFICATIONS
The Teledyne API Models T703 and T703U Photometric O3 Calibrators were tested and
certified for Safety and Electromagnetic Compatibility (EMC). This section presents the
compliance statements for those requirements and directives.
2.2.1. SAFETY
IEC 61010-1:2001, Safety requirements for electrical equipment for measurement,
control, and laboratory use.
CE: 2006/95/EC, Low-Voltage Directive
North American:
cNEMKO (Canada): CAN/CSA-C22.2 No. 61010-1-04
NEMKO-CCL (US): UL No. 61010-1 (2nd Edition)
2.2.2. EMC
EN 61326-1 (IEC 61326-1), Class A Emissions/Industrial Immunity
EN 55011 (CISPR 11), Group 1, Class A Emissions
FCC 47 CFR Part 15B, Class A Emissions
CE: 2004/108/EC, Electromagnetic Compatibility Directive
2.2.3. OTHER TYPE CERTIFICATIONS
For additional certifications, please contact Technical Support:
Toll-free Phone: 800-324-5190
Phone: 858-657-9800
Fax: 858-657-9816
Email: sda_techsupport @teledyne.com
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Teledyne API T703/T703U Calibrator Operation Manual
Getting Started
3. GETTING STARTED
3.1. UNPACKING AND INITIAL SETUP
CAUTION
THE T703 WEIGHS ABOUT 16.1 KG (35.5 POUNDS) WITHOUT OPTIONS
INSTALLED. TO AVOID PERSONAL INJURY, WE RECOMMEND USING TWO
PERSONS TO LIFT AND CARRY THE CALIBRATOR.
CAUTION – Avoid Warranty Invalidation
Printed circuit assemblies (PCAs) are sensitive to electro-static discharges too small
to be felt by the human nervous system. Damage resulting from failure to use ESD
protection when working with electronic assemblies will void the instrument warranty.
See A Primer on Electro-Static Discharge in this manual for more information on preventing
ESD damage.
CAUTION – Avoid Damage to the Instrument
Do not operate the instrument without first removing dust plugs from pneumatic ports.
NOTE
It is recommended that you store shipping containers/materials for future use if/when the instrument
should be returned to the factory for repair and/or calibration service. See Warranty section in this
manual and shipping procedures on our Website at http://www.teledyne-api.com under Customer
Support > Return Authorization.
WARNING!
NEVER DISCONNECT ELECTRONIC CIRCUIT BOARDS, WIRING HARNESSES
OR ELECTRONIC SUBASSEMBLIES WHILE THE UNIT IS UNDER POWER.
1. Inspect the received packages for external shipping damage. If damaged, please
advise the shipper first, then Teledyne API.
2. Included with your calibrator is a printed record of the final performance
characterization performed on your instrument at the factory. This record, titled
Final Test and Validation Data Sheet (P/N 05760) is an important quality assurance
and calibration record for this instrument. It should be placed in the quality records
file for this instrument.
3. Carefully remove the top cover of the calibrator and check for internal shipping
damage.
Remove the set-screw located in the top, center of the front panel.
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Teledyne API T703/T703U Calibrator Operation Manual
Remove the 2 screws fastening the top cover to the unit (one per side towards
the rear).
Slide the cover backwards until it clears the calibrator’s front bezel.
Lift the cover straight up.
4. Inspect the interior of the instrument to make sure all circuit boards and other
components are in good shape and properly seated.
5. Check the connectors of the various internal wiring harnesses and pneumatic hoses
to make sure they are firmly and properly seated.
6. Verify that all of the optional hardware ordered with the unit has been installed.
These are checked on the paperwork accompanying the calibrator.
VENTILATION CLEARANCE: Whether the calibrator is set up on a bench or
installed into an instrument rack, be sure to leave sufficient ventilation clearance.
AREA
MINIMUM REQUIRED CLEARANCE
10 cm / 4 inches
Back of the instrument
Sides of the instrument
Above and below the instrument.
2.5 cm / 1 inch
2.5 cm / 1 inch
3.1.1. FRONT, REAR, AND INTERNAL CALIBRATOR DESCRIPTION
display screen, which is described in Table 3-1.
Figure 3-1:
Front Panel Layout
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Teledyne API T703/T703U Calibrator Operation Manual
Getting Started
Figure 3-2:
Display Screen and Touch Control
The front panel liquid crystal display (LCD) screen includes touch control. Upon
calibrator start-up, the LCD shows a splash screen and other initialization indicators
before the main display appears.
CAUTION – Avoid Damaging Touchscreen
Do not use hard-surfaced instruments such as pens to operate the touch screen buttons.
Table 3-1:
Display Screen and Touch Control Description
Description/Function
Field
LEDs indicating the states of the calibrator:
Name
Color
State
off
Definition
Unit is operating in STANDBY mode.
Active
Green
This LED is lit when the instrument is actively producing calibration
gas (GENERATE mode).
This LED is lit only when the calibrator is performing an automatic
calibration sequence.
Auto Timer
Fault
Yellow
Red
off
The calibrator is warming up and therefore many of its subsystems
are not yet operating within their optimum ranges. Various warning
messages may appear in the Param field.
blinking
Target/ Actual
Mode
Gas concentrations, Cal gas MFC and Diluent MFC values with unit of measure
Displays the name of the calibrator’s current operating mode (default is STANDBY at initial startup).
Displays a variety of informational messages such as warning messages, operational data, test function
values and response messages during interactive tasks.
Param
Touchscreen control: row of eight buttons with dynamic, context sensitive labels; buttons are blank when inactive/inapplicable.
Figure 3-3 shows how the front panel display is mapped to the menu charts that are
illustrated throughout this manual. The Mode, Param (parameters), and Target/Actual
(gas concentration) fields in the display screen are represented across the top row of
each menu chart. The eight touch control buttons along the bottom of the display screen
are represented in the bottom row of each menu chart.
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Getting Started
Figure 3-4:
Table 3-2.
Rear Panel Layout
Rear Panel Description
Function
Component
Fan For cooling: pulls ambient air through chassis from side vents; exhausts through rear.
Connector for three-prong cord to apply AC power to the instrument
AC Power
Connector
CAUTION! The cord’s power specifications (specs) MUST comply with the
power specs on the calibrator’s rear panel Model number label.
Exhaust gas from ozone generator and photometer (option)
EXHAUST
CAUTION! Exhaust gas must be vented outside.
PHOTO ZERO IN Inlet for photometer Zero Gas (option)
PHOTO ZERO OUT Outlet for photometer Zero Gas (option)
PHOTO IN Measurement gas input for O3 photometer (option)
PHOTO OUT Calibration gas outlet to O3 photometer (option)
CAL GAS OUT Two outlets for calibration gas.
VENT Vent port for output manifold
DRY AIR IN Inlet for dry air.
ZERO AIR IN Inlet for external zero air source – MUST BE CAPPED WHEN NOT CONNECTED.
COM 2 Serial communications port for RS-232 or RS-485 (option).
RX TX LEDs indicate receive (RX) and transmit (TX) activity on the when blinking.
RS-232 Serial communications port for RS-232 only.
Switch to select either data terminal equipment or data communication equipment
DCE DTE
CONTROL OUT For outputs to devices such as Programmable Logic Controllers (PLCs).
STATUS For outputs to devices such as Programmable Logic Controllers (PLCs).
ANALOG OUT For voltage or current loop outputs to a strip chart recorder and/or a data logger.
CONTROL IN For remotely activating the zero and span calibration modes.
ETHERNET Connector for network or Internet remote communication, using Ethernet cable.
USB Connector for direct connection (option) to a personal computer, using USB cable.
Label w/power specs Identifies the instrument model number and lists voltage and frequency specifications
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Getting Started
Teledyne API T703/T703U Calibrator Operation Manual
3.2. ELECTRICAL CONNECTIONS
NOTE
To maintain compliance with EMC standards, it is required that the cable length be no greater than 3 meters for
all I/O connections, which include, Analog Out, Control Out, Status, Control In, Ethernet/LAN, USB, RS-232, and
RS-485.
3.2.1. POWER CONNECTION
Verify the correct line voltage and frequency configuration on the serial number tag on
the rear panel of the T703.
Attach the power cord to the calibrator and plug it into a power outlet capable of
carrying at least 10 A current at your AC voltage and that it is equipped with a
functioning earth ground.
WARNING
HIGH VOLTAGES ARE PRESENT INSIDE THE CALIBRATOR’S CHASSUS.
POWER CONNECTION MUST HAVE FUNCTIONING GROUND CONNECTION.
DO NOT DEFEAT THE GROUND WIRE ON POWER PLUG.
TURN OFF CALIBRATOR POWER BEFORE DISCONNECTING OR
CONNECTING ELECTRICAL SUBASSEMBLIES.
CAUTION – AVOID PERSONAL INJURY
DO NOT LOOK AT THE PHOTOMETER UV LAMP.
UV LIGHT CAN CAUSE EYE DAMAGE.
ALWAYS WEAR GLASSES MADE FROM SAFETY UV FILTERING GLASS
(PLASTIC GLASSES ARE INADEQUATE).
3.2.2. ANALOG OUTPUT TEST CHANNEL CONNECTIONS
The T703 is equipped with an analog output channel accessible through a connector on
the back panel of the instrument. The standard configuration for this output is 0-5 VDC.
It can be set by the user to output one of a variety of diagnostic test functions (see
Section 4.9.)
To access these signals attach a strip chart recorder and/or data-logger to the appropriate
analog output connections on the rear panel of the calibrator.
Pin-outs for the analog output connector at the rear panel of the instrument are:
ANALOG OUT
+ –
Figure 3-9:
TEST CHANNEL Connector
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3.2.3. CONNECTING THE STATUS OUTPUTS
The status outputs report calibrator conditions via optically isolated NPN transistors,
which sink up to 50 mA of DC current. These outputs can be used interface with
devices that accept logic-level digital inputs, such as programmable logic controllers
(PLCs). Each Status bit is an open collector output that can withstand up to 40 VDC.
All of the emitters of these transistors are tied together and available at D.
NOTE
Most PLCs have internal provisions for limiting the current that the input will draw from an external
device. When connecting to a unit that does not have this feature, an external dropping resistor must be
used to limit the current through the transistor output to less than 50 mA. At 50 mA, the transistor will
drop approximately 1.2V from its collector to emitter.
The status outputs are accessed via a 12-pin connector on the calibrator’s rear panel
STATUS
1
2
3
4
5
6
7
8
D
+
Figure 3-10:
Status Output Connector
The pin assignments for the Status Outputs are:
Table 3-3: Status Output Pin Assignments
OUTPUT
#
STATUS
CONDITION
DEFINITION
1
SYSTEM OK
Unassigned
CAL ACTIVE
DIAG
On, if no faults are present.
2
3
On if the calibrator is in GENERATE mode
On if the calibrator is in DIAGNOSTIC mode
On whenever a temperature alarm is active.
On whenever gas pressure alarm is active
4
5
TEMP ALARM
PRESS ALARM
Unassigned
Emitter BUSS
DC POWER
6
7 & 8
D
The emitters of the transistors on pins 1 to 8 are bussed together.
+ 5 VDC
+
Digital Ground
The ground level from the calibrator’s internal DC power supplies.
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3.2.4. CONNECTING THE CONTROL INPUTS
The calibrator is equipped with 12 digital control inputs that can be used to Initiate
assigning the control inputs to specific calibration sequences).
Access to these inputs is via 2 separate 10-pin connectors, labeled CONTROL IN, that
are located on the calibrator’s rear panel.
Table 3-4: Control Input Pin Assignments
CONNECTOR
Top
INPUT
1 to 6
DESCRIPTION
Can be used as either 6 separate on/off switches or as bits 1 through
6 of a 12 bit wide binary activation code (see Section 4.5.1.5)
Can be used as either 6 separate on/off switches or as bits 7 through
12 of a 12 bit wide binary activation code (see Section 4.5.1.5)
Bottom
BOTH
7 to 12
Chassis ground.
Input pin for +5 VDC required to activate pins A – F. This can be from
an external source or from the “+” pin of the instruments STATUS
connector.
Top
U
Input pin for +5 VDC required to activate pins G – L. This can be from
an external source or from the “+” pin of the instruments STATUS
connector.
Bottom
BOTH
U
Internal source of +5V that can be used to actuate control inputs when
connected to the U pin.
+
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There are two methods for energizing the control inputs. The internal +5V available
from the pin labeled “+” is the most convenient method. However, if full isolation is
required, an external 5 VDC power supply should be used.
Example of Local Power Connections
Example of External Power Connections
1
2
3
4
5
6
U
+
1
2
3
4
5
6
U
+
7
8
9
10
11 12
U
+
7
8
9
10
11 12
U
+
5 VDC Power
Supply
+
-
Figure 3-11:
Digital Control Input Connectors
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3.2.5. CONNECTING THE CONTROL OUTPUTS
The calibrator is equipped with 12 opto-isolated, digital control outputs. These outputs
are activated by the user-programmable, calibration sequences (see Section 4.5.1.6 for
instructions on assigning the control outputs to specific calibration sequences)
These outputs may be used to interface with devices that accept logic-level digital
inputs, such as programmable logic controllers (PLCs), dataloggers, or digital
relays/valve drivers.
They are accessed via a 14-pin connector on the calibrator’s rear panel (see Figure 3-4).
CONTROL OUTPUTS
1
2
3
4
5
6
7
8
9
10 11 12
E
Figure 3-12:
Digital Control Output Connector
NOTE
Most PLCs have internal provisions for limiting the current the input will draw. When connecting to a
unit that does not have this feature, external resistors must be used to limit the current through the
individual transistor outputs to ≤50mA (120 Ω for 5V supply).
The pin assignments for the control outputs are:
Table 3-5: Control Output Pin Assignments
PIN #
1 - 12
E
STATUS DEFINITION
Outputs 1 through 12 respectively
Emitter BUSS
CONDITION
Closed if the sequence or sequence step activating output is operating
The emitters of the transistors on pins 1 to 8 are bussed together.
Digital Ground
The ground level from the calibrator’s internal DC power supplies.
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3.2.6. COMMUNICATION CONNECTIONS
The T-Series instruments are equipped with connectors for remote communications
interfaces. This section describes those features.
3.2.6.1. Ethernet Connection
For network or Internet communication with the instrument, connect an Ethernet cable
from the instrument’s rear panel Ethernet interface connector to an Ethernet port.
The T703 firmware supports dynamic IP addressing or DHCP (default setup) for remote
operation via an Ethernet connection. If your network also supports DHCP, the
calibrator will automatically configure its LAN connection appropriately (see Section
manually configuring the LAN connection.
3.2.6.2. USB Option Connection
For direct communication between the instrument and a personal computer (PC),
connect a USB cable between the instrument and desktop or laptop USB ports. (If this
option is installed, the COM2 port can only be used for RS232 multidrop
communication). The Teledyne T-Series USB driver must be installed. See Section 5.5.
3.2.6.3. RS-232 and RS485 Connection
For RS-232 communications through the serial interface COMM ports, refer to Section
5.1.1 of this manual for instructions on configuration and usage. For RS-485
communication, contact the factory.
3.2.6.4. Multidrop Network Connection
If your unit has a Teledyne API RS-232 multidrop card (Option 62), see Section 5.3 for
instructions on setting it up.
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3.3. PNENUMATIC CONNECTIONS
CAUTION!
Do not operate this instrument until you’ve removed dust plugs from inlet and
outlet/exhaust ports on the rear panel!
Ambient
Air
Figure 3-13:
Basic Pneumatic Setup
3.3.1. DRY AIR IN
When using the internal zero air pump, a source of dry air should be connected to the
port labeled ‘Dry Air In’ on the rear panel. This air should be supplied at atmospheric
pressure. The supplied air should have a dew point of –20 C or less.
Teledyne API can supply an optional desiccant cartridge that can be used to supply dry
air to the T703/T703U.
3.3.2. ZERO AIR IN
An external pressurized source of zero air can be supplied at the ‘Zero Air” port on the
rear panel. This is the standard configuration when the zero air pump is not installed.
This zero air should be scrubbed of ozone and have a dew point of -20 C or less. The
pressure of the zero air should be regulated to 20-35 psig.
NOTE
When connecting an external source of zero air to an T703 with an internal zero air pump installed, the
zero air pump should be disabled.
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3.3.3. OUTPUT MANIFOLD
A four-port output manifold is supplied on the rear panel of the T703/T703U enabling
simultaneous testing of up to two external instruments. Sample lines for ozone
instruments to be calibrated can be connected directly to this manifold.
To prevent ozone exposure, the bottom port of this manifold is used as a vent and should
be connected to a proper unpressurized vent manifold. It is important that the
backpressure at this vent fitting be kept to a minimum. If a vent line longer than 2
meters (~6 feet) is required, then 3/8” OD tubing should be used.
Any unused ports on this manifold must be capped.
3.3.4. EXHAUST
The port labeled ‘EXHAUST’ contains the exhaust gas from the internal photometer and
may contain ozone. This port should be connected to a proper unpressurized vent
manifold to prevent ozone exposure.
3.3.5. MEASURING AN EXTERNAL OZONE SOURCE
The T703/T703U can easily be configured to measure an external source of ozone.
3.4. INITIAL OPERATION
If you are unfamiliar with the T703/T703U theory of operation, we recommend that you
read Section 9.
For information on navigating the calibrator’s software menus, see the menu trees
described in Appendix A.
3.4.1. START-UP
After all of the electrical and pneumatic connections are made, turn on the instrument.
The exhaust fan and should start immediately. If the instrument is equipped with an
internal photometer installed, the associated pump should also start up.
The front panel display will show a splash screen and other information during the
initialization process while the CPU loads the operating system, the firmware and the
configuration data.
Once the CPU has completed this activity, it will begin loading the calibrator firmware
and configuration data. During this process, model and software revision information
appear briefly in the Param field of the calibrator’s front panel display before the
firmware is fully booted:
The calibrator should automatically switch to STANDBY mode after completing the
boot-up sequence.
3.4.2. WARM UP
The T703/T703U Photometric calibrator requires a minimum of 30 minutes for all of its
internal components to reach a stable operating temperature.
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3.4.3. WARNING MESSAGES
Because internal temperatures and other conditions may be outside be specified limits
during the calibrator’s warm-up period, the software will suppress most warning
conditions for 30 minutes after power up. If warning messages persist after the 30
minutes warm up period is over, investigate their cause using the troubleshooting
To view and clear warning messages, press:
STANDBY
TEST
SYSTEM RESET
Suppresses the
warning messages
GEN STBY SEQ MSG CLR SETUP
STANDBY
SYSTEM RESET
MSG returns the active
warnings to the message
field.
TEST
GEN STBY SEQ MSG CLR SETUP
STANDBY
SYSTEM RESET
Press CLR to clear the current
TEST
GEN STBY SEQ MSG CLR SETUP
message.
If more than one warning is
active, the next message will take
its place.
SYSTEM
TEST
ANALOG CAL WARNING
CLR SETUP
Once the last warning has
been cleared, the MESSAGE
FIELD will return to displaying
the currently selected TEST
FUNCTION and value.
NOTE:
If a warning message persists after
several attempts to clear it, the message
may indicate a real problem and not an
artifact of the warm-up period
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
Table 3-6 lists brief descriptions of the warning messages that may occur during start up.
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Table 3-6: Possible Warning Messages at Start-Up
Getting Started
MESSAGE
MEANING
The calibrator’s A/D converter or at least one D/A
channel has not been calibrated.
ANALOG CAL WARNING
Stored Configuration information has been reset to the
factory settings or has been erased.
CONFIG INITIALIZED
DATA INITIALIZED
The calibrator’s data storage was erased.
The firmware is unable to communicate with either the
O3 generator or photometer lamp I2C driver chips.
LAMP DRIVER WARN
The O3 generator lamp temperature is outside of
allowable limits.
O3 GEN LAMP TEMP WARNING
O3 GEN REFERENCE WARNING
O3 PUMP WARNING
The O3 generator’s reference detector has dropped
below the minimum allowable limit.
The pump associated with the O3 photometer has failed
to turn on.
The photometer lamp temperature is outside of
allowable limits.
PHOTO LAMP TEMP WARNING
PHOTO REFERENCE WARNING
REAR BOARD NOT DET
RELAY BOARD WARN
The photometer reference reading is outside of
allowable limits.
The calibrator’s motherboard was not detected during
power up.
The firmware is unable to communicate with the
calibrator’s relay board.
The calibrator has been turned off and on or the CPU
was reset.
SYSTEM RESET
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3.4.4. FUNCTIONAL CHECK
1. After the calibrator’s components have warmed up for at least 30 minutes, verify
that the software properly supports any hardware options that are installed.
2. Check to make sure that the calibrator is functioning within allowable operating
parameters. Appendix C includes a list of test functions viewable from the
calibrator’s front panel as well as their expected values. These functions are also
enclosed Final Test and Validation Data sheet (part number 05760) lists these
values before the instrument left the factory.
To view the current values of these parameters press the following touch screen button
sequence on the calibrator’s front panel. Remember until the unit has completed its
warm up these parameters may not have stabilized.
If your calibrator is operating via Ethernet and your network is running a dynamic host
configuration protocol (DHCP) software package, the Ethernet option will automatically
configure its interface with your LAN. However, it is a good idea to check these
settings to make sure that the DHCP has successfully downloaded the appropriate
network
settings
from
your
network
server
(See
Section
If your network is not running DHCP, you will have to configure the calibrator’s
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3.4.5. OPERATING MODES FOR THE O3 GENERATOR
The O3 generator can be set to operate in three different modes:
3.4.5.1. CNST (CONSTANT)
In this mode, the O3 output of the generator is based on a single, constant, drive voltage.
There is no Feedback loop control by the CPU in this mode.
3.4.5.2. REF (REFERENCE)
The O3 control loop will use the reference detector’s measurement of the O3 generator’s
UV lamp as input. This mode does not use the photometer to control the ozone
generator.
3.4.5.3. BNCH (BENCH)
The O3 concentration control loop will use the photometer’s O3 measurement as input.
THIS IS THE DEFAULT AND MOST COMMON MODE OF OPERATION.
This setting will be the default mode of the T703 calibrator and will be mused whenever
the calibrator is using the GENERATE AUTO command or the GENERATE
sequence step to create a calibration mixture. When either the GENERATE MAN
command or the MANUAL sequence step is active, the local O3 generator mode
(chosen during when the command/step is programmed) will take precedence.
3.4.6. SETTING THE O3 GENERATOR MODE
To select a default O3 generator mode, press:
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3.4.7. SETTING THE OUTPUT FLOW RATE
The output flow rate must consider both the total gas flow requirements of all analyzers
connected to the output manifold and the minimum output flow of the O3 generator.
Figure 3-14 shows a close-up of the regulator assembly.
3.4.7.1. Calculating Output Flow Rate
First, add the sum of the flow requirements of all of the instruments to which the
T703/T703U will be supplying calibration gas plus 1 LPM excess flow. For example, if
the T703 is expected to supply calibration gas mixtures simultaneously to two analyzers,
each requiring 0.8 LPM , the minimum Total Flow output would be:
(0.8 + 0.8) + 1.0= 2.6 LPM
Second, calculate the flow rate requirements of the O3 generator output, which must
remain above the minimum specification of 20 PPB*LPM. Use the following equation
to determine the minimum flow rate (FT) for the O3 generator output:
20ppb LPM
FT
O3Conc
Compare the values calculated from the of the above formulae; the greater of the two is
the minimum Total Flow that must be set.
3.4.7.2. Flow Setup for GPT
To set the output flow:
1. Open the front panel of the calibrator by releasing the two snap-in fasteners at the
top of the front panel.
2. Pull out the regulator knob and adjust the regulator until the desired flow is
achieved.
The front panel of the calibrator displays the approximate output flow based on
the measured regulator pressure, but this flow should be verified with an
independent calibrated flow meter attached to one of the CAL GAS outlets on
the back of the instrument (see Figure 3-4).
3. Push the regulator knob back in to lock.
4. Close the front panel.
Figure 3-14:
Pressure Regulator Adjustment Knob
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4. OPERATING THE CALIBRATOR
The T703/T703U calibrator is a computer-controlled calibrator with a dynamic menu
interface for easy, yet powerful and flexible operation. All major operations are
controlled from the front panel touch screen control.
To assist in navigating the system’s software, a series of menu trees can be found in
Appendix A of this manual.
NOTE
The menu flowcharts in this manual depict the manner in which the front panel touchscreen is used to
operate the T703/T703U Photometric Calibrator. Please refer to Figure 3-3 for an illustration of how the
menu flowcharts correlate to the actual front panel.
The menu flowcharts depict typical representations of the display during the various operations being
described; they are not intended to be exact and may differ slightly from the actual display of your
system.
NOTE
When editing values in the software, the ENTR button may disappear if you select a value that is invalid
or out of the allowable range for that parameter (e.g. such as trying to set the 24-hour clock to 25:00:00).
Once you adjust the setting to an allowable value, the ENTR button will re-appear.
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4.1. TEST FUNCTIONS
A variety of TEST FUNCTIONS are available for viewing at the front panel whenever
the calibrator is at the MAIN MENU. These measurements provide information about
the present operating status of the calibrator and are useful during troubleshooting (see
To view these TEST functions, press <TST or TST> from the main menu and the Test
Functions will scroll at the top center of the display.
Table 4-1: Test Functions Defined
TEST MEASUREMENT
DESCRIPTION
O3GEN FRAC=X.XX (T703U only)
For low range mode to produce low levels of ozone during
a GPT calibration where O3 output is <500 PPB LPM
(supported only in GEN-AUTO mode)
O3 PRES=XX.X PSIG
O3 generator regulator pressure
ACT=GENERATE XX PPB O3
Actual concentration being generated, computed from
real-time inputs
TARG=GENERATE XX PPB O3
OUT FLW=X.XXX LPM
REG PRESS=XX.X PSIG
BOX TMP=XX.X ºC
Target concentration to generate
Output flow rate (computed from regulator pressure)
Regulator pressure
Internal chassis temperature
OGEN REF=XXXX.X MV
O3GENDRV=XXXX.X MV
O3LAMPTMP=XX.X ºC
PH MEAS=XXXX.X MV
PH REF=XXXX.X MV
PH FLW=X.XXX LPM
PH LTEMP=XX.X ºC
O3 generator reference detector reading
O3 generator lamp drive output
O3 generator lamp temperature
Photometer detector measure reading
Photometer detector reference reading
Photometer sample flow rate
Photometer lamp temperature
PH SPRES=XX.X IN-HG-A
PH STEMP=XX.X ºC
Photometer sample pressure
Photometer sample temperature
PH SLOPE=X.XXX
Photometer slope computed during zero/span bench
calibration
PH OFFST=X.X PPB
PHOTO STABIL=X.X PPB
TEST=XXXX.X MV
Photometer offset computed during zero/span bench
calibration
Photometer concentration stability (standard deviation of
25 bench concentration samples taken 10 seconds apart)
Value output to TEST_OUTPUT analog output, selected
with TEST_CHAN_ID variable
TIME=HH:MM:SS
Current instrument time of day clock. (24 hour format)
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4.2. OVERVIEW OF OPERATING MODES
The T703 calibrator software has a variety of operating modes. Most commonly, the
calibrator will be operating in STANDBY mode. In this mode, the calibrator and all of
its subsystems are inactive although TEST functions and WARNING messages are still
updated and can be examined via the front panel display.
The second most important operating mode is SETUP mode. This mode is used for
performing certain configuration operations, such as programming the concentration of
source gases, setting up automatic calibration sequences and configuring the analog /
digital inputs and outputs. The SET UP mode is also used for accessing various
diagnostic tests and functions during troubleshooting.
Figure 4-1:
Front Panel Display
The Mode field of the front panel display indicates to the user which operating mode the
unit is currently running.
Besides STANDBY and SETUP, other modes the calibrator can be operated in are:
Table 4-2: Calibrator Operating Modes
MODE
MEANING
DIAG
One of the calibrator’s diagnostic modes is being utilized. When
those diagnostic functions that have the greatest potential to
conflict with generating concentrations are active, the instrument
is automatically placed into Standby mode.
GENERATE
In this mode, the instrument is engaged in producing calibration
gas.
SETUP1
SETUP mode is being used to configure the calibrator.
STANDBY
The calibrator is not actively generating gas.
1 The revision of the Teledyne API software installed in this calibrator will be
displayed following the word SETUP. E.g. “SETUP B.4”
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4.3. STANDBY MODE
When the T703 Photometric Calibrator is in standby mode, it is at rest.
Some functions under the SETUP MORE DIAG submenu, those which conflict
with accurate creation of calibration gas mixtures (e.g. ANALOG OUTPUT STEP
TEST) automatically place the calibrator into STANDBY mode when activated
NOTE
The T703/T703U calibrator should always be placed in STANDBY mode when not needed to produce
calibration gas.
This can be done manually by pressing the STBY button that appears when the calibrator’s display is
When programming a calibration sequences the STANDBY step should always be inserted at the end of
the sequence.
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4.4. GENERAL INFORMATION ABOUT THE GENERATE MODE
The GENERATE mode is the mode of operation where the T703/T703U is actively
producing calibration gas, either zero or some specified concentration of ozone. In the
GENERATE mode the Zero Air Pump (if enabled) and Photometer Pump are turned
on.
4.4.1. GENERATE AUTO: BASIC GENERATION OF CALIBRATION GAS
This is the simplest procedure for generating calibration gas mixtures. To generate
calibration gas, press
The calibrator will now enter GENERATE mode.
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4.5. AUTOMATIC CALIBRATION SEQUENCES
The T703/T703U calibrator can be set up to perform automatic calibration sequences of
multiple steps. These sequences can perform all of the calibration operations available
for manual operation and can be set up to be triggered by using the front panel touch
screen buttons, the internal timer, the external digital control inputs, the RS-232
interface, the Ethernet interface or even as sub-processes in another sequence.
4.5.1. SETUP SEQ: PROGRAMMING CALIBRATION SEQUENCES
A sequence is a database of single or multiple steps where each single step is an
instruction that causes the instrument to perform an operation. These steps are grouped
under a user-defined SEQUENCE NAME.
For each sequence, seven attributes must be programmed; the attributes are presented in
Table 4-3: Automatic Calibration SEQUENCE Set Up Attributes
ATTRIBUTE NAME
DESCRIPTION
NAME
Allows the user to create a text string of up to 10 characters identifying the sequence.
Number of times, between 0 and 100, to execute the same sequence. A value of 0
(zero) causes the sequence to execute indefinitely.
REPEAT COUNT
CC INPUT
Specifies which of the Digital Control Inputs will initiate the sequence.
CC OUTPUT
Specifies which of the Digital Control Outputs will be set when the sequence is active.
Enables or disables an internal automatic timer that can initiate sequences using the
calibrator’s built in clock.
TIMER ENABLE
STEPS
A series of submenus for programming the activities and instructions that make up
the calibration sequence.
Allows the user to select the reporting style the calibrator uses to report the progress
of the sequences , on the front panels display, as it runs
PROGRESS MODE
The types of instruction steps available for creating calibration sequences are presented
in Table 4-4:
Table 4-4: Calibration SEQUENCE Step Instruction
INSTRUCTION NAME
DESCRIPTION
Puts the instrument into GENERATE mode. Similar in operation and effect to the
GENERATE AUTO function used at the front panel.
GENERATE
DURATION
Adds a period of time between the previous instruction and the next
Calls another sequence to be executed at this time. The calling sequence will
resume running when the called sequence is completed. Up to 5 levels of nested
sequences can be programmed.
EXECSEQ
Allows the sequence to activate the digital control outputs. Similar to the CC OUPUT
attribute, but can be set and reset by individual steps.
SETCCOUTPUT
NOTE
It is recommended that each calibration sequence be ended with an instruction to return the instrument
to STANDBY mode.
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To create a sequence, use the instructions in the following sections to name the
sequence, set its associated parameters and define the steps to be included.
4.5.1.1. Activating a Sequence from the T703/T703U Front Panel
To activate an already programmed sequence from the front panel, press:
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Operating the Calibrator
Teledyne API T703/T703U Calibrator Operation Manual
4.5.1.2. Naming a Sequence
The first step of creating a calibration sequence is to assign it a name. The name can be
up to 10 characters and can be comprised of any alpha character (A to Z), and numeral
(0 to 9) or the underscore character (“_“).
To assign a name to a sequence, press,
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Operating the Calibrator
4.5.1.3. Setting the Repeat Count for a Sequence
The sequence can be set to repeat a certain number of times, from 1 to 100. It can also
be set to repeat indefinitely by inputting a zero (0) into the REPEAT COUNTER.
To set the REPEAT COUNTER, press:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SEQUENCE CONFIGURATION
END OF SEQUENCES
EDIT PRINT
EXIT
This display only appears if there are no sequences currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
INS
PRNT EXIT
SETUP X.X
1) SEQ [NAME], [X] STEPS
PREV NEXT
INS DEL EDIT PRNT EXIT
SETUP X.X NAME:0
SET> EDIT
EXIT
Deletes the sequence shown
in the message field
Edits the sequence shown
in the message field
Continue pressing SET> until ...
Scrolls back and forth between
existing sequences
SETUP X.X REPEAT COUNT:1
<SET SET> EDIT
EXIT
SETUP X.X NAME:[0]
0
0
1
ENTER EXIT
EXIT discards the
new NAME
ENTR accepts the
new NAME
Toggle these buttons to set the repeat count from 1 to 100.
Enter “0” to cause the sequence to loop indefinitely
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4.5.1.4. Using the Internal Clock to Trigger Sequences
Sequences can be set to trigger based on the internal clock. The sequence can be set up
to start at a predetermined date and time. It can also be set to repeat after a
predetermined delay time.
So activate and sequence timer, press:
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To specify a starting time for the sequence, press:
Operating the Calibrator
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SEQUENCE CONFIGURATION
END OF SEQUENCES
EDIT PRINT
EXIT
This display only appears if there are no sequences currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
INS
PRNT EXIT
SETUP X.X
1) SEQ [NAME], [X] STEPS
PREV NEXT
INS DEL EDIT PRNT EXIT
SETUP X.X NAME:0
SET> EDIT
EXIT
Deletes the sequence shown
in the message field
Edits the sequence shown
in the message field
Scrolls back and forth between
existing sequences
Continue pressing SET> until ...
SETUP X.X TIMER ENABLE:ENABLED
<SET SET> EDIT
EXIT
SETUP X.X
TIMER START: 01-JAN-06 00:00
<SET SET> EDIT
EXIT
SETUP X.X
TIMER START: 01-JAN-06 00:00
JAN ENTR EXIT
EXIT discards the
new setting
0
1
0
6
ENTR accepts the
new setting
Toggle these
buttons to enter
starting day, month
and year.
DAY
MONTH YEAR
SYSTEM
1
TIME: 12:00
EXIT discards the
new setting
2
:0
0
ENTR EXIT
ENTR accepts the
new setting
Toggle these
buttons to enter the
starting time
HOUR
MINUTE
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Operating the Calibrator
To set the delta timer, press:
Teledyne API T703/T703U Calibrator Operation Manual
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SEQUENCE CONFIGURATION
END OF SEQUENCES
EDIT PRINT
EXIT
This display only appears if there are no sequences currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
INS
PRNT EXIT
SETUP X.X
1) SEQ [NAME], [X] STEPS
PREV NEXT
INS DEL EDIT PRNT EXIT
SETUP X.X NAME:0
SET> EDIT
EXIT
Deletes the sequence shown
in the message field
Edits the sequence shown
in the message field
Scrolls back and forth between
existing sequences
Continue pressing SET> until ...
SETUP X.X
TIMER DELTA: 001:00:00
<SET SET> EDIT
EXIT
SETUP X.X
TIMER DELTA: 0 Days
EXIT discards the
new setting
0
0
0
ENTR EXIT
Toggle these buttons to
enter number of days to
wait between before
ENTR accepts the
new setting
running sequence again.
SYSTEM
1
TIMER DELTA 00:00
:0
EXIT discards the
new setting
2
0
ENTR EXIT
ENTR accepts the
Toggle these
buttons to enter the
starting time
new setting
HOUR
MINUTE
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Operating the Calibrator
4.5.1.5. Setting Up Control Inputs for a Sequence
The calibrator’s control inputs allow the entire sequence to be triggered from an external
source. This feature allows the calibrator to operate in a slave mode so that external
control sources, such as a data logger can initiate the calibration sequences.
Each of the calibrator’s control outputs, located on the back of the instrument (see
Figure 3-2)
12 separate ON/OFF switches assigned to separate calibration sequences or;
A 12-bit wide bus allowing the user to define activation codes for up to 4095
separate calibration sequences.
To assign a CC INPUT pattern / code to a particular sequence, press.
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4.5.1.6. Setting Up Control Outputs for a Sequence
The calibrator’s control outputs allow the entire sequence to be triggered from an
external source. This feature allows the calibrator to control devices that accept logic-
level digital inputs, such as programmable logic controllers (PLCs), dataloggers, or
digital relays/valve drivers.
They can be used as:
12 separate ON/OFF switches assigned to separate calibration sequences, or;
A 12-bit wide bus allowing the user to define activation codes for up to 4095
separate calibration sequences.
They can be set to:
Be active whenever a particular calibration sequence is operating, or;
Activate/deactivate as individual steps within a calibration sequence are run See
Section 4.5.2.5).
To assign a CC OUTPUT pattern / code to a particular sequence, press.
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SEQUENCE CONFIGURATION
END OF SEQUENCES
EDIT PRINT
EXIT
This display only appears if there are no sequences currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
INS
PRNT EXIT
SETUP X.X
1) SEQ [NAME], [X] STEPS
PREV NEXT
INS DEL EDIT PRNT EXIT
SETUP X.X NAME:0
SET> EDIT
EXIT
Deletes the sequence shown
in the message field
Edits the sequence shown
in the message field
Scrolls back and forth between
existing sequences
Continue pressing SET> until ...
SETUP X.X CC OUTPUT:DISABLED
<SET SET> EDIT
EXIT
SETUP X.X CC OUTPUT ENABLE:OFF
EXIT discards the
OFF
ENTER EXIT
new setting
Toggle to turn
the CC output
ON/OFF
ENTR accepts the
new setting
SETUP X.X CC OUTPUT:[0]00000000000
<CH CH> [0] ENTER EXIT
EXIT discards the
new setting
Moves the
cursor one
character left or
right.
ENTR accepts the
new setting
Toggle to turn the selected bit ON/OFF (0 or 1).
Each bit shown on the display represents one of the control
output pins located on the calibrator rear panel (see Figure 3-2),
The left most bit is Bit 1, the next bit to the right, bit 2,
progressing rightward to bit 12 (see Figure 3-10 for connector pin
assignments)
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Operating the Calibrator
4.5.1.7. Setting the Progress Reporting Mode for the Sequences
As sequences run, the calibrator reports progress by displaying a message in the MODE
field of the front panel display (See Figure 3-1). There are several types of report modes
available
Table 4-5: Sequence Progress Reporting Mode
MODE
DESCRIPTION
Shows the progress as the sequence name and step number. This is the traditional display.
Example: “SO2_Test-2”.
STEP
Shows the progress as a percent (0–100%) of the total sequence duration.
Example: “SEQ 48%”
PCT
Shows the progress as days, hours, minutes and seconds elapsed, counting up from 0.
Example (<1 day): “T+01:30:25” (i.e. 1 hour, 30 minutes, 25 seconds elapsed)
Example (>=1 day): “T+1d30:25” (i.e. 1 day, 30 hours, 25 minutes elapsed)
Shows the progress as days, hours, minutes, and seconds remaining, counting down to 0.
Example (<1 day): “T–01:30:25” (i.e. 1 hour, 30 minutes, 25 seconds remaining)
Example (>=1 day): “T–1d30:25” (i.e. 1 day, 30 hours, 25 minutes remaining)
ELAP
REM
To select a PROGRESS report mode, press:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP X.X
O3
CFG CLK PASS MORE
EXIT
SETUP X.X
PRINT
This display only appears if there are no sequences currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
PRNT EXIT
SETUP X.X
PREV NEXT
INS
PRNT EXIT
EDIT
EXIT
Deletes the sequence shown
in the message field
Edits the sequence shown
in the message field
Scrolls back and forth between
existing sequences
Continue pressing SET> until ...
<SET
EXIT
STEP PCT
REM
Use these buttons to
choose a
<SET
8
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4.5.2. ADDING SEQUENCE STEPS
To insert an instruction step into a sequence, navigate to the INSERT STEP submenu
by pressing:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP X.X
O3
CFG CLK PASS MORE
EXIT
SETUP X.X
PRINT
This display only appears if there are no sequences currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
PRNT EXIT
SETUP X.X
PREV NEXT
INS
PRNT EXIT
SET>
EXIT
Deletes the sequence shown
in the message field
Edits the sequence shown
in the message field
Scrolls back and forth between
existing sequences
Press SET> to scroll to each
component to be defined
CH>
EXIT
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Operating the Calibrator
4.5.2.1. The GENERATE Step
This step operates and is programmed similarly to the GENERATE AUTO.
At the end of the programming sequence, the T703/T703U firmware will automatically
insert a DURATION step that needs to be defined.
To insert a GENERATE step into a sequence, press:
Starting at the INSERT STEPS
Submenu
INSERT STEP Submenu
SETUP X.X
INSERT STEP: GENERATE
ENTR EXIT
PREV NEXT
SETUP X.X
GENERATE:ZERO
ZERO ENTR EXIT
Toggle to switch
between ZERO
AIR and O3
modes.
SETUP X.X
GENERATE:0.0 PPB O3
.0 PPB O3
0
0
0
ENTR EXIT
ENTR EXIT
Toggle to scroll
through the
available units of
measure
SETUP X.X
GENERATE:0.0 PPB O3
0
.0
0
1
0
PCT O3
EXIT discards the new
target concentration
ENTR accepts the new
target concentration
Toggle these
buttons to set the
target
concentration.
SETUP X.X
DURATION: 1.0 MIN
.0
0
0
ENTR
EXIT
EXIT
Toggle these
buttons to set
DURATION of this
step
SETUP X.X
3) DURATION : 10.0 MIN
INS DEL EDIT
PREV NEXT
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Teledyne API T703/T703U Calibrator Operation Manual
4.5.2.2. The STANDBY Step
The STANDBY step places the calibrator into STANDBY mode
To insert a STANDBY step into a sequence, press:
4.5.2.3. The DURATION Step
The duration step causes the T703/T703U to continue performing whatever action was
called for by the preceding step of the sequence.
If that step put the instrument into STANDBY mode, the calibrator stays in
STANDBY mode for the period specified by the DURATION step,
If that step put the instrument into GENERATE mode, the will continue to
GENERATE whatever calibration mixture was programmed into that step for the
period specified by the DURATION step,
To insert a DURATION step into a sequence, press:
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4.5.2.4. The EXECSEQ Step
The EXECSEQ step allows the sequence to call another, already programmed
sequence. This is a very powerful tool in that it allows the user to create a “toolbox” of
often-used operations that can then be mixed and matched by an overhead sequence:
To insert an EXECSEQ step into a sequence, press:
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4.5.2.5. The CC OUTPUT Step
This instruction causes the sequence to set or reset the calibrator’s digital control
outputs. It is very useful in situations where the control outputs are being used to trigger
other devices that need to be turned off and on in synch with the operation of the
calibrator as it progress through the sequence.
To insert a CC OUTPUT step into a sequence, press:
Starting at the
INSERT STEP Submenu
PREV NEXT
Submenu
EXIT
Use the PREV and
buttons to scroll though
the list of available instructions
EXIT
Toggle to turn
the CC input ON/
OFF
discards the
new setting
accepts the
new setting
EXIT
Moves the
cursor one
character left or
right.
Toggle to turn the selected bit
(0 or 1)
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4.5.3. DELETING A SEQUENCE
To delete a sequence from the calibrator’s memory, press:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SEQUENCE CONFIGURATION
EDIT PRINT
EXIT
SETUP X.X
3) SEQ [NAME], [X] STEPS
PREV NEXT
INS DEL EDIT PRNT EXIT
Scrolls through existing
sequences
SETUP X.X
DELETE SEQUENCES
YES NO
SEQUENCE DELETED
END OF SEQUENCES
SETUP X.X
PREV NEXT
INS
PRNT EXIT
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Operating the Calibrator
4.6. SETUP CFG
Pressing the CFG button displays the instrument’s configuration information. This
display lists the calibrator model, serial number, firmware revision, software library
revision, CPU type and other information.
Use this information to identify the software and hardware when contacting Technical
Support.
Special instrument or software features or installed options may also be listed here.
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4.7. SETUP CLK
4.7.1. SETTING THE INTERNAL CLOCK’S TIME AND DAY
The T703/T703U has a time of day clock that supports the DURATION step of the
calibration sequence feature, time of day TEST function, and time stamps on most COM
port messages. To set the clock’s time and day, press:
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
EXIT
SETUP X.X
PRIMARY SETUP MENU
O3 SEQ CFG CLK PASS MORE
SETUP X.X
TIME-OF-DAY CLOCK
TIME DATE
EXIT
SETUP X.X
TIME: 12:00
0
SETUP X.X
DATE: 01-JAN-05
1
2
:0
ENTR EXIT
0
1
JAN
0
5
ENTR EXIT
Toggle these
buttons to enter
current day, month
and year.
Toggle these
buttons to enter
current hour
HOUR
SETUP X.X
MINUTE
DAY MONTH YEAR
TIME: 22:30
SETUP X.X
DATE: 18-JUN-05
2
2
:3
0
ENTR EXIT
1
8
JUN
0
5
ENTR EXIT
SETUP X.X
TIME-OF-DAY CLOCK
EXIT returns to
SETUP X.X
display
TIME DATE
EXIT
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Operating the Calibrator
4.7.2. ADJUSTING THE INTERNAL CLOCK’S SPEED
In order to compensate for CPU clocks which run faster or slower, you can adjust a
variable called CLOCK_ADJ to speed up or slow down the clock by a fixed amount
every day. To change this variable, press:
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4.8. SETUP PASS
The menu system provides password protection of the calibration and setup functions to
prevent unauthorized adjustments. When the passwords have been enabled in the PASS
menu item, the system will prompt the user for a password anytime a password-
protected function (e.g., SETUP) is selected. This allows normal operation of the
instrument, but requires the password (101) to access to the menus under SETUP. When
PASSWORD is disabled (SETUP>OFF), any operator can enter the Primary Setup
(SETUP) and Secondary Setup (SETUP>MORE) menus. Whether PASSWORD is
enabled or disabled, a password (default 818) is required to enter the VARS or DIAG
menus in the SETUP>MORE menu.
Table 4-6: Password Levels
PASSWORD
LEVEL
MENU ACCESS ALLOWED
Null (000)
Operation
All functions of the main menu (top level, or Primary, menu)
Access to Primary and Secondary SETUP Menus when
PASSWORD is enabled
Configuration/Maintenance
101
818
Configuration/Maintenance Access to Secondary SETUP Submenus VARS and DIAG
whether PASSWORD is enabled or disabled.
To enable or disable passwords, press:
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Operating the Calibrator
Example: If all passwords are enabled, the following menu button sequence would be
required to enter the VARS or DIAG submenus:
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3 SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SECONDARY SETUP MENU
EXIT
COMM VARS DIAG
SYSTEM
0
ENTER SETUP PASS:0
Press buttons
to set number
0
1
0
ENTR EXIT
SYSTEM
8
ENTER SETUP PASS:0
8
EXAMPLE: This
password enables the
SETUP mode
ENTR EXIT
Calibrator enters selected menu.
NOTE
The instrument still prompts for a password when entering the VARS and DIAG menus, even if
passwords are disabled, but it displays the default password (818) upon entering these menus. The
user only has to press ENTR to access the password-protected menus but does not have to enter the
required number code.
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4.9. SETUP DIAG TEST CHAN OUTPUT: USING THE TEST
CHANNEL ANALOG OUTPUT
The calibrator comes equipped with one analog output. It can be set by the user to carry
an analog VDC signal that rises and falls in relationship with the value of the parameter.
Pin-outs for the analog output connector at the rear panel of the instrument are:
ANALOG OUT
+
–
Figure 4-2:
TEST CHANNEL Connector
4.9.1. CONFIGURING THE TEST CHANNEL ANALOG OUTPUT
4.9.1.1. The Analog I/O Configuration Submenu
Table 4-7 lists the analog I/O functions that are available in the calibrator.
Table 4-7: DIAG - Analog I/O Functions
SUB MENU
FUNCTION
AOUTS
CALIBRATED:
Shows the status of the analog output calibration (YES/NO) and initiates a calibration
of all analog output channels.
CAL_OUT_1:
CAL_OUT_2
NOT USED ON THE T703
TEST OUTPUT
Configures the 11 analog output:
RANGE1: Selects the DCV full-scale value of the output.
OVERRANGE: Turns the ± 5% over-range feature ON/OFF for this output channel.
REC_OFS1: Sets a voltage offset (not available when RANGE is set to CURRent loop.
AUTO_CAL1: Sets the channel for automatic or manual calibration
CALIBRATED1: Performs the same calibration as AOUT CALIBRATED, but on this
one channel only.
AIN CALIBRATED
Shows the calibration status (YES/NO) and initiates a calibration of the analog to digital
converter circuit on the motherboard.
1Changes to RANGE or REC_OFS require recalibration of this output.
To configure the instrument’s TEST CHANNEL, set the electronic signal type of each
channel and calibrate the outputs. This consists of:
1. Choosing a TEST CHANNEL function to be output on the channel.
2. Selecting a signal level that matches the input requirements of the recording device
attached to the channel.
3. Determining if the over-range feature is needed and turn it on or off accordingly.
5. Calibrating the output channel. This can be done automatically or manually for
each channel (see Section 4.9.2).
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To access the analog I/O configuration sub menu, press:
Operating the Calibrator
STANDBY
ACT =STANDBY
Make sure that
the calibrator is
in standby
<TST TST> GEN STBY SEQ
mode.
SETUP X.X
O3
SEQ CFG CLK PASS
EXIT
EXIT
EXIT
SETUP X.X
COMM VARS
SETUP X.X
Toggle these
buttons to enter
the correct
ENTR
until ...
EXIT
Continue pressing
AIO Configuration Submenu
DIAG
PREV NEXT
EXIT
EXIT
<SET
CAL
<SET
EDIT
EXIT
EXIT
<SET SET>
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4.9.1.2. Selecting a TEST Channel Function to Output
The Test Functions available to be reported are:
Table 4-8: Test Channels Functions Available on the Analog Output
TEST CHANNEL
NONE
DESCRIPTION
ZERO
FULL SCALE
TEST CHANNEL IS TURNED OFF
The raw output of the photometer during its
measure cycle
0 mV
0 mV
5000 mV*
5000 mV*
O3 PHOTO MEAS
O3 PHOTO REF
The raw output of the photometer during its
reference cycle
The raw output of the O3 generator’s
reference detector
0 mV
5000 mV*
O3 GEN REF
The gas flow being output through the CAL
GAS outlets on the back of the instrument
0 cm3/min
0 PSIG
0 "Hg
5,000 cm3/min
105 PSIG
OUTPUT FLOW
The gas pressure measured by the O3
generator pressure sensor
REGULATOR PRESSURE
The pressure of gas in the photometer
absorption tube
40 "Hg-In-A
SAMPLE PRESSURE
SAMPLE FLOW
The gas flow rate through the photometer
0 cm3/min
1000 cc3/min
The temperature of gas in the photometer
absorption tube
0 C
70 C
SAMPLE TEMP
The temperature of the photometer UV lamp
PHOTO LAMP TEMP
O3 LAMP TEMP
0 CC
70 C
The temperature of the O3 generator’s UV
lamp
0 mV
5000 mV
The temperature inside the chassis (same as
BOX TEMP)
0 C
70 C
CHASSIS TEMP
The current concentration of O3 being
measured by the photometer.
1 ppm
0 C
O3 PHOTO CONC
Once a function is selected, the instrument not only begins to output a signal on the
analog output, but also adds TEST to the list of Test Functions viewable via the Front
Panel Display.
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To activate the TEST Channel and select a function press:
Operating the Calibrator
STANDBY
ACT =STANDBY
Make sure that
the calibrator is
in standby
<TST TST> GEN STBY SEQ
mode.
SETUP X.X
O3
SEQ CFG CLK PASS
EXIT
SETUP X.X
COMM VAR
EXIT
SETUP X.X
EXIT
Toggle these
buttons to enter
the correct
DIAG
PREV
ENTR EXIT
Continue pressing
until ...
DIAG
PREV NEXT
EXIT
EXIT
DIAG
Toggle to choose a
TEST channel
parameter
DIAG
discards the new
setting
PREV NEXT
EXIT
accepts the
new setting
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4.9.1.3. TEST Channel Voltage Range Configuration
In its standard configuration the analog outputs is set to output a 0 – 5 VDC signals.
Several other output ranges are available (see Table 7-5). Each range has is usable from
-5% to + 5% of the rated span.
Table 4-9: Analog Output Voltage Range Min/Max
RANGE SPAN
0-100 mVDC
0-1 VDC
MINIMUM OUTPUT
-5 mVDC
MAXIMUM OUTPUT
105 mVDC
-0.05 VDC
1.05 VDC
0-5 VDC
-0.25 VDC
5.25 VDC
0-10 VDC
-0.5 VDC
10.5 VDC
The default offset for all ranges is 0 VDC.
To change the output range, press,
From the
AIO CONFIGURATION SUBMENU
DIAG
ANALOG I/O CONFIGURATION
ENTR
PREV NEXT
EXIT
EXIT
DIAG AIO
SET>
AOUTS CALIBRATED: NO
CAL
Continue pressing SET> until you reach the
output to be configured
DIAG AIO
TEST_OUTPUT: 5V, OVR, NOCAL
Pressing ENTR records
the new setting and
returns to the previous
menu.
<SET SET> EDIT
EXIT
These buttons
set the signal
level and type
of the selected
channel
Pressing EXIT ignores the
new setting and returns to
the previous menu.
DIAG AIO
0.1V
TEST_OUTPUT: RANGE: 5V
5V 10V ENTR EXIT
1V
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4.9.1.4. Turning the TEST Channel Over-Range Feature ON/OFF
In its default configuration a ± 5% over-range is available on each of the TEST
CHANNEL output. This over-range can be disabled if your recording device is
sensitive to excess voltage or current.
To turn the over-range feature on or off, press:
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4.9.1.5. Adding a Recorder Offset to the TEST Channel
Some analog signal recorders require that the zero signal be significantly different from
the baseline of the recorder in order to record slightly negative readings from noise
around the zero point. This can be achieved by defining a zero offset, a small voltage
(e.g., 10% of span).
To add a zero offset to a specific analog output channel, press:
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Operating the Calibrator
4.9.2. TEST CHANNEL CALIBRATION
TEST CHANNEL calibration needs to be carried out on first startup of the instrument
(performed in the factory as part of the configuration process) or whenever re-calibration
is required. The analog outputs can be calibrated automatically or adjusted manually. In
its default mode, the instrument is configured for automatic calibration of all channels,
which is useful for clearing any analog calibration warnings associated with channels
that will not be used or connected to any input or recording device, e.g., datalogger.
During automatic calibration, the instrument tells the output circuitry to generate a zero
mV signal and high-scale point signal (usually about 90% of chosen analog signal scale)
then measures actual signal of the output. Any error at zero or high-scale is corrected
with a slope and offset.
Manual calibration should be used for the 0.1V range or in cases where the outputs must
be closely matched to the characteristics of the recording device. Manual calibration
requires the AUTOCAL feature to be disabled.
Automatic calibration can be performed via the AOUTS CALIBRATION command, or
by using the CAL button located inside TEST_CHANNEL submenu. By default, the
instrument is configured so that calibration of TEST CHANNEL can be initiated with
the AOUTS CALIBRATION command.
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4.9.2.1. Enabling or Disabling the TEST CHANNEL Auto-Cal Feature
To enable or disable the Auto-Cal feature for the TEST CHANNEL, press.
From the
AIO CONFIGURATION SUBMENU
DIAG
ANALOG I/O CONFIGURATION
ENTR
PREV NEXT
EXIT
EXIT
DIAG AIO
SET>
AOUTS CALIBRATED: NO
CAL
NOTE:
Continue pressing SET> until you reach the
TEST CHANNELS
configured for 0.1V full
scale should always be
calibrated manually.
output to be configured
DIAG AIO
TEST_OUTPUT: 5V, OVR, NOCAL
<SET SET> EDIT
EXIT
DIAG AIO
TEST_OUTPUT: RANGE: 5V
SET> EDIT
EXIT
Continue pressing SET> until ...
DIAG AIO
TEST_OUTPUT: AUTO CAL.:ON
<SET SET> EDIT
EXIT
ENTR accepts
the new setting.
Toggle to turn
AUTO CAL
ON or OFF
(OFF = manual
calibration mode).
DIAG AIO
ON
TEST_OUTPUT: AUTO CAL.:ON
EXIT ignores the
ENTR EXIT
new setting
DIAG AIO
OFF
TEST_OUTPUT: AUTO CAL.:OFF
ENTR EXIT
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Operating the Calibrator
4.9.2.2. Automatic TEST Channel Calibration
To calibrate the outputs as a group with the AOUTS CALIBRATION command, press:
NOTE
Before performing this procedure, make sure that the AUTO CAL feature is turned OFF for CONC_OUT_1
and CONC_OUT_2,
Make sure that the AUTO CAL feature is turned ON for the TEST CHANNEL (See Section 4.9.2.1)
NOTE:
Manual calibration should be used for the 0.1V range or in cases where the outputs must be closely
matched to the characteristics of the recording device.
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To initiate an automatic calibration from inside the TEST CHANNEL submenu, press:
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Operating the Calibrator
4.9.2.3. Manual Calibration of the TEST Channel Configured for Voltage Ranges
For highest accuracy, the voltages of the analog outputs can be manually calibrated.
NOTE:
The menu for manually adjusting the analog output signal level will only appear if the AUTO-CAL feature
is turned off for the channel being adjusted (see Section 4.9.2.1)
Calibration is performed with a voltmeter connected across the output terminals (See
Figure 4-2) and by changing the actual output signal level using the front panel menu
buttons in 100, 10 or 1 count increments.
V
+DC Gnd
Figure 4-3:
Setup for Calibrating the TEST CHANNEL
Table 4-10: Voltage Tolerances for the TEST CHANNEL Calibration
MINIMUM
ADJUSTMENT
(1 count)
FULL
SCALE
ZERO
TOLERANCE
SPAN
TOLERANCE
SPAN VOLTAGE
0.1 VDC
1 VDC
±0.0005V
±0.001V
±0.002V
±0.004V
90 mV
900 mV
4500 mV
4500 mV
±0.001V
±0.001V
±0.003V
±0.006V
0.02 mV
0.24 mV
1.22 mV
2.44 mV
5 VDC
10 VDC
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To adjust the signal levels of an analog output channel manually, press:
From the
AIO CONFIGURATION SUBMENU
DIAG
ANALOG I/O CONFIGURATION
PREV NEXT
ENTR
EXIT
EXIT
DIAG AIO
SET>
AOUTS CALIBRATED: NO
CAL
Continue pressing SET> until you reach the
output to be configured
DIAG AIO
TEST_OUTPUT: 5V, OVR, NOCAL
<SET SET> EDIT
EXIT
EXIT
DIAG AIO
TEST_OUTPUT: RANGE: 5V
SET> EDIT
Continue pressing SET> until ...
DIAG AIO
TEST_OUTPUT: CALIBRATED:NO
EXIT
<SET SET> CAL
DIAG AIO
TEST_OUTPUT: VOLT-Z: 0 mV
U100 UP10 UP DOWN DN10 D100 ENTREXIT
Only appear if
AUTO-CAL is
turned OFF
These buttons increase / decrease
the analog output signal level (not
the value on the display)
by 100, 10 or 1 counts.
DIAG AIO
TEST_OUTPUT: VOLT-S: 4500 mV
Continue adjustments until the
voltage measured at the output of
the analyzer and/or the input of the
recording device matches the value
in the upper right hand corner of the
display (within the tolerances listed
in Table 6-10
U100 UP10 UP DOWN DN10 D100 ENTREXIT
DIAG AIO
TEST_OUTPUT: CALIBRATED: YES
EXIT
<SET SET> CAL
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Operating the Calibrator
4.9.3. AIN CALIBRATION
This is the sub-menu to calibrate the instrument’s A-to-D conversion circuitry. This
calibration should only be necessary after major repair such as a replacement of CPU,
motherboard or power supplies.
To perform an AIN CALIBRATION, press:
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4.10. SETUP MORE VARS: INTERNAL VARIABLES (VARS)
The T703/T703U has several-user adjustable software variables, which define certain
operational parameters.
Usually, these variables are automatically set by the
instrument’s firmware, but can be manually re-defined using the VARS menu.
The following table lists all variables that are available within the 818 password
protected level. See Appendix A for a detailed listing of all of the variables that are
accessible through the remote interface.
Table 4-11: Variable Names (VARS)
ALLOWED
VALUES
DEFAULT
VALUES
NO.
VARIABLE
DESCRIPTION
58ºC
Warning limits
Sets the photometer lamp temperature set
point and warning limits.
PHOTO_LAMP1,2
0ºC and 100ºC
0
56ºC - 61ºC
48ºC
Warning limits
Sets the O3 generator lamp temperature set
point and warning limits.
O3_GEN LAMP1,2
0ºC and 100ºC
1
43ºC - 53ºC
Set the upper span point of the O3
concentration range for TEST CHANNEL
analog signal O3_PHOTO_CONC.
0.1–20000 ppb
500 ppb
O3_CONC_RANGE
2
O3 bench control flag.
ON turns on the photometer pump and
switches measure/reference valve only
when the O3 mode is set for BNCH (See
Section 3.4.5).
ON/OFF
ON/OFF
O3_PHOTO_BENCH_ONLY2
OFF
3
4
Internal zero air pump control.
ZA_PUMP_ENAB2
ON
ON turns on internal zero air pump when
generating ozone.
Sets the standard Temperature used in
calculating O3 flow rates and concentrations.
STD_TEMP1
STD PRESS1
0ºC and 100ºC
29.92 in-Hg-A
25ºC
5
6
Sets the standard pressure used in
calculating O3 flow rates and concentrations.
15.00 – 50 .00
in-Hg-A
Adjusts the speed of the instrument’s clock.
Choose the + sign if the clock is too slow,
choose the - sign if the clock is too fast (See
Section 4.7.2).
-60 to +60 s/day
Default=0
0
CLOCK_ADJ
7
8
Restarts interval timer since instrument’s last
service, by setting the value to ON. (The
system then resets it to default OFF).
ON/OFF
OFF
SERVICE_CLEAR
Time since last service (in hours).
0-500000
0–100000
0
0
TIME_SINCE_SVC
SVC_INTERVAL
9
Sets the interval between service reminders
(in hours).
10
1 DO NOT ADJUST OR CHANGE these values unless instructed to by Teledyne API’s Technical Support personnel.
2 Only available in calibrators with O3 photometer and generator options installed.
NOTE:
There is a 2-second latency period between when a VARS value is changed and the new value is stored
into the instrument’s memory. DO NOT turn the instrument off during this period or the new setting will
be lost.
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Operating the Calibrator
To access and navigate the VARS menu, use the following menu button sequence:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP X.X
O3
SEQ CFG CLK PASS
EXIT
SETUP X.X
COMM
DIAG
EXIT
SETUP X.X
EXIT
Toggle to enter the correct
SETUP X.X
0) O3_PHOTO_LAMP=58.0 DegC
JUMP EDIT PRNT EXIT
In all cases:
discards the new
setting
these settings unless
specifically instructed to by
Teledyne API’s Customer
Service personnel.
accepts the
new setting
SETUP X.X
PREV
1) O3_PHOT_LAMP=58.0 DegC
JUMP
JUMP
EDIT PRNT EXIT
SETUP X.X
PREV
PRNT EXIT
SETUP X.X
Toggle these bottons to set
the upper span point of the
Test
SETUP X.X
PREV
Channel signal
JUMP
PRNT EXIT
SETUP X.X
SETUP X.X
Toggle to turn this mode
SETUP X.X
PREV
JUMP
PRNT EXIT
Toggle to turn this mode
SETUP X.X
PREV
5) STD_TEMP=25.0 DegC
JUMP
EDIT PRNT EXIT
these settings unless
specifically instructed to by
Teledyne API’s Customer
Service personnel
SETUP X.X
PREV
6) STD PRESS=29.92 In-Hg
JUMP
JUMP
EDIT PRNT EXIT
PREV
EDIT ENTR EXIT
ENTR EXIT
Enter sign and number of
seconds per day the clock
gains (-) or loses(+)
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4.11. OPERATING THE CALIBRATOR AS AN O3 PHOTOMETER
The T703/T703U can easily be configured to measure an external source of ozone.
4.11.1. SET UP FOR OPERATION AS AN O3 PHOTOMETER
To convert the T703/T703U from an O3 calibrator to and O3 photometer:
1. Remove the two loop-back tubing assemblies on the rear panel connected to the
‘PHOTO IN’ and ‘PHOTO ZERO IN’ fittings.
2. Connect the ozone source to be measured to the ‘PHOTO IN’ fitting.
This gas must be supplied at atmospheric pressure.
3. Connect a reference gas (Zero Air) for the photometer to the ‘PHOTO ZERO IN.’
This gas must be supplied at atmospheric pressure. To avoid interference
effects, the reference gas should be from the same source than is being used to
feed the ozone generator that is being assayed.
REFERENCE GAS
SOURCE
O3 SOURCE TO BE
MEASURED
PHOTOMETER INLET
PHOTOMETER OUTLET
1
Capped
PHOTOMETER ZERO IN
PHOTOMETER ZERO OUT
--(vents)--
EXHAUST line: Max Length=3 meters ( or 10 feet)
EXHAUST
ZERO AIR IN
VENT
CAL GAS OUT
CAL GAS OUT
DRY AIR IN
Capped
Photometric
O3 Calibrator
Minimum input gas flow for
Photometer is 800 cc3/min
1
Figure 4-4:
Set up to Measure an External O3 Source
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To use the T703/T703U as a photometer, press:
Operating the Calibrator
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4.12. SETUP LVL: SETTING UP AND USING LEADS (DASIBI)
OPERATING LEVELS
4.12.1. GENERAL INFORMATION ABOUT LEADS LEVELS
The T703 calibrator can be equipped with a version of firmware that includes support
for LEADS, a data collection and analysis system specifically designed for handling
meteorological and environmental data, particularly when there is a need to integrate
data and control instrumentation from several different manufacturers. When a T703
calibrator is equipped with the optional LEADS software used in conjunction with data
loggers located in a central data analysis facility, it is possible to collect and buffer data
between the various calibrators, analyzers and metrological equipment remotely located
at an air monitoring station.
Because LEADS was originally developed for use with TNRCC using Dasibi 5008
calibrators, the LEADS version of the T703 includes support for Dasibi “Dot” serial data
commands and operational “LEVELs”.
NOTE
For more information on the LEADS system, please go to http://www.meteostar.com/.
4.12.2. DOT COMMANDS
The Dasibi “Dot” commands form a text-based (ASCII) data protocol that is transmitted
between a control computer (XENO data logger in this case) and a calibrator or ambient
gas analyzer over an RS-232 connection. The details of the protocol are beyond the
scope of this document, but in its simplest form the protocol is based on a two or three
digit integer preceded by a control-A and a period (.) and then followed by a “!” and a
two digit checksum.
EXAMPLE:
^A.xxx!nn
For further information on dot commands, please contact T-API Technical Support.
An T703 equipped with LEADS software can be simultaneously operated over the same
COM port using standard Teledyne API’s serial data commands and is compatible with
APICOM versions 3.7.3 and later which include an added feature that allows a user to
edit, upload and download level tables.
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4.12.3. LEVELS
A LEVEL is a combination of several parameters:
An ID number for the LEVEL
An action, (e.g. GENERATE, STANDBY)
A target concentration value
An output flow rate (if applicable)
Configuration for one or both of two status output blocks.
Up to twenty levels can be defined and used with the T703 using a range of ID numbers
from 0-98. Level 99 is reserved for standby. Are not time based and do not include
characteristics such as start time or duration, therefore a single LEVEL can not switch
between different concentration levels and flow rates. Separate flow and concentration
outputs must be programmed into separate LEVELs which are then individually started
and stopped either by an operator at the calibrator’s front panel or through a serial data
operation over the RS-232 or Ethernet ports.
4.12.4. ACTIVATING AN EXISTING LEVEL
To activate an existing defined LEVEL, press:
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4.12.5. PROGRAMMING NEW LEVELS
To begin programming a new LEVEL find the LVL submenu by pressing:
Make sure that the
calibrator is in standby
mode.
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3 LEVL SEQ CFG CLK PASS MORE EXIT
This display only appears if there are no LEVELs currently
programmed into the calibrator.
OTHERWISE ...
SETUP X.X
END OF LEVELS
INS
PRNT EXIT
ENTR EXIT
SETUP X.X [LEVEL ID] ) [Gas/Conc.], [Status Block Set]
CHOOSE ACTION Submenu
PREV NEXT
INS DEL EDIT PRNT EXIT
SETUP X.X
ACTION TO PERFORM:GENERATE
PREV NEXT
Deletes the LEVEL shown
in the message field
Edits the LEVEL shown in
the message field
Scrolls back and forth between
Toggle to scroll though the available instructions:
GENERATE & MANUAL
existing LEVELS
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4.12.5.1. Creating a Generate LEVEL
To create a LEVEL using the AUTO generation function, press:
Starting at the CHOOSE ACTION Submenu
CHOOSE ACTION Submenu
SETUP X.X
ACTION TO PERFORM:GENERATE
ENTR EXIT
PREV NEXT
SETUP X.X
GENERATE:ZERO
ZERO ENTR EXIT
Toggle to scroll through
the available gas types
(as programmed during
initial setup.
SETUP X.X
GENERATE:0.0 PPB O3
.0 PPB O3
0
0
0
ENTR EXIT
Toggle to scroll
through the
available units of
measure
Toggle these buttons
to set the target
concentration.
SETUP X.X
GENERATE:0.0 PPB O3
PCT O3
0
.0
0
0
ENTR EXIT
EXIT discards the
new setting
STANDBY
0
LEVEL:0
0
ENTR
EXIT
EXIT discards the new
Toggle these buttons
until the designation of
the existing defined level
program is reached.
LEVEL number
ENTR accepts the new
LEVEL number
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4.12.5.2. Editing or Deleting a LEVEL
To edit or delete an existing LEVEL, press:
Levels are displayed according to the following Format:
LEVEL ID: Any number between 0 and 99. This will be the number used to select
the level when activating / deactivating it, or when editing or deleting it.
Gas Conc: The concentration setting, in ppb, for the O3 generator to produce.
Status Block Setting: This will be displayed as two pairs of 1-digit numbers.
The First pair corresponds to Status Block 1.
The Second pair corresponds to Status Block 2.
n each case:
The left digit will be a number between 1 and 4 representing the binary setting
of bits 1 through 4 and;
The right digit will be a number between 1 and 4 representing the binary setting
of bits 5 through 8.
Figure 4-5:
LEADS Level Display Format
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4.12.6. CONFIGURING LEVEL STATUS BLOCKS
There are two STATUS BLOCKS associated with LEADS LEVELS.
BLOCK 1: This block corresponds to the physical CONTROL OUTPUT connections
BLOCK 2: The second status block does not correspond to any physical output but
is used to communicate status over the serial data port
To configure the either of the STATUS BLOCKS, press:
Make sure that the calibrator
is in standby mode.
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3 LEVL SEQ CFG CLK PASS MORE EXIT
SETUP X.X [LEVEL ID] )[Gas/Conc.],[Status Block Set’g]
PREV NEXT
INS DEL EDIT PRNT EXIT
Toggle to scroll to the
LEVEL for editing.
SETUP X.X LEVEL NUMBER:12
<SET SET> EDIT
EXIT
Continue pressing SET> until Desired
Status Block is reached
SETUP X.X STATUS BLOCK 2:DISABLED
<SET SET> EDIT
EXIT
SETUP X.X STATUS BLOCK 2:OFF
EXIT discards the
OFF
ENTER EXIT
new setting
Turns the CC
input ON/OFF
ENTR accepts the
new setting
SETUP X.X STATUS BLOCK 2:[0]0000000
<CH CH> [0] ENTER EXIT
EXIT discards the
Moves the
cursor one
character left or
right.
new setting
ENTR accepts the
new setting
Toggle to turn the selected bit ON/OFF (0 or 1).
Each bit shown on the display represents one of the control
output pins located on the back of the calibrator.
The left most bit is Bit 1, the next bit to the right, bit 2,
progressing rightward to bit 8.
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Communications
5. COMMUNICATIONS
5.1. USING THE ANALYSER’S COMMUNICATION PORTS
The T703 is equipped with two serial communication ports, labeled RS232 (male DB-9
connector) and COM2 (female DB-9 connector), a USB com port and an Ethernet port
located on the rear panel.
The RS232 (COM1) and COM2 ports operate similarly and give the user the ability to
communicate with, issue commands to, and receive data from the calibrator through an
external computer system or terminal.
The RS-232 port (COM1) can also be configured to operate in standard or RS-232
multidrop mode (Section 5.3).
The COM2 port is configured for standard RS-232 operation by default, but can be
configured for half-duplex RS-485 communication. (Contact the factory for RS-485
communication configuration).
The COM2 port is disabled for all but Multidrop communications when the unit is
configured for USB communications.
The Ethernet connector allows the instrument to be connected to a network running
TCP/IP or to the public Internet if access is available. The network must have routers
capable of operating at 10Base-T or 100Base-T. DHCP is enabled by default (Section
5.6.1). This configuration is useful for quickly getting an instrument up and running on a
network. However, for permanent Ethernet connections, a static IP address should be
used (Section 5.6.1.1).
5.1.1. RS-232 DTE AND DCE COMMUNICATION
RS-232 was developed for allowing communications between data terminal equipment
(DTE) and data communication equipment (DCE). Basic data terminals always fall into
the DTE category whereas modems are always considered DCE devices.
Electronically, the difference between the DCE & DTE is the pin assignment of the Data
Receive and Data Transmit functions.
DTE devices receive data on pin 2 and transmit data on pin 3.
DCE devices receive data on pin 3 and transmit data on pin 2.
A switch located below the serial ports on the rear panel allows the user to switch
between DTE (for use with data terminals) or DCE (for use with modems). Since
computers can be either DTE or DCE, check your computer to determine which mode to
use. Edit the Instrument and Gateway IP addresses and Subnet Mask to the desired
settings. Then, from the computer, enter the same information through an application
such as HyperTerminal.
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Teledyne API T703/T703U Calibrator Operation Manual
5.1.2. SERIAL COM PORT DEFAULT SETTINGS AND CONNECTOR PIN
ASSIGNMENTS
Received from the factory, the calibrator is set up to emulate an RS-232 DCE device.
RS-232 (COM1): RS-232 (fixed), DB-9 male connector.
Baud rate: 115200 bits per second (baud).
Data Bits: 8 data bits with 1 stop bit.
Parity: None.
COM2: RS-232 (configurable to RS 485), DB-9 female connector.
Baud rate: 19200 bits per second (baud).
Data Bits: 8 data bits with 1 stop bit.
Parity: None.
Figure 5-1:
Default Pin Assignments for Rear Panel COM Port connectors (RS-232 DCE & DTE)
The signals from these two connectors are routed from the motherboard via a wiring
harness to two 10-pin connectors on the CPU card, J11 and J12.
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Figure 5-2:
CPU COM1 & COM2 Connector Pin-Outs for RS-232 Mode
Teledyne API offers two mating cables, one of which should be applicable for your use.
Part number WR000077, a DB-9 female to DB-9 female cable, 6 feet long. Allows
connection of the serial ports of most personal computers. Also available as Option
60 (see Section 1.2).
Part number WR000024, a DB-9 female to DB-25 male cable. Allows connection to
the most common styles of modems (e.g. Hayes-compatible) and code activated
switches.
Both cables are configured with straight-through wiring and should require no additional
adapters.
NOTE
Cables that appear to be compatible because of matching connectors may incorporate internal wiring
that makes the link inoperable. Check cables acquired from sources other than Teledyne API for pin
assignments before using.
To assist in properly connecting the serial ports to either a computer or a modem, there
are activity indicators just above the RS-232 port. Once a cable is connected between
the calibrator and a computer or modem, both the red and green LEDs should be on.
If the lights are not lit, use the slide switch on the rear panel to switch between DTE and
DCE modes
If both LEDs are still not illuminated, make sure the cable properly constructed.
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5.1.4. COM PORT COMMUNICATION MODES
Each of the calibrator’s serial ports can be configured to operate in a number of different
modes, listed in Table 7-1. As modes are selected, the calibrator sums the Mode ID
numbers and displays this combined number on the front panel display. For example, if
quiet mode (01), computer mode (02) and Multi-Drop-enabled mode (32) are selected,
the Calibrator would display a combined MODE ID of 35.
Table 5-1: COM Port Communication Modes
MODE1
QUIET
ID
DESCRIPTION
Quiet mode suppresses any feedback from the calibrator (such as warning messages)
to the remote device and is typically used when the port is communicating with a
computer program where such intermittent messages might cause communication
problems.
1
Such feedback is still available but a command must be issued to receive them.
Computer mode inhibits echoing of typed characters and is used when the port is
communicating with a computer operated control program.
COMPUTER
SECURITY
2
4
When enabled, the serial port requires a password before it will respond. The only
command that is active is the help screen (? CR).
When turned on this mode switches the COM port settings
from
No parity; 8 data bits; 1 stop bit
to
E, 7, 1
2048
Even parity; 7 data bits; 1 stop bit
Configures the COM2 Port for RS-485 communication. RS-485 mode has precedence
over multidrop mode if both are enabled.
RS-485
1024
32
MULTIDROP
PROTOCOL
Multidrop protocol allows a multi-instrument configuration on a single communications
channel. Multidrop requires the use of instrument IDs.
ENABLE
MODEM
Enables to send a modem initialization string at power-up. Asserts certain lines in the
RS-232 port to enable the modem to communicate.
64
ERROR
Fixes certain types of parity errors at certain Hessen protocol installations.
CHECKING2
128
256
XON/XOFF
Disables XON/XOFF data flow control also known as software handshaking.
HANDSHAKE2
Enables CTS/RTS style hardwired transmission handshaking. This style of data
transmission handshaking is commonly used with modems or terminal emulation
protocols as well as by Teledyne Instrument’s APICOM software.
HARDWARE
HANDSHAKE
8
HARDWARE
FIFO2
Disables the HARDWARE FIFO (First In – First Out), When FIFO is enabled it
improves data transfer rate for that COM port.
512
COMMAND
PROMPT
Enables a command prompt when in terminal mode.
4096
1 Modes are listed in the order in which they appear in the
SETUP MORE COMM COM[1 OR 2] MODE menu
2 The default setting for this feature is ON. Do not disable unless instructed to by Teledyne API’s Technical Support
personnel.
Note
Communication Modes for each COM port must be configured independently.
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Press the following menu buttons to select communication modes for a one of the COM
Ports, such as the following example where RS-485 mode is enabled:
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SECONDARY SETUP MENU
EXIT
COMM VARS DIAG
SETUP X.X
COMMUNICATIONS MENU
ID
COM1 COM2
EXIT
Combined Mode ID
displayed here
SETUP X.X
COM1 MODE:0
<SET SET> EDIT
EXIT
EXIT
SETUP X.X
COM1 QUIET MODE:OFF
PREV NEXT OFF
Use the PREV and
NEXT to scroll
between the
available modes
Continue pressing NEXT until ...
SETUP X.X
COM1 RS-485 MODE:OFF
PREV NEXT OFF
ENTR EXIT
ON/OFF activates /
deactivates the
selected mode.
SETUP X.X
COM1 RS-485 MODE:ON
EXIT discards the new
PREV NEXT OFF
ENTR EXIT
setting
ENTR accepts the
new setting
PREV and NEXT scroll to other COM modes you
want to enable or disable
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5.1.5. COM PORT TESTING
The serial ports can be tested for correct connection and output in the COM menu. This
test sends a string of 256 ‘w’ characters to the selected COM port. While the test is
running, the red LED on the rear panel of the calibrator should flicker.
To initiate the test press the following key sequence.
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5.1.6. MACHINE ID
Each model of Teledyne API instruments is initially configured with a default Machine
ID code, which is editable; all T703 calibrators have a Machine ID of either 703 or 0.
The Machine ID number is only important if more than one calibrator is connected to
the same communications channel such as when several calibrators are on the same
one channel, their Machine ID numbers must differ.
To edit the instrument’s Machine ID, press:
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SECONDARY SETUP MENU
EXIT
COMM VARS DIAG
SETUP X.X
COMMUNICATIONS MENU
ID INET COM1 COM2
EXIT
SETUP X.X
MACHINE ID:703 ID
EXIT discards the new
0
7
0
0
ENTR EXIT
setting
Toggle to cycle
through the available
character set: 0-9
ENTR accepts the
new setting
The ID number is only important if more than one calibrator is connected to the same
communications channel (e.g., a multi-drop setup). Different models of Teledyne API’s
calibrators have different default ID numbers, but if two calibrators of the same model
type are used on one channel (for example, two T703’s), the ID of one instrument needs
to be changed.
The ID can also be used for to identify any one of several calibrators attached to the
same network but situated in different physical locations.
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5.1.7. TERMINAL OPERATING MODES
The T703 can be remotely configured, calibrated or queried for stored data through the
serial ports. As terminals and computers use different communication schemes, the
calibrator supports two communicate modes specifically designed to interface with these
two types of devices.
Computer mode is used when the calibrator is connected to a computer with a
dedicated interface program.
Interactive mode is used with a terminal emulation programs such as
HyperTerminal or a “dumb” computer terminal. The commands that are used to
operate the calibrator in this mode are listed in Table 5-2.
5.1.7.1. Help Commands in Terminal Mode
Table 5-2: Terminal Mode Software Commands
COMMAND
Control-T
Function
Switches the calibrator to terminal mode
(echo, edit). If mode flags 1 & 2 are OFF,
the interface can be used in interactive
mode with a terminal emulation program.
Control-C
Switches the calibrator to computer mode
(no echo, no edit).
CR
A carriage return is required after each
command line is typed into the
(carriage return)
terminal/computer. The command will not
be sent to the calibrator to be executed until
this is done. On personal computers, this is
achieved by pressing the ENTER key.
BS
Erases one character to the left of the
cursor location.
(backspace)
ESC
Erases the entire command line.
(escape)
? [ID] CR
This command prints a complete list of
available commands along with the
definitions of their functionality to the
display device of the terminal or computer
being used. The ID number of the
calibrator is only necessary if multiple
calibrators are on the same
communications line, such as the multi-
drop setup.
Control-C
Control-P
Pauses the listing of commands.
Restarts the listing of commands.
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5.1.7.2. Command Syntax
Commands are not case-sensitive and all arguments within one command (i.e. ID
numbers, keywords, data values, etc.) must be separated with a space character.
All Commands follow the syntax:
X [ID] COMMAND <CR>
Where:
X
is the command type (one letter) that defines the type of command.
[ID]
Command “? 200” followed by a carriage return would print the list of
available commands for the revision of software currently installed in the
instrument assigned ID Number 200.
COMMAND is the command designator: This string is the name of the command being
issued (LIST, ABORT, NAME, EXIT, etc.). Some commands may have
additional arguments that define how the command is to be executed.
Press ? <CR> or refer to Appendix A for a list of available command
designators.
<CR>
is a carriage return. All commands must be terminated by a carriage
return (usually achieved by pressing the ENTER key on a computer).
Table 5-3: Teledyne API Serial I/O Command Types
COMMAND
COMMAND TYPE
Calibration
Diagnostic
C
D
L
Logon
T
Test measurement
Variable
V
W
Warning
5.1.7.3. Data Types
Data types consist of integers, hexadecimal integers, floating-point numbers, Boolean
expressions and text strings.
Integer data are used to indicate integral quantities such as a number of records, a
filter length, etc. They consist of an optional plus or minus sign, followed by one or
more digits. For example, +1, -12, 123 are all valid integers.
Hexadecimal integer data are used for the same purposes as integers. They
consist of the two characters “0x,” followed by one or more hexadecimal digits (0-9,
A-F, a-f), which is the ‘C’ programming language convention. No plus or minus sign
is permitted. For example, 0x1, 0x12, 0x1234abcd are all valid hexadecimal
integers.
Floating-point numbers are used to specify continuously variable values such as
temperature set points, time intervals, warning limits, voltages, etc. They consist of
an optional plus or minus sign, followed by zero or more digits, an optional decimal
point and zero or more digits. (At least one digit must appear before or after the
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decimal point.) Scientific notation is not permitted. For example, +1.0, 1234.5678, -
0.1, 1 are all valid floating-point numbers.
Boolean expressions are used to specify the value of variables or I/O signals that
may assume only two values. They are denoted by the keywords ON and OFF.
Text strings are used to represent data that cannot be easily represented by other
data types, such as data channel names, which may contain letters and numbers.
They consist of a quotation mark, followed by one or more printable characters,
including spaces, letters, numbers, and symbols, and a final quotation mark. For
example, “a”, “1”, “123abc”, and “()[]<>” are all valid text strings. It is not possible to
include a quotation mark character within a text string.
Some commands allow you to access variables, messages, and other items. When
using these commands, you must type the entire name of the item; you cannot
abbreviate any names.
5.1.7.4. Status Reporting
Reporting of status messages as an audit trail is one of the three principal uses for the
RS-232 interface (the other two being the command line interface for controlling the
instrument and the download of data in electronic format). You can effectively disable
Status reports include warning messages, calibration and diagnostic status messages.
Refer to Appendix A for a list of the possible messages, and this for information on
controlling the instrument through the RS-232 interface.
5.1.7.5. General Message Format
All messages from the instrument (including those in response to a command line
request) are in the format:
X DDD:HH:MM [Id] MESSAGE<CRLF>
Where:
X
is a command type designator, a single character indicating the message
type, as shown in the Table 6-27.
DDD:HH:MM is the time stamp, the date and time when the message was issued. It
consists of the Day-of-year (DDD) as a number from 1 to 366, the hour of
the day (HH) as a number from 00 to 23, and the minute (MM) as a
number from 00 to 59.
[ID]
is the calibrator ID, a number with 1 to 4 digits.
MESSAGE
is the message content that may contain warning messages, Test
Functions, variable values, etc.
<CRLF>
is a carriage return / line feed pair, which terminates the message.
The uniform nature of the output messages makes it easy for a host computer to parse
them into an easy structure. Keep in mind that the front panel display does not give any
information on the time a message was issued, hence it is useful to log such messages
for trouble-shooting and reference purposes. Terminal emulation programs such as
HyperTerminal can capture these messages to text files for later review.
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5.1.7.6. COM Port Password Security
In order to provide security for remote access of the T703, a LOGON feature can be
enabled to require a password before the instrument will accept commands. This is done
MODE is enabled, the following items apply.
A password is required before the port will respond or pass on commands.
If the port is inactive for one hour, it will automatically logoff, which can also be
achieved with the LOGOFF command.
Three unsuccessful attempts to log on with an incorrect password will cause
subsequent logins to be disabled for 1 hour, even if the correct password is used.
If not logged on, the only active command is the '?' request for the help screen.
The following messages will be returned at logon:
LOGON SUCCESSFUL - Correct password given
LOGON FAILED - Password not given or incorrect
LOGOFF SUCCESSFUL - Connection terminated successfully
To log on to your calibrator with SECURITY MODE feature enabled, type:
LOGON 940331
940331 is the default password. To change the default password, use the variable
RS232_PASS issued as follows:
V RS232_PASS=NNNNNN
Where N is any numeral between 0 and 9.
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5.2. REMOTE ACCESS BY MODEM
The T703 can be connected to a modem for remote access. This requires a cable
between the calibrator’s COM port and the modem, typically a DB-9F to DB-25M cable
(available from Teledyne API with part number WR0000024).
Once the cable has been connected, check to make sure:
The DTE-DCE is in the DCE position.
The T703 COM port is set for a baud rate that is compatible with the modem,
The Modem is designed to operate with an 8-bit word length with one stop bit.
The MODEM ENABLE communication mode is turned ON (Mode 64, see Section
Once this is completed, the appropriate setup command line for your modem can be
entered into the calibrator. The default setting for this feature is
AT Y0 &D0 &H0 &I0 S0=2 &B0 &N6 &M0 E0 Q1 &W0
This string can be altered to match your modem’s initialization and can be up to 100
characters long.
To change this setting press:
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
SETUP X.X
COM1 MODE:0
O3
SEQ CFG CLK PASS MORE
EXIT
<SET SET> EDIT
EXIT
SETUP X.X
SECONDARY SETUP MENU
EXIT
Continue pressing <SET or SET> until ...
COMM VARS DIAG
SETUP X.X
COM1 PORT INIT:AT Y0 &DO &H &I0
EXIT
SETUP X.X
COMMUNICATIONS MENU
<SET SET> EDIT
ID
COM1 COM2
EXIT
SETUP X.X
COM1 PORT INIT:AT Y0 &DO &H &I0
[A] ENTR EXIT
EXIT discards the
<CH CH> INS DEL
The <CH and CH>
keys move the cursor
left and right along the
text string
new setting
ENTR accepts the
new setting
The INS and CH> key
inserts a new
character before the
cursor position
Toggle this key to cycle through the
available character set:
The DEL
deletes
character at
the cursor
position
Alpha: A-Z (Upper and Lower
Case);
Special Characters: space ’ ~ ! # $
% ^ & * ( ) - _ = +[ ] { } < > | ; : , . / ?
Numerals: 0-9
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To Initialize the modem press:
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SECONDARY SETUP MENU
EXIT
COMM VARS DIAG
SETUP X.X
COMMUNICATIONS MENU
ID
COM1 COM2
EXIT
EXIT
SETUP X.X
COM1 MODE:0
<SET SET> EDIT
Continue pressing <SET or SET> until ...
SETUP X.X
COM1: INITIALIZE MODEM
ENTR EXIT
<SET SET> INIT
SETUP X.X
SETUP X.X
INITIALIZING MODE
MODEM INITIALIZED
Test Runs
Automatically
PREV NEXT OFF
EXIT
If there is a problem initializing the
modem the message,
“MODEM NOT INITIALIZED”
will appear.
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5.3. MULTIDROP RS-232 SET UP
When the RS-232 Multidrop option is installed, connection adjustments and
configuration through the menu system are required. This section provides instructions
for the internal connection adjustments, then for external connections, and ends with
instructions for menu-driven configuration.
Note that because the RS-232 Multidrop option uses both the RS232 and COM2 DB9
connectors on the instrument’s rear panel to connect the chain of instruments, COM2
port is no longer available for separate RS-232 or RS-485 operation.
CAUTION – Risk of Instrument Damage and Warranty Invalidation
Printed circuit assemblies (PCAs) are sensitive to electro-static discharges too
small to be felt by the human nervous system. Damage resulting from failure to
use ESD protection when working with electronic assemblies will void the
instrument warranty.
See A Primer on Electro-Static Discharge section in this manual for more information
on preventing ESD damage.
In each instrument with the Multidrop option there is a shunt jumpering two pins on the
serial Multidrop and LVDS printed circuit assembly (PCA), as shown in Figure 5-3.
This shunt must be removed from all instruments except that designated as last in the
multidrop chain, which must remain terminated. This requires powering off and opening
each instrument and making the following adjustments:
1. With NO power to the instrument, remove its top cover and lay the rear panel open
for access to the Multidrop/LVDS PCA, which is seated on the CPU.
2. On the Multidrop/LVDS PCA’s JP2 connector, remove the shunt that jumpers Pins
chain where the shunt should remain at Pins 21 22).
3. Check that the following cable connections are made in all instruments (again refer
J3 on the Multidrop/LVDS PCA to the CPU’s COM1 connector
(Note that the CPU’s COM2 connector is not used in Multidrop)
J4 on the Multidrop/LVDS PCA to J12 on the motherboard
J1 on the Multidrop/LVDS PCS to the front panel LCD
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Figure 5-3:
Jumper and Cables for Multidrop Mode
4. Close the instrument.
interconnect the host RS232 port to the first instrument’s RS232 port; then from the
first instrument’s COM2 port to the second instrument’s RS232 port; from the
second instrument’s COM2 port to the third instrument’s RS232 port, etc.,
connecting in this fashion up to eight instruments, subject to the distance limitations
of the RS-232 standard.
6. On the rear panel of each instrument, adjust the DCE DTE switch so that the green
and the red LEDs (RX and TX) of the COM1 connector (labeled RS232) are both lit.
(Ensure you are using the correct RS-232 cables internally wired specifically for RS-
232 communication).
7. BEFORE communicating from the host, power on the instruments and check that
a. In the SETUP Model menu, use SETUP>MORE>COMM>ID. The default ID is
typically either the model number or “0”.
b. To change the identification number, press the button below the digit to be changed.
c. Press/select ENTR to accept the new ID for that instrument.
8. Next, in the SETUP>MORE>COMM>COM1 menu (do not use the COM2 menu for
multidrop), edit the COM1 MODE parameter as follows: press/select EDIT and set
only QUIET MODE, COMPUTER MODE, and MULTIDROP MODE to ON. Do not
change any other settings.
9. Press/select ENTER to accept the changed settings, and ensure that COM1 MODE
now shows 35.
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10. Press/select SET> to go to the COM1 BAUD RATE menu and ensure it reads the
same for all instruments (edit as needed so that all instruments are set at the same
baud rate).
NOTE:
Teledyne API recommends setting up the first link, between the Host and the first instrument and
testing it before setting up the rest of the chain.
The (communication) Host instrument can address only one instrument at a time, each by its unique ID
(see Step 7 above).
Female DB9
Host
Male DB9
RS-232 port
Analyzer
Analyzer
Analyzer
Last Analyzer
COM2
COM2
COM2
COM2
RS-232
RS-232
RS-232
RS-232
Ensure jumper is
installed between
JP2 pins 21
last instrument of
multidrop chain.
22 in
Figure 5-4:
RS232-Multidrop PCA Host/Calibrator Interconnect Diagram
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5.4. RS-485 CONFIGURATION OF COM2
As delivered from the factory, COM2 is configured for RS-232 communications. This
port can be reconfigured for operation as a non-isolated, half-duplex RS-485 port. To
configure the instrument for RS-485 communication, please contact the factory. (Using
COM2 for RS-485 communications disables the optional USB com port).
5.5. REMOTE ACCESS VIA THE USB PORT (OPTION)
The calibrator can be connected to a personal computer by direct connection through
their respective USB ports.
1. Install the Teledyne T-Series USB driver on your computer, downloadable from the
Teledyne API website under Help Center>Software Downloads (www.teledyne-
api.com/software).
2.
Run the installer file: “TAPIVCPInstaller.exe”
3. Connect the USB cable between the USB ports on your personal computer and
your calibrator. The USB cable should be a Type A – Type B cable, commonly
used as a USB printer cable.
4. Determine the Windows XP Com Port number that was automatically assigned to
the USB connection. (Start → Control Panel → System → Hardware → Device
Manager). This is the com port that should be set in the communications software,
such as APIcom or Hyperterminal.
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Refer to the Quick Start (Direct Cable Connection) section of the Teledyne APIcom
Manual, PN 07463.
5. In the instrument’s SETUP>MORE>COMM>COM2 menu, make the following
settings:
Baud Rate: 115200
COM2 Mode Settings:
Quiet Mode
ON
Computer Mode
ON
MODBUS RTU
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
MODBUS ASCII
E,8,1 MODE
E,7,1 MODE
RS-485 MODE
SECURITY MODE
MULTIDROP MODE
ENABLE MODEM
ERROR CHECKING
XON/XOFF HANDSHAKE
HARDWARE HANDSHAKE
HARDWARE FIFO
COMMAND PROMPT
OFF
OFF
ON
OFF
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5.6. REMOTE ACCESS VIA THE ETHERNET
The calibrator can be connected to any standard 10Base-T or 100Base-T Ethernet
network via low-cost network hubs, switches or routers. The interface operates as a
standard TCP/IP device on port 3000. This allows a remote computer to connect
through the internet to the calibrator using APICOM, terminal emulators or other
programs.
Under the SETUP>MORE>COMM menu the INET submenu is used to manage and
configure the Ethernet interface with your LAN or Internet Server(s). The calibrator is
shipped with DHCP enabled by default. This allows the instrument to be connected to a
network or router with a DHCP server, but for a permanent Ethernet connection,
configure the instrument with a static IP address (Section 5.6.1.1).
The Ethernet LEDs located on the connector indicate the Ethernet connection status.
Table 5-4: Ethernet Status Indicators
LED
FUNCTION
amber (link)
On when connection to the LAN is valid.
green (activity) Flickers during any activity on the LAN.
5.6.1. CONFIGURING THE ETHERNET INTERFACE USING DHCP
The Ethernet feature for your T703 uses Dynamic Host Configuration Protocol (DHCP)
to configure its interface with your LAN automatically. This requires your network
servers also be running DHCP. The calibrator will do this the first time you turn the
instrument on after it has been physically connected to your network. Once the
instrument is connected and turned on, it will appear as an active device on your
network without any extra set up steps or lengthy procedures.
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NOTE
It is a good idea to check the INET settings the first time you power up your calibrator after it has been
physically connected to the LAN/Internet to make sure that the DHCP has successfully downloaded the
appropriate information from you network server(s).
The Ethernet configuration properties are viewable via the calibrator’s front panel.
Table 5-5: LAN/Internet Configuration Properties
PROPERTY
DEFAULT
STATE
DESCRIPTION
This displays whether the DHCP is turned ON or OFF.
DHCP STATUS
ON
INSTRUMENT
IP ADDRESS
This string of four packets of 1 to 3 numbers each (e.g. 192.168.76.55.)
is the address of the calibrator itself.
0.0.0.0
A string of numbers very similar to the Instrument IP address (e.g.
192.168.76.1.) that is the address of the computer used by your LAN to
access the Internet.
GATEWAY IP
ADDRESS
0.0.0.0
0.0.0.0
Also, a string of four packets of 1 to 3 numbers each (e.g.
255.255.252.0) that defines that identifies the LAN to which the device is
connected.
SUBNET MASK
All addressable devices and computers on a LAN must have the same
subnet mask. Any transmissions sent devices with different subnet
masks are assumed to be outside of the LAN and are routed through a
different gateway computer onto the Internet.
This number defines the terminal control port by which the instrument is
addressed by terminal emulation software, such as Internet or Teledyne
API’s APICOM.
TCP PORT1
3000
T703
The name by which your calibrator will appear when addressed from
other computers on the LAN or via the Internet. While the default setting
for all Teledyne API’s T703 calibrators is “T703”, the host name may be
changed to fit customer needs.
HOST NAME
1 Do not change the setting for this property unless instructed to by Teledyne API’s Technical Support
personnel.
NOTE
If the gateway IP, instrument IP and the subnet mask are all zeroes (e.g. “0.0.0.0”), the DCHP was not
successful in which case you may have to configure the calibrator’s Ethernet properties manually.
See your network administrator.
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To view the above properties listed in Table 7-5, press:
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5.6.1.1. Manually Configuring the Network IP Addresses
Here are several circumstances when you may need to manually set the Ethernet
configuration:
Your LAN is not running a DHCP software package,
The DHCP software is unable to initialize the calibrator’s interface;
You wish to configure the interface with a specific IP address, such as for a
permanent Ethernet connection..
Manually configuring the Ethernet interface requires that you first turn DHCP to OFF
before setting the INSTRUMENT IP, GATEWAY IP and SUBNET
MASK parameters:
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STEP 2: Configure the INSTRUMENT IP, GATEWAY IP and SUBNET MASK
addresses by pressing:
Internet Configuration Touchscreen Button Functions
From Step 1 above)
BUTTON
[0]
FUNCTION
Press to cycle through the range of numerals and
available characters (“0 – 9” & “ . ”)
<CH CH>
DEL
Moves the cursor one character left or right.
Deletes a character at the cursor location.
SETUP X.X
DHCP: OFF
Accepts the new setting and returns to the previous
menu.
ENTR
EXIT
SET> EDIT
EXIT
EXIT
Ignores the new setting and returns to the previous
menu.
Some buttons only appear when applicable.
SETUP X.X INST IP: 000.000.000.000
<SET SET> EDIT
Cursor
location is
indicated by
brackets
SETUP X.X INST IP: [0] 00.000.000
<CH CH>
DEL [0]
ENTR EXIT
SETUP X.X GATEWAY IP: 000.000.000.000
<SET SET> EDIT
EXIT
SETUP X.X GATEWAY IP: [0] 00.000.000
<CH CH> DEL [?] ENTR EXIT
SETUP X.X SUBNET MASK:255.255.255.0
<SET SET> EDIT
EXIT
EXIT
SETUP X.X SUBNET MASK:[2]55.255.255.0
<CH CH> DEL [?] ENTR EXIT
SETUP X.X TCP PORT 3000
<SET
EDIT
The PORT number needs to remain at 3000.
Do not change this setting unless instructed to by
Teledyne Instruments Customer Service personnel.
Pressing EXIT from
any of the above
display menus
causes the Ethernet
to reinitialize its
internal interface
firmware
SETUP X.X
INITIALIZING INET 0%
…
INITIALIZING INET 100%
SETUP X.X
INITIALIZATION SUCCEEDED
SETUP X.X
INITIALIZATION FAILED
Contact your IT
Network Administrator
SETUP X.X
ID INET
COMMUNICATIONS MENU
COM1
EXIT
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5.6.2. CHANGING THE CALIBRATOR’S HOSTNAME
The HOSTNAME is the name by which the calibrator appears on your network. The
default name for all Teledyne API T703 calibrators is T703. To change this name
(particularly if you have more than one T703 calibrator on your network), press.
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
SETUP X.X
ENTER PASSWORD:818
ENTR EXIT
O3
SEQ CFG CLK PASS MORE
EXIT
8
1
8
SETUP X.X
SECONDARY SETUP MENU
SETUP X.X
DHCP:ON
COMM VARS DIAG
EXIT
<SET SET> EDIT
EXIT
SETUP X.X
COMMUNICATIONS MENU
ID INET COM1 COM2
EXIT
Continue pressing SET> until ...
SETUP X.X
HOSTNAME: T703
<SET SET> EDIT
EXIT
SETUP X.X
HOSTNAME: T703
<CH CH> INS DEL
[?]
ENTR EXIT
BUTTON
FUNCTION
<CH
CH>
INS
Moves the cursor one character to the left.
Moves the cursor one character to the right.
Inserts a character before the cursor location.
Deletes a character at the cursor location.
DEL
Use these buttons to edit the HOSTNAME
Press this BUTTON to cycle through the range
of numerals and characters available for
insertion. 0-9, A-Z, space ’ ~ ! # $ % ^ & * (
) - _ = +[ ] { } < >\ | ; : , . / ?
[?]
Accepts the new setting and returns to the
previous menu.
SETUP X.X
HOSTNAME: T703
ENTR
EXIT
<CH CH> INS DEL
[?]
ENTR EXIT
Ignores the new setting and returns to the
previous menu.
ENTR accepts
the new setting
EXIT ignores the
new setting
Some buttons only appear when applicable.
SETUP X.X
INITIALIZING INET 0%
INITIALIZATION process proceeds
automatically
SETUP X.X
INITIALIZATION SUCCEEDED
SETUP X.X
INITIALIZATION FAILED
SETUP X.X
COMMUNICATIONS MENU
Contact your
IT Network
ID INET COM1 COM2
EXIT
Administrator
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5.7. APICOM REMOTE CONTROL PROGRAM
APICOM is an easy-to-use, yet powerful interface program that allows the user to access
and control any of Teledyne API’s main line of ambient and stack-gas instruments from
a remote connection through direct cable, modem or Ethernet. Running APICOM, a
user can:
Establish a link from a remote location to the T703 through direct cable connection
via RS-232 modem or Ethernet.
View the instrument’s front panel and remotely access all functions that could be
accessed when standing in front of the instrument.
Remotely edit system parameters and set points.
Download, view, graph and save data for predictive diagnostics or data analysis.
Retrieve, view, edit, save and upload DAS configurations.
Check on system parameters for trouble-shooting and quality control.
APICOM is very helpful for initial setup, data analysis, maintenance and trouble-
look and functionality of the instruments actual front panel
Figure 5-5:
APICOM Remote Control Program Interface
NOTE
APICOM is included free of cost with the calibrator and the latest versions can also be downloaded for
free at http://www.teledyne-api.com/software/apicom/.
The T703 calibrator is fully supported by APICOM revision 3.9.4 and later.
Instruments with the LEADS support option must run APICOM revision 4.0 and later
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6. CALIBRATION AND VERIFICATION
Basic electronic calibration of the Calibrator is performed at the factory. Normally there
is no need to perform this factory calibration in the field however, the performance of
several of the instrument’s key subsystems should be verified periodically and if
necessary adjusted. These subsystems are:
O3 Photometer: The O3 photometer performance should be periodically verified
against an external standard (see Section 6.1).
6.1. VERIFYING/CALIBRATING THE O3 PHOTOMETER
The accuracy of calibration gas produced by the T703 depends entirely on the accuracy
of the photometer; therefore, it is very important that the photometer is operating
properly and accurately.
The verification procedure can be performed using the instruments internal O3 generator
source of zero air (such as a Teledyne API’s Model 701 Zero Air Generator) is required.
6.1.1. SETUP FOR VERIFYING AND CALIBRATING THE O3 PHOTOMETER
Note
This operation requires an external reference photometer.
Figure 6-1:
Set up for Verifying Optional O3 Photometer Using Internal O3 Generator
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Figure 6-2:
Set up for Verifying Optional O3 Photometer Using an External O3 Generator
NOTE
The manifolds as shown in the above drawing are oriented to simplify the drawing.
All unused ports should be capped.
A Minimum of 1.1 LPM is required for the external zero air source
6.1.1.1. Calibration Manifold Exhaust/Vent Line
The manifold’s excess gas should be vented to a suitable vent outside of the room. This
vent should be of large enough internal diameter to avoid any appreciable pressure
drop, and it must be located sufficiently downstream of the output ports to assure that no
ambient air enters the manifold due to eddy currents or back diffusion.
NOTE
It is recommended that the calibration manifold’s exhaust vent have a minimum internal diameter of 3/8
inch and a maximum length of 3 meters (or 10 feet)
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6.1.2. VERIFYING O3 PHOTOMETER PERFORMANCE
To verify the performance of the internal photometer perform the following steps:
STANDBY
ACT=STANDBY
Make sure that the
calibrator is in
<TST TST> GEN STBY SEQ
SETUP
STANDBY mode
STANDBY
AUTO
SYSTEM RESET
STANDBY
GENERATE:ZERO
ZERO ENTR SETUP
Toggle to switch
to O3 generation
mode
STANDBY
0
GENERATE:0.0 PPB O3
PPB O3
0
4
0
0
ENTR EXIT
Toggle these
buttons to set the
target
Toggle to set the
units of measure.
concentration.
STANDBY
0
GENERATE:0.0 PPB O3
PPB O3
0
0
ENTR EXIT
GENERATE
ACT = 400 PPB O3
Wait
A MINIMUM
<SET SET> GEN STBY SEQ
SETUP
OF
10 MINUTES
or until the
ACT reading
settles down
Record O3 concentration readings displayed by the ACT
test function and by the external reference photometer
Repeat this procedure for as many points along the
performance range of the calibrator as required
NOTE
The readings recorded from the ACT test function and the external reference photometer should be
within 1% of each other.
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6.1.3. CALIBRATING THE O3 PHOTOMETER
The following procedure sets values held in the calibrator’s memory of for zero point
OFFSET and SLOPE.
6.1.3.1. Photometer Zero Calibration
To set the zero point offset for the T703 Photometric Calibrator’s photometer, press:
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6.1.4. O3 PHOTOMETER DARK CALIBRATION
The Dark Calibration Test turns off the Photometer UV Lamp and records any offset
signal level of the UV Detector-Preamp-Voltage to Frequency Converter circuitry. This
allows the instrument to compensate for any voltage levels inherent in the Photometer
detection circuit that might affect the output of the detector circuitry and therefore the
calculation of O3 concentration.
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
O3 GAS CONFIG
MODE ADJ PHOT
EXIT
SETUP X.X
O3 GAS CONFIG
BCAL DARK
EXIT
SETUP X.X
SETUP X.X
CALIBRATING DARK OFFSET
DARK CAL 34% COMPLETE
The DARK CAL procedure progresses automatically
until ...
Yes
DARK CAL
Successful?
No
SETUP X.X INVALID DARK CAL OFFS=XXXX.X MV
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6.1.5. O3 PHOTOMETER BACKPRESSURE COMPENSATION CALIBRATION
Any time there is a pneumatic configuration change, there is risk of impacting the
internal measure/reference pressure. To compensate for this, a backpressure
compensation calibration is required each time. Set the calibrator to generate ozone at
the flow rate intended for operation. While the instrument is generating ozone, go to the
SETUP>MORE>DIAG>929>…>BACKPRESSURE COMPENSATION menu and
press ENTR, shown in the following illustration, to initiate the calibration; the operation
will take a few minutes:
GENERATE
A-CAL=0.000 LPM
Make sure that the T700 is
generating ozone at the
intended operational flow rate.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
GAS SEQ CFG CLK PASS MORE
EXIT
EXIT
SETUP X.X
SECONDARY SETUP MENU
COMM FLOW VARS DIAG
SETUP X.X
ENTER PASSWORD
8
1
8
ENTR EXIT
Toggle these buttons to
enter the correct
PASSWORD - 929
DIAG
SIGNAL I/O
PREV NEXT
ENTR EXIT
Continue pressing NEXT until ...
DIAG
BACKPRESSURE COMPENSATION
PREV NEXT
ENTR
EXIT
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6.2. CALIBRATING THE O3 GENERATOR
The T703/T703U calibrator’s software includes a routine for automatically calibrating
the O3 generator. A calibration table of drive voltages stored in the calibrator’s memory
is the basis for this calibration. This table is used by the T703/T703U to set initial O3
generator drive settings.
6.2.1. O3 GENERATOR CALIBRATION TABLE
When the T703/T703U is operated in BENCH mode, this table is used for the initial
setting only. After a short delay time, the bench feedback control will take over and
control the O3 generator drive to servo in to the exact concentration requested.
When it is operated in CONST mode, the initial O3 generator drive setting will be set by
the calibration table and does not change.
When the T703/T703U is operated in REF mode, the calibration table sets the initial
drive setting and then the reference detector feedback takes over to maintain the lamp at
a constant intensity as measured by the reference detector. The target value for the
reference detector for a particular target concentration is also stored in this calibration
table.
The instrument software will interpolate between two values in the table when an
intermediate concentration is requested.
For each point included in the table used by the T703/T703U to calibrate the O3
generator the user can set a drive voltage and a dwell time for that point. Each point can
also be individually turned off or on.
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6.2.2. VIEWING O3 GENERATOR CALIBRATION POINTS
To view these calibration points, press:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
O3
PRIMARY SETUP MENU
SEQ CFG CLK PASS MORE
EXIT
EXIT
SETUP X.X
SECONDARY SETUP MENU
COMM VARS DIAG
SETUP X.X
ENTER PASSWORD
8
1
8
ENTR EXIT
Toggle to enter the correct
PASSWORD
DIAG
SIGNAL I/O
PREV NEXT
ENTR EXIT
Continue pressing NEXT until ...
DIAG
O3 GEN CALIBRATION
PREV NEXT
ENTR
EXIT
EXIT
DIAG
O3 GEN CALIBRATION
CAL PNTS
DIAG O3GEN
1) 500 MV, 5.0 MIN, ON
PREV NEXT
INS DEL EDIT PRNT EXIT
Toggle to move between
calibration points
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6.2.6. PERFORMING AN AUTOMATIC CALIBRATION OF THE O3
GENERATOR
To run the automatic O3 generator calibration program, press:
STANDBY
ACT =STANDBY
Make sure that the
calibrator is in standby
mode.
<TST TST> GEN STBY SEQ
SETUP X.X
O3
SEQ CFG CLK PASS
EXIT
EXIT
EXIT
SETUP X.X
COMM VARS
SETUP X.X
Toggle to enter the correct
DIAG
PREV
ENTR EXIT
Continue pressing
until ...
DIAG
PREV NEXT
EXIT
EXIT
DIAG
PNTS
DIAG
aborts
the calibration
Test runs automatically
DIAG
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6.3. CALIBRATING GAS PRESSURE SENSORS
The T703 Calibrator has two sensors that monitor the pressure of the gases flowing
through the instrument: a Regulator pressure sensor and a Photometer Sample Gas
pressure sensor. The T703U also has those two sensors plus one more: an O3 Generator
Regulator pressure sensor. The data collected by these sensors are used to compensate
the final concentration calculations for changes in atmospheric pressure and are stored in
the CPU’s memory as test functions:
Table 6-1: T703/T703U Pressure Sensors
ASSOCIATED
TEST FUNCTION
PRESSURE MONITOR
MEASUREMENT POINT
SENSOR
UNITS
PSIG
Regulator Pressure Sensor
Capped fitting on backside of regulator
REG PRESSURE
PHOTO SPRESS
O3 PRES
Use monitor to measure ambient
atmospheric pressure at the calibrator’s
location.
Photometer Sample Gas
Pressure Sensor
IN-HG-A
PSIG
(T703U only) O3 Generator
Regulator Pressure Sensor
Capped fitting on O3 Generator Regulator
assembly. See Figure 6-6.
6.3.1. GAS PRESSURE SENSOR CALIBRATION SET UP
The procedures described in this section require an independent, calibrated pressure
Figure 6-3:
Pressure Calibration Monitor Point – T703
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Figure 6-4:
Pressure Calibration Monitor Points – T703U
Attach Pressure
Monitor Here
Pressure
Regulator
Figure 6-5:
Pressure Regulator Monitor Connection Point (T703 and T703U)
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Figure 6-6:
O3 Regulator Pressure Monitor Point (T703U only)
6.3.2. CALIBRATING THE PRESSURE SENSORS
The following procedure requires a pump. If your unit does not have the internal pump
option, temporarily connect an external pump.
1. Turn off the calibrator and open the top cover.
2. Connect a pressure meter to the Regulator Pressure measurement fitting (see
4. Turn on the calibrator and perform the following steps:
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5. Turn OFF the calibrator, remove the pressure monitor, replace the cap on the
pressure measurement fitting.
6.4. GAS FLOW CALIBRATION
The T703/T703U has two gas flow characteristics that affect its performance: the flow
of gas through the sample chamber of the instrument’s photometer and the total gas flow
being output. While both are stored in the calibrator’s memory and used to compensate
the final concentration calculations for changes in atmospheric pressure, they are
calculated quite differently:
CALCULATING THE PHOTOMETER SAMPLE GAS FLOW RATE
This flow rate is measured directly by a flow sensor located pressure / flow sensor PCA.
A slope factor, stored in the calibrator’s memory the last time a PHOTO FLOW
from that sensor.
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The calculated photometer sample gas flow value is viewable on the instrument’s front
panel using the PHOTO FLOW test function and can be output via the TEST
CHANNEL output using the SAMPLE FLOW function.
CALCULATING THE OUTPUT GAS FLOW RATE
This flow rate is calculated by applying a separate slope factor, also stored in the
calibrator’s memory, to an interpolated valued based on the following table of internal
gas pressure as measured by the O3 gas input pressure sensor. The output-flow slope
value is determined by performing an OUPUT FLOW calibration operation (see
Table 6-2: T703/T703U Gas Pressure to Output Flow conversion Table
T703 REGULATOR PRESSURE TO OUTPUT FLOW
PSIG
0
LPM
0.000
0.676
1.214
1.659
2.071
2.463
2.816
3.178
3.536
3.851
4.166
5.744
7.282
8.755
10.254
11.695
13.146
1
2
3
4
5
6
7
8
9
10
15
20
25
30
35
40
The calculated OUTPUT FLOW value is viewable on the instrument’s front panel
using the OUTPUT FLOW test function and can be output via the T703/T703U’s
TEST CHANNEL using the OUTPUT FLOW function.
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6.4.1. CALIBRATING THE PHOTOMETER’S SAMPLE GAS FLOW
NOTE
The procedure described in this section requires an independent, calibrated gas flow meter/monitor be
connected to the EXHAUST fitting on the back of the T703/T703U.
During the PHOTO FLOW calibration, the T703/T703U software automatically turns
the DC pump downstream from the photometer ON. PHOTO FLOW calibration is
followed by ACTUAL OUTPUT FLOW (output gas flow) calibration (Section 6.4.2).
To perform a PHOTO FLOW calibration, press:
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6.4.2. CALIBRATING THE OUTPUT GAS FLOW
6.4.2.1. Output Gas Flow Set Up
The procedure described in this section requires an independent, calibrated flow
meter/monitor and the following set up:
Figure 6-7:
Output Flow Calibration Monitor Point – T703
Figure 6-8:
Output Flow Calibration Monitor Point – T703U
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6.4.2.2. Performing an Output Gas Flow Calibration
During the PHOTO FLOW calibration, the T703/T703U software automatically turns
the DC pump downstream from the photometer OFF and the AC dry air pump ON.
Once the PHOTO FLOW has been calibrated (Section 8.4.1 – menu sequence included
here for continuity), the next step is to adjust the “ACTUAL PHOTO FLOW” values to
match the flow measured by the external flow meter in order to calibrate the output gas
flow (ACTUAL OUTPUT FLOW), as follows:
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Maintenance Schedule & Procedures
7. MAINTENANCE SCHEDULE & PROCEDURES
Predictive diagnostic functions including failure warnings and alarms built into the
calibrator’s firmware allow the user to determine when repairs are necessary without
performing painstaking preventative maintenance procedures.
For the most part, the T703 calibrator is maintenance free, there are, however, a minimal
number of simple procedures that when performed regularly will ensure that the T703
photometer continues to operate accurately and reliably over its the lifetime.
7.1. MAINTENANCE SCHEDULE
note that in certain environments (i.e. dusty, very high ambient pollutant levels) some
maintenance procedures may need to be performed more often than shown.
NOTE
following certain of the maintenance procedure listed below.
CAUTION
RISK OF ELECTRICAL SHOCK. DISCONNECT POWER BEFORE PERFORMING ANY OF
THE FOLLOWING OPERATIONS THAT REQUIRE ENTRY INTO THE INTERIOR OF THE
INSTRUMENT.
NOTE
THE OPERATIONS OUTLINED IN THIS CHAPTER ARE TO BE PERFORMED BY
QUALIFIED MAINTENANCE PERSONNEL ONLY.
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Table 7-1: T703 Maintenance Schedule
Maintenance Schedule & Procedures
Date Performed
Cal
Check
Req’d.
Manual
Section
Item
Action
Freq
Weekly or after
any Maintenance
or Repair
Verify Test
Functions
Record and
analyze
No
3.4.4
Photometer
Pump
Diaphragm
No Replacement Required. Under Normal Circumstances the Pumps Will Last the Lifetime of the Instrument.
Dry Air
Pump
Diaphragm
Replace
Annually
Yes
7.4
7.3
Cleaning of the Photometer Absorption Tube Should Not Be Required
as long as
Inspect
- - -
Clean
Absorption
Tube
Yes after
cleaning
As Needed
ONLY CLEAN, DRY, PARTICULATE FREE
Zero Air (Diluent Gas)
is used with the T703 Calibrator
Annually or after
any Maintenance
or Repair
Perform
Leak Check
Verify Leak
Tight
N0
7.2.1
- - -
Pneumatic
lines
Examine
and clean
Yes if
cleaned
As needed
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7.2. PERFORMING LEAK CHECKS
procedure for performing a leak check.
7.2.1. PRESSURE LEAK CHECK
The following pressure leak check instructions can be used with either a leak checker
(similar to the Teledyne API’s part number 01960, which contains a small pump, shut-
off valve and pressure gauge) or a tank of pressurized gas, with the two-stage regulator
adjusted to ≤ 15 psi, a shutoff valve and pressure gauge may be used.
CAUTION
Once the fittings have been wetted with soap solution, do not apply a vacuum as this will
cause soap solution to be drawn into the instrument, contaminating it.
DO NOT EXCEED 15 PSI PRESSURE.
1. Turn OFF power to the calibrator.
2. Remove the instrument cover
3. Install a leak checker or tank of gas as described above on the “DRY AIR IN” port at
the rear panel.
4. Install caps on the Internal Vent and on the following rear panel fittings:
Exhaust
Vent
Zero Air In
Both CALGAS OUT fittings
Due to normal internal leakage that occurs with pumps, they will need to be bypassed
for the leak check:
5. Locate the dry air pump.
6. Disconnect the two fittings on the dry air pump and install a union fitting in place of
the pump.
7. Locate the photometer pump.
8. Disconnect the two fittings on the photometer pump and install a union fitting in
place of the pump.
9. Pressurize the calibrator with the leak checker or with the tank – without exceeding
15 psi pressure, allowing enough time to pressurize the instrument fully.
10. Check each fitting with soap bubble solution, and look for bubbles (do not reapply
vacuum as doing so will draw soap solution into the instrument and contaminate it).
11. Once the leak has been located and repaired, remove any residual soap solution
from the instrument interior with a clean, absorbent cloth.
The leak-down rate should be < 1 in-Hg (0.4 psi) in 5 minutes after the pressure is shut
off.
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Figure 7-1:
T703 Pneumatic setup for performing Pressure Leak Checks
Figure 7-2:
T703U Pneumatic Setup for Performing Pressure Leak Checks
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Maintenance Schedule & Procedures
7.3. CLEANING OR REPLACING THE ABSORPTION TUBE
NOTE:
Although this procedure should never be needed as long as the user is careful only to supply the
photometer with clean, dry and particulate free zero air, it is included here for those rare occasions
when cleaning or replacing the absorption tube may be required.
1. Remove the center cover from the optical bench.
2. Unclip the sample thermistor from the tube.
3. Loosen the two screws on the round tube retainers at either end of the tube.
4. Using both hands, carefully rotate the tube to free it.
5. Slide the tube towards the lamp housing.
The front of the tube can now be slid past the detector block and out of the
instrument.
CAUTION
DO NOT CAUSE THE TUBE TO BIND AGAINST THE METAL HOUSINGS.
THE TUBE MAY BREAK AND CAUSE SERIOUS INJURY.
6. Clean the tube with Distilled or de-ionized water by running a swab from end-to-end.
7. Air-dry the tube.
8. Check the cleaning job by looking down the bore of the tube.
It should be free from dirt and lint.
9. Inspect the o-rings that seal the ends of the optical tube (these o-rings may stay
seated in the manifolds when the tube is removed.)
If there is any noticeable damage to these o-rings, they should be replaced.
10. Re-assemble the tube into the lamp housing and perform an AUTO LEAK CHECK
on the instrument.
NOTE:
It is important for proper optical alignment that the tube be pushed all the way towards the front of the
optical bench when it is re-assembled.
This will ensure that the tube is assembled with the forward end against the stop inside the detector
manifold.
7.4. REBUILDING THE DRY AIR PUMP
The diaphragm in the sample pump will periodically wear out and require replacement.
A sample rebuild kit is available. See Appendix B of this manual for the part number of
the pump rebuild kit. Instructions and diagrams are included with the kit.
Always perform a Flow and Leak Check after rebuilding the Sample Pump.
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7.5. PHOTOMETER UV SOURCE LAMP ADJUSTMENT
This procedure details the steps for adjustment of the UV source lamp in the optical
bench assembly. This procedure should be done whenever the PHOTO REFERENCE
test function value drops below 3000 mV.
1. Make sure the instrument is warmed-up and has been running for at least 15
minutes before proceeding.
2. Remove the cover from the instrument.
4. Locate the UV DETECTOR GAIN ADJUST POT on the photometer assembly (see
5. Perform the following procedure:
STANDBY
ACT =STANDBY
Make sure that the
instrument is in Standby
mode.
<TST TST> GEN STBY SEQ
SETUP
SETUP X.X
PRIMARY SETUP MENU
O3
SEQ CFG CLK PASS MORE
EXIT
SETUP X.X
SECONDARY SETUP MENU
EXIT
COMM VARS DIAG
SETUP X.X
ENTER PASSWORD
8
1
8
ENTR EXIT
Toggle these buttons to
enter the correct
PASSWORD
DIAG
SIGNAL I/O
PREV NEXT
ENTR EXIT
DIAG I/O
1) CONTROL_IN_2=OFF
PREV NEXT JUMP
PRNT EXIT
DIAG I/O
JUMP TO:1
1
7
ENTR EXIT
Toggle these buttons to
show the ID number for
the desired signal
(see Appendix A)
DIAG
17) PHOTO_DET = 3342.2 MV
PRNT EXIT
PREV NEXT
Additional adjustment can be made by physically
rotating the lamp in it’s housing.
To do this, slightly loosen the UV lamp
setscrew.
Using an insulated pot adjustment tool, Turn the UV
DETECTOR GAIN ADJUSTMENT POT until the value of
PHOTO_DET is as close as possible to 4600.0 MV.
Next, slowly rotate the lamp up to ¼ turn in
either direction while watching the
PHOTO_DET signal.
Once the optimum lamp position is
determined, re-tighten the lamp
setscrew
If a minimum reading of 3500.0 mV can not be reached,
the lamp must be replaced.
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6. Replace the cover on the instrument.
Figure 7-3:
Photometer – Location of UV Detector Gain Adjustment & UV Lamp Set Screw
7.6. PHOTOMETER UV SOURCE LAMP REPLACEMENT
This procedure details the steps for replacement of the UV source lamp in the optical
bench assembly. This procedure should be done whenever the lamp can no longer be
adjusted as described in Section 10.2.3.
1. Turn the instrument off.
2. Remove the cover from the instrument.
5. Unplug the lamp cable from the power supply connector on the side of the optical
bench.
6. Slightly loosen (do not remove) the UV lamp setscrew and pull the lamp from its
housing.
NOTE
The UV lamp contains mercury (Hg), which is considered hazardous waste. The lamp should be
disposed of in accordance with local regulations regarding waste containing mercury.
7. Install the new lamp in the housing, pushing it all the way in. Leave the UV lamp
setscrew loose for now.
8. Turn the instrument back on and allow it to warm up for at least 15 minutes.
value. The pot should click softly when the limit is reached.
10. Perform the UV Lamp Adjustment procedure described in Section 7.5, with the
following exceptions:
11. Slowly rotate the lamp in its housing (up to ¼ turn in either direction) until a
MAXIMUM value (or 4600 mVDC) is observed.
Make sure the lamp is pushed all the way into the housing while performing this
rotation.
If the PHOTO_DET will not drop below 5000 mV while performing this rotation,
contact T-API Technical Support for assistance.
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12. Once a lamp position is found that corresponds to a maximum observed value for
PHOTO_DET, tighten the lamp setscrew at the approximate maximum value
observed.
If the value of PHOTO_DET is not within the range of 4400 – 4600 mV, adjust it
accordingly.
13. Replace the cover on the instrument.
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7.7. ADJUSTMENT OR REPLACEMENT OF OZONE GENERATOR
UV LAMP
This procedure details the steps for replacement and initial adjustment of the ozone
generator lamp. If you are adjusting an existing lamp, skip to Step 8.
1. Turn off the instrument.
2. Remove the cover from the instrument.
UV Lamp
Set Screws
Lamp
O-ring
O3 Generator
Body
Figure 7-4:
O3 Generator Temperature Thermistor and DC Heater Locations
4. Remove the two setscrews on the top of the O3 generator and gently pull out the old
lamp.
5. Inspect the o-ring beneath the nut and replace if damaged.
6. Install the new lamp in O3 generator housing.
Do not fully tighten the setscrews.
The lamp should be able to be rotated in the assembly by grasping the lamp
cable.
7. Turn on instrument and allow it to stabilize for at least 20 minutes.
8. Locate the O3 generator reference detector adjustment potentiometer.
O3 Generator
Body
Adjustment
Pot
O3
Generator
Reference
Detector
PCA
Figure 7-5:
Location of O3 Generator Reference Detector Adjustment Pot
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9. Perform the following procedure:
10. Tighten the two set -screws.
11. Replace the calibrator’s cover
12. Perform an auto-leak check (See Section 10.2.1).
13. Calibrate the Ozone Generator. (see Section 6.2)
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General Troubleshooting & Service
8. GENERAL TROUBLESHOOTING & SERVICE
This section contains a variety of methods for identifying and solving performance
problems with the calibrator.
NOTE
The operations outlined in this chapter must be performed by qualified maintenance
personnel only.
WARNING
Risk of electrical shock. Some operations need to be carried out with the
instrument open and running.
Exercise caution to avoid electrical shocks and electrostatic or mechanical
damage to the calibrator.
Do not drop tools into the calibrator or leave those after your procedures.
Do not shorten or touch electric connections with metallic tools while operating
inside the calibrator.
Use common sense when operating inside a running calibrator.
8.1. GENERAL TROUBLESHOOTING
The T703 Photometric Calibrator has been designed so that problems can be rapidly
detected, evaluated and repaired. During operation, it continuously performs diagnostic
tests and provides the ability to evaluate its key operating parameters without disturbing
monitoring operations.
A systematic approach to troubleshooting will generally consist of the following five
steps:
1. Note any warning messages and take corrective action as necessary.
2. Examine the values of all TEST functions and compare them to factory values.
Note any major deviations from the factory values and take corrective action.
3. Use the internal electronic status LEDs to determine whether the electronic
communication channels are operating properly.
Verify that the DC power supplies are operating properly by checking the
voltage test points on the relay PCA.
Note that the calibrator’s DC power wiring is color-coded and these colors
match the color of the corresponding test points on the relay PCA.
4. Suspect a leak first!
Technical Support data indicate that the majority of all problems are eventually
traced to leaks in the internal pneumatics of the calibrator or the diluent gas and
source gases delivery systems.
Check for gas flow problems such as clogged or blocked internal/external gas
lines, damaged seals, punctured gas lines, a damaged / malfunctioning pumps,
etc.
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functions are working (power supplies, CPU, relay PCA, keyboard, PMT cooler,
etc.).
calibrator.
See the wiring interconnect diagram and interconnect list in Appendix D.
8.1.1. FAULT DIAGNOSIS WITH WARNING MESSAGES
The most common and/or serious instrument failures will result in a warning message
meaning and recommended corrective action.
It should be noted that more than two or three warning messages occurring at the same
time is often an indication that some fundamental sub-system (power supply, relay PCA,
motherboard) has failed rather than an indication of the specific failures referenced by
the warnings. In this case, it is recommended that proper operation of power supplies
If a Warning Message is active, the FAULT LED flashes, the Param field displays the
Warning message, and the CLR button appears/becomes active (press to clear Warning
message).However, if there is more than one warning in queue or if you are in the TEST
menu and have not yet cleared the message, the MSG button displays. The following
display/touchscreen examples provide an illustration of each:
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Top: the CLR button is available to clear the warning message displayed in the Param field.
Bottom: the MSG button indicates that at least one warning message has not yet been cleared.
The calibrator also alerts the user via the Serial I/O COM port(s) and causes the FAULT
LED on the front panel to blink.
To view or clear the various warning messages press:
STANDBY
TEST
SYSTEM RESET
Suppresses the
warning messages
GEN STBY SEQ MSG CLR SETUP
STANDBY
SYSTEM RESET
MSG returns the active
warnings to the message
field.
TEST
GEN STBY SEQ MSG CLR SETUP
STANDBY
SYSTEM RESET
Press CLR to clear the current
TEST
GEN STBY SEQ MSG CLR SETUP
message.
If more than one warning is
active, the next message will take
its place.
SYSTEM
TEST
ANALOG CAL WARNING
CLR SETUP
Once the last warning has
been cleared, the MESSAGE
FIELD will return to displaying
the currently selected TEST
FUNCTION and value.
NOTE:
If a warning message persists after
several attempts to clear it, the message
may indicate a real problem and not an
artifact of the warm-up period
STANDBY
ACT =STANDBY
<TST TST> GEN STBY SEQ
SETUP
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Table 8-1: Front Panel Warning Messages
WARNING
FAULT CONDITION
POSSIBLE CAUSES
Configuration and Calibration
data reset to original Factory
state.
- Failed Disk on Chip
- User has erased configuration data
CONFIG INITIALIZED
- Failed Disk-on-Module.
- User cleared data.
- I2C has failed
Data Storage in DAS was
erased.
DATA INITIALIZED
The CPU is unable to
communicate with either the
O3 generator or photometer
lamp I2C driver chip.
LAMP DRIVER WARN
- No IZS option installed, instrument improperly configured
- O3 generator heater
IZS Ozone Generator Temp is
outside of control range of
48C 3C.
- O3 generator temperature sensor
- Relay controlling the O3 generator heater
- Entire Relay PCA
O3 GEN LAMP TEMP
WARNING
- I2C Bus
Possible failure of:
- O3 generator UV Lamp
The O3 generator’s reference
detector output has dropped
below 50 mV.1
O3 GEN REFERENCE
WARNING1
- O3 generator reference detector
- O3 generator lamp power supply
- I2C bus
The photometer pump failed to
turn on within the specified
timeout period (default = 30
sec.).
- Failed Pump
- Problem with Relay PCA
- 12 VDC power supply problem
O3 PUMP WARNING1
Possible failure of:
- Bench lamp heater
- Bench lamp temperature sensor
- Relay controlling the bench heater
- Entire Relay PCA
The photometer lamp temp is
PHOTO LAMP TEMP
WARNING
< 51C or >61C.
- I2C Bus
- Hot Lamp
Value output during the
Photometer’s reference cycle
changes from measurement to
measurement more than 25%
of the time.
- Faulty UV source lamp
- Noisy UV detector
- Faulty UV lamp power supply
- Faulty ± 15 VDC power supply
PHOTO LAMP
STABILITY WARNING
Possible failure of:
- UV Lamp
- UV Photo-Detector Preamp
Occurs when Ref is
<2500 mVDC
or >4950 mVDC.
PHOTO REFERENCE
WARNING
- THIS WARNING only appears on Serial I/O COM Port(s)
Front Panel Display will be frozen, blank or will not
respond.
Motherboard not detected on
power up.
REAR BOARD NOT DET
RELAY BOARD WARN
- Failure of Motherboard
- I2C Bus failure
The CPU cannot communicate
with the Relay PCA.
- Failed relay PCA
- Loose connectors/wiring
- This message occurs at power on.
- If it is confirmed that power has not been interrupted:
- Failed +5 VDC power
SYSTEM RESET
The computer has rebooted.
- Fatal error caused software to restart
- Loose connector/wiring
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8.1.2. FAULT DIAGNOSIS WITH TEST FUNCTIONS
In addition to being useful predictive diagnostic tools, the test functions viewable from
the calibrator’s front panel can be used to isolate and identify many operational
problems when combined with a thorough understanding of the calibrator’s Theory of
Operation (see Section 9).
The acceptable ranges for these test functions are listed in the “Nominal Range” column
of the calibrator Final Test and Validation Data Sheet shipped with the instrument.
Values outside these acceptable ranges indicate a failure of one or more of the
calibrator’s subsystems. Functions whose values are still within the acceptable range
but have significantly changed from the measurement recorded on the factory data sheet
may also indicate a failure.
A worksheet has been provided in Appendix C to assist in recording the value of these
Test Functions.
Table 8-2 contains some of the more common causes for these values to be out of range.
Table 8-2: Test Functions - Indicated Failures
TEST FUNCTION
DIAGNOSTIC RELEVANCE AND CAUSES OF FAULT CONDITIONS.
O3 GEN REF1
Gas flow problems directly affect the concentration accuracy of the O3 calibration gases.
This number is computed using data from the calibrator’s
OUTPUT FLOW
O3 GEN DRIVE
- Check for Gas Flow problems.
- Check the pressure regulator
Check the O3 generator heater and temperature sensors
Incorrect Lamp temperature can affect the efficiency and durability of the O3 generators UV
lamp.
O3 LAMP TEMP
REG PRESSURE
If the Box Temperature is out of range, make sure that the:
Box Temperature typically runs ~7C warmer than ambient temperature.
- The Exhaust-Fan is running
BOX TEMP
- The there is sufficient open space to the side and rear of instrument to allow adequate
ventilation.
If the value displayed is too high the UV Source has become brighter. Adjust the variable
gain potentiometer on the UV Preamp Board in the optical bench.
If the value displayed is too low:
- < 100mV – Bad UV lamp or UV lamp power supply.
- < 2000mV – Lamp output has dropped, adjust UV Preamp Board or replace lamp.
PHOTO MEASURE
&
If the value displayed is constantly changing:
- Bad UV lamp.
PHOTO REFERENCE
- Defective UV lamp power supply.
- Failed I2C Bus.
If the PHOTO REFERENCE value changes by more than 10mV between zero and
span gas:
- Defective/leaking switching valve.
Gas flow problems directly affect the accuracy of the photometer measurements and
therefore the concentration accuracy of cal gas mixtures involving O3 and GPT mixtures.
PHOTO FLOW
- Check for Gas Flow problems.
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TEST FUNCTION
DIAGNOSTIC RELEVANCE AND CAUSES OF FAULT CONDITIONS.
Poor photometer temp control can cause instrument noise, stability and drift. Temperatures
outside of the specified range or oscillating temperatures are cause for concern.
PHOTO LAMP TEMP
The pressure of the gas in the photometer’s sample chamber is used to calculate the
concentration of O3 in the gas stream. Incorrect sample pressure can cause inaccurate
readings.
PHOTO SPRESS
The temperature of the gas in the photometer’s sample chamber is used to calculate the
concentration of O3 in the gas stream. Incorrect sample temperature can cause inaccurate
readings.
Possible causes of faults are:
- Bad bench lamp heater
PHOTO STEMP
- Failed sample temperature sensor
- Failed relay controlling the bench heater
- Failed Relay PCA
- I2C Bus malfunction
- Hot Lamp
Values outside range indicate:
Contamination of the Zero Air or Span Gas supply.
Instrument is miss-calibrated.
Blocked Gas Flow.
PHOTO SLOPE
Faulty Sample Pressure Sensor or circuitry.
Bad/incorrect Span Gas concentration.
Values outside range indicate:
Contamination of the Zero Air supply.
Time of Day clock is too fast or slow.
To adjust see Section 4.7.2.
Battery in clock chip on CPU board may be dead.
PHOTO OFFSET
TIME
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8.1.3. USING THE DIAGNOSTIC SIGNAL I/O FUNCTION
The Signal I/O parameters found under the DIAG Menu combined with a thorough
understanding of the instruments Theory of Operation (found in Section 9) are useful for
troubleshooting in three ways:
The technician can view the raw, unprocessed signal level of the calibrator’s critical
inputs and outputs.
Many of the components and functions that are normally under algorithmic control
of the CPU can be manually exercised.
The technician can directly control the signal level Analog and Digital Output
signals.
This allows the technician to observe systematically the effect of directly controlling
the Signal I/O menu to view the raw voltage of an input signal or to control the state of
an output voltage or control signal. The specific parameter will vary depending on the
situation.
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8.2. USING THE ANALOG OUTPUT TEST CHANNEL
The signals available for output over the analog output channel can also be used as
selecting a function.
Table 8-3: Test Channel Outputs as Diagnostic Tools
TEST
CHANNEL
FULL
SCALE
CAUSES OF EXTREMELY
HIGH / LOW READINGS
DESCRIPTION
ZERO
NONE
TEST CHANNEL IS TURNED OFF
If the value displayed is:
-
>5000 mV: The UV source has become brighter. Adjust the
UV Detector Gain potentiometer.
The raw output of the
photometer during its
measure cycle
-
-
< 100mV – Bad UV lamp or UV lamp power supply.
O3 PHOTO
MEAS
0 mV
5000 mV*
< 2000mV – Lamp output has dropped, adjust UV Preamp
Board or replace lamp.
If the value displayed is constantly changing:
-
-
-
Bad UV lamp.
Defective UV lamp power supply.
Failed I2C Bus.
The raw output of the
photometer during its
reference cycle
O3 PHOTO
REF
0 mV
5000 mV
If the PHOTO REFERENCE value changes by more than
10mV between zero and span gas:
-
Defective/leaking M/R switching valve.
The raw output of the
O3 generator’s
reference detector
O3 GEN
REF
Possible causes of faults are the same as OUTPUT FLOW from
0 mV
5000 mV
Output flow rate
(computed from
regulator pressure).
OUTPUT
FLOW
Possible causes of faults are the same as O3 GEN REFERENCE
0 LPM
6.000 LPM
The pressure of gas in
the photometer
absorption tube
SAMPLE
PRESSURE
0 In-Hg-A
0 cm3/min
0 C
40 In-Hg-A
1000 cc/m
70 C
Check for Gas Flow problems.
Check for Gas Flow problems.
SAMPLE
FLOW
The gas flow rate
through the photometer
The temperature of gas
in the photometer
absorption tube
SAMPLE
TEMP
Possible causes of faults are the same as PHOTO STEMP from
Possible failure of:
-
-
-
-
-
-
Bench lamp heater
Bench lamp temperature sensor
Relay controlling the bench heater
Entire Relay PCA
PHOTO
LAMP
TEMP
The temperature of the
photometer UV lamp
0 CC
70 C
I2C Bus
Hot” Lamp
The temperature of the
O3 generator’s UV
lamp
O3 LAMP
TEMP
0 mV
5000 mV
The temperature inside
the chassis (same as
BOX TEMP)
CHASSIS
TEMP
0 C
70 C
-
-
-
-
I2C Bus malfunction
Gas flow problem through the photometer.
Electronic failure of the photometer subsystems
The current
Failure or pressure / temperature sensors associated with the
photometer
O3 PHOTO
CONC
concentration of O3
being measured by the
photometer.
- - -
-
-
-
-
Bad/incorrect Span Gas concentration
Contamination of the Zero Air supply.
Malfunction of the O3 generator.
Internal A/D converter problem
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8.3. USING THE INTERNAL ELECTRONIC STATUS LEDS
Several LEDs are located inside the instrument to assist in determining if the calibrators
CPU, I2C bus and Relay PCA are functioning properly.
8.3.1. CPU STATUS INDICATOR
DS5, a red LED, that is located on upper portion of the motherboard, just to the right of
the CPU board, flashes when the CPU is running the main program loop. After power-
up, approximately 30 – 60 seconds, DS5 should flash on and off. If characters are
written to the front panel display but DS5 does not flash then the program files have
become corrupted, contact Technical Support because it may be possible to recover
operation of the calibrator. If after 30 – 60 seconds neither DS5 is flashing and no
characters have been written to the front panel display then the CPU is bad and must be
replaced.
Motherboard
CPU Status LED
Figure 8-2:
CPU Status Indicator
8.3.2. RELAY PCA STATUS LEDS
There are sixteen status LEDs on the Relay PCA. Not all are used on this model.
8.3.2.1. I2C Bus Watchdog Status LEDs
Table 8-4: Relay PCA Watchdog LED Failure Indications
LED
Function
I2C bus Health
Fault Status
Indicated Failure(s)
Failed/Halted CPU
D1
Continuously ON
(Red)
(Watchdog Circuit) or
Continuously OFF
Faulty Motherboard or Relay PCA
Faulty Connectors/Wiring between Motherboard or Relay
PCA
Failed/Faulty +5 VDC Power Supply (PS1)
If D1 is blinking, then the other LEDs can be used in conjunction with DIAG Menu
Signal I/O to identify hardware failures of the relays and switches on the Relay.
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8.3.2.2. Troubleshooting with Relay Board Status LEDs
D9 (Green) – O3 Pump
T703U only:
D10 (Green)
O3 Divert Valve
D8 (Green) – Zero Air Shutoff Valve Option
D7 (Green) – Photometer Meas/Ref Valve
D2 (Yellow) – Zero Air Pump Option
T703U only: D11 (Green) – O3 Generator Valve
D15 (Green) - Photometer Lamp Heater
D16 (Green) – O3 Generator Lamp Heater
D1 (RED)
Watchdog
Indicator
Figure 8-3:
INDICATES
Relay PCA Status LEDs Used for Troubleshooting
Table 8-5: Relay PCA Status LED Failure Indications
LED
ACTIVATED BY
DIAGNOSTIC TECHNIQUE
Pump should start /stop. If not:
Failed pump
Failed AC Relay on Relay PCA
D2
Yello
w
AC- powered Zero Air Pump
(option) status
ZERO_AIR_PUMP
Failed Relay PCA
Faulty AC Power Supply (PS2)
Faulty Connectors/Wiring
Valve should audibly change states. If not:
Failed Valve
Failed Relay Drive IC on Relay PCA
Failed Relay PCA
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring
Pump should start /stop. If not:
Failed pump
D7
Green
Photometer Meas/Ref Valve status
Zero Air Shutoff Valve (option) status
PHOTO_REF_VALVE
ZA_SHUTOFF_VALVE
D8
Green
Failed Drive IC on Relay PCA
Failed Relay PCA
D9
Green
DC-powered O3 Pump status
O3_PUMP_ON
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring
Valve should audibly change states. If not:
Failed Valve
Failed Relay Drive IC on Relay PCA
Failed Relay PCA
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring
Voltage displayed should change. If not:
Failed Heater
Faulty Temperature Sensor
Failed AC Relay
D10
T703U Divert Valve status
O3_DIVERT_VALVE
O3_GEN_VALVE
Green
D11
T703U O3 Generator Valve status
Green
D15
Green
Photometer Heater status
PHOTO_LAMP_HEATER
O3_GEN_HEATER
D16
Green
Status of O3 Generator Heater status
Faulty Connectors/Wiring
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8.4. SUBSYSTEM CHECKOUT
The preceding sections of this manual discussed a variety of methods for identifying
possible sources of failures or performance problems within the T703 calibrator. In
most cases, this includes a list of possible components or subsystems that might be the
source of the problem. This section describes how to check individual components or
subsystems to determine if which is actually the cause of the problem being investigated.
8.4.1. VERIFY SUBSYSTEM CALIBRATION
A good first step when troubleshooting the operation of the T703 calibrator is to verify
that its major subsystems are properly calibrated. These are:
Gas pressure calibration (see Section 6.3).
Photometer calibration (see Section 6.1).
O3 generator calibration (see Section 6.2).
8.4.2. AC MAIN POWER
The T703 calibrator’s electronic systems will operate with any of the specified power
regimes. As long as system is connected to 100-120 VAC or 220-240 VAC at either 50
or 60 Hz it will turn on and after about 30 seconds show a front panel display.
Internally, the status LEDs located on the Relay PCA, motherboard and CPU should
turn on as soon as the power is supplied.
If they do not, check the circuit breaker built into the ON/OFF switch on the
instruments front panel
CAUTION
SHOULD THE AC POWER CIRCUIT BREAKER TRIP, INVESTIGATE AND CORRECT
THE CONDITION CAUSING THIS SITUATION BEFORE TURNING THE
CALIBRATOR BACK ON.
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8.4.3. DC POWER SUPPLY
If you have determined that the calibrator’s AC mains power is working, but the unit is
still not operating properly, there may be a problem with one of the instrument’s
switching power supplies. The supplies can have two faults, namely no DC output, and
noisy output.
To assist tracing DC Power Supply problems, the wiring used to connect the various
printed circuit assemblies and DC Powered components and the associated test points on
the relay PCA follow a standard color-coding scheme as defined in the following table.
TP1 TP2 TP3 TP4 TP5 TP6 TP7
DGND +5V AGND +15V -15V +12R 12V
Figure 8-4:
Location of DC Power Test Points on Relay PCA
Table 8-6: DC Power Test Point and Wiring Color Codes
NAME
Dgnd
+5V
TEST POINT#
TP AND WIRE COLOR
1
2
3
4
5
6
7
Black
Red
Agnd
+15V
-15V
Green
Blue
Yellow
Purple
Orange
+12R
+12V
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A voltmeter should be used to verify that the DC voltages are correct per the values in
the table below, and an oscilloscope, in AC mode, with band limiting turned on, can be
used to evaluate if the supplies are producing excessive noise (> 100 mV p-p).
Table 8-7: DC Power Supply Acceptable Levels
CHECK RELAY PCA TEST POINTS
POWER
SUPPLY
ASSY
VOLTAGE
MIN V
MAX V
FROM TEST POINT
TO TEST POINT
NAME
Dgnd
#
1
3
3
3
1
6
6
NAME
+5
#
2
PS1
PS1
PS1
PS1
PS1
PS2
PS2
+5
+15
4.8
5.25
16V
Agnd
+15
4
13.5
-15
Agnd
-15V
5
-14V
-0.05
-0.05
11.75
-0.05
-16V
0.05
0.05
12.5
0.05
Agnd
Chassis
+12
Agnd
Dgnd
Chassis
+12V
Dgnd
1
Dgnd
N/A
7
+12V Ret
+12V Ret
+12 V ret
1
8.4.4. I2C BUS
Operation of the I2C bus can be verified by observing the behavior of D1 on the relay
PCA & D2 on the Valve Driver PCA. Assuming that the DC power supplies are
operating properly, the I2C bus is operating properly if D1 on the relay PCA and D2 of
the Valve Driver PCA are flashing
There is a problem with the I2C bus if both D1 on the relay PCA and D2 of the Valve
Driver PCA are ON/OFF constantly.
8.4.5. TOUCHSCREEN INTERFACE
Verify the functioning of the touch screen by observing the display when pressing a
touch-screen control button. Assuming that there are no wiring problems and that the
DC power supplies are operating properly, but pressing a control button on the touch
screen does not change the display, any of the following may be the problem:
The touch-screen controller may be malfunctioning.
The internal USB bus may be malfunctioning.
You can verify this failure by logging on to the instrument using APICOM or a terminal
program. If the instrument responds to remote commands and the display changes
accordingly, the touch-screen interface may be faulty.
8.4.6. LCD DISPLAY MODULE
Verify the functioning of the front panel display by observing it when power is applied
to the instrument. Assuming that there are no wiring problems and that the DC power
supplies are operating properly, the display screen should light and show the splash
screen and other indications of its state as the CPU goes through its initialization
process.
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8.4.7. RELAY PCA
The Relay PCA can be most easily checked by observing the condition of the status
If D1 on the Relay PCA is flashing and the status indicator for the output in question
(Pump power, Heater power, Valve Drive, etc.) toggles properly using the Signal I/O
function, then the associated control device on the Relay PCA is bad. Several of the
control devices are in sockets and can be easily replaced. The table below lists the
control device associated with a particular function.
Table 8-8: Relay PCA Control Devices
CONTROL
DEVICE
Q2
FUNCTION
IN SOCKET
UV Lamp Heater
O3 Gen Heater
No
No
Q3
All Valves
U5
Yes
No
AC Dry air Pump
DC Photometer Pump
K1
U1
No
8.4.8. PHOTOMETER O3 GENERATOR PRESSURE /FLOW SENSOR
ASSEMBLY
This assembly is only present in calibrators with O3 generator and/or photometer
installed. The pressure/flow sensor PCA, located at the rear of the instrument between
T703U) can be checked with a Voltmeter. The following procedure assumes that the
wiring is intact and that the motherboard as well as the power supplies are operating
properly:
BASIC PCA OPERATION:
Measure the voltage across C1; it should be 10 VDC ± 0.25 VDC. If not then the
board is bad.
Measure the voltage between TP2 and TP1 C1; it should be 10 VDC ± 0.25 VDC. If
not then the board is bad.
Measure the voltage across C2; it should be 5 VDC ± 0.25 VDC. If not then the
board is bad.
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PHOTOMETER PRESSURE SENSOR (ABSOLUTE PRESSURE):
1. Measure the pressure on the inlet side of S1 with an external pressure meter.
2. Measure the voltage across TP4 and TP1.
The expected value for this signal should be:
EXAMPLE: If the measured pressure is 20 Hg-in-A, the expected voltage level between
TP4 and TP1 would be between 2870 mVDC and 3510 mVDC.
EXAMPLE: If the measured pressure is 25 Hg-in-A, the expected voltage level between
TP4 and TP1 would be between 3533 mVDC and 4318 mVDC.
If this voltage is out of range, then either pressure transducer S1 is bad, the
board is bad or there is a pneumatic failure preventing the pressure transducer
from sensing the absorption cell pressure properly.
O3 GENERATOR PRESSURE SENSOR (GAUGE PRESSURE):
1. Measure the pressure on the inlet side of S2 with an external pressure meter.
2. Measure the voltage across TP5 and TP1.
The expected value for this signal should be:
EXAMPLE: If the measured pressure is 25 psig, the expected voltage level between
TP4 and TP1 would be between 1182 mVDC and 1444 mVDC.
EXAMPLE: If the measured pressure is 30 psig, the expected voltage level between
TP4 and TP1 would be between 1373 mVDC and 1677 mVDC.
If this voltage is out of range, then either pressure transducer S1 is bad, the
board is bad or there is a pneumatic failure preventing the pressure transducer
from sensing the absorption cell pressure properly.
PHOTOMETER FLOW SENSOR:
Measure the voltage across TP3 and TP1.
With proper flow (800 cc3/min through the photometer), this should be
approximately 4.5V (this voltage will vary with altitude).
With flow stopped (photometer inlet disconnected or pump turned OFF) the
voltage should be approximately 1V.
If the voltage is incorrect, the flow sensor S3 is bad, the board is bad or there is
a leak upstream of the sensor.
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8.4.9. MOTHERBOARD
8.4.9.1. A/D Functions
The simplest method to check the operation of the A-to-D converter on the motherboard
is to use the Signal I/O function under the DIAG menu to check the two A/D reference
voltages and input signals that can be easily measured with a voltmeter.
REF_4096_MV and REF_GND. If both are within 3 mV of nominal (4096 and 0), and
are stable, ±0.5 mV then the basic A/D is functioning properly. If not then the
motherboard is bad.
2. Choose a parameter in the Signal I/O function such as PHOTO_LAMP_DRIVE,
O3_GEN_TEMP or PHOTO_FLOW.
Compare these voltages at their origin (see the interconnect drawing and
interconnect list in Appendix D) with the voltage displayed through the signal I/O
function.
If the wiring is intact but there is a large difference between the measured and
displayed voltage (±10 mV) then the motherboard is bad.
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8.4.9.2. Test Channel / Analog Outputs Voltage
To verify that the analog output is working properly, connect a voltmeter to the output in
question and perform an analog output step test as follows:
For each of the steps the output should be within 1% of the nominal value listed in the
table below except for the 0% step, which should be within 0mV ±2 to 3 mV. Make
sure you take into account any offset that may have been programmed into channel (See
Section 4.9.1.5).
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Table 8-9: Analog Output Test Function - Nominal Values Voltage Outputs
FULL SCALE OUTPUT OF VOLTAGE RANGE
(see Section 4.9.1.3)
100mV
1V
5V
10V
STEP
%
0
NOMINAL OUTPUT VOLTAGE
1
2
3
4
5
6
0
0
0
1
2
3
4
5
0
2
20
40
60
80
100
20 mV
40 mV
60 mV
80 mV
100 mV
0.2
0.4
0.6
0.8
1.0
4
6
8
10
If one or more of the steps fails to be within these ranges, it is likely that there has been
a failure of the either or both of the DACs and their associated circuitry on the
motherboard.
8.4.9.3. Status Outputs
To test the status output electronics:
1. Connect a jumper between the “D“ pin and the “” pin on the status output
connector.
2. Connect a 1000 ohm resistor between the “+” pin and the pin for the status output
that is being tested.
3. Connect a voltmeter between the “” pin and the pin of the output being tested (see
table below).
and outputs until you get to the output in question.
5. Alternately, turn on and off the output noting the voltage on the voltmeter.
It should vary between 0 volts for ON and 5 volts for OFF.
Table 8-10: Status Outputs Check
PIN
STATUS
(LEFT TO RIGHT)
1
ST_SYSTEM_OK
SPARE
2
3
ST_CAL_ACTIVE
ST_DIAG_MODE
ST_TEMP_ALARM
ST_PRESS_ALARM
SPARE
4
5
6
7 and 8
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8.4.9.4. Control Inputs
Table 8-11: T703 Control Input Pin Assignments and Corresponding Signal I/O Functions
CONNECTOR
Top
INPUT
CORRESPONDING I/O SIGNAL
CONTROL_IN_1
CONTROL_IN_2
CONTROL_IN_3
CONTROL_IN_4
CONTROL_IN_5
CONTROL_IN_6
CONTROL_IN_7
CONTROL_IN_8
CONTROL_IN_9
CONTROL_IN_10
CONTROL_IN_11
CONTROL_IN_12
A
B
C
D
E
F
G
H
I
Top
Top
Top
Top
Top
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
J
K
L
The control input bits can be tested by applying a trigger voltage to an input and
watching changes in the status of the associated function under the SIGNAL I/O
submenu:
EXAMPLE: to test the “A” control input:
and outputs until you get to the output named 0) CONTROL_IN_1.
2. Connect a jumper from the “+” pin on the appropriate connector to the “U” on the
same connector.
3. Connect a second jumper from the “” pin on the connector to the “A” pin.
4. The status of 0) CONTROL_IN_1 should change to read “ON”.
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8.4.9.5. Control Outputs
Table 8-12: Control Outputs Pin Assignments and Corresponding Signal I/O Functions Check
PIN (LEFT TO RIGHT)
STATUS
1
2
3
4
5
6
7
CONTROL_OUT_1
CONTROL_OUT_2
CONTROL_OUT_3
CONTROL_OUT_4
CONTROL_OUT_5
CONTROL_OUT_6
CONTROL_OUT_7
CONTROL_OUT_8
8
9
CONTROL_OUT_9
CONTROL_OUT_10
CONTROL_OUT_11
CONTROL_OUT_12
10
11
12
To test the Control Output electronics:
1. Connect a jumper between the “E“ pin and the “” pin on the status output
connector.
2. Connect a 1000 ohm resistor between the “+” pin and the pin for the status output
that is being tested.
3. Connect a voltmeter between the “” pin and the pin of the output being tested (see
and outputs until you get to the output in question.
5. Alternately, turn on and off the output noting the voltage on the voltmeter.
It should vary between 0 volts for ON and 5 volts for OFF.
8.4.10. CPU
There are two major types of CPU board failures, a complete failure and a failure
associated with the Disk On Module (DOM). If either of these failures occurs, contact
the factory.
For complete failures, assuming that the power supplies are operating properly and the
wiring is intact, the CPU is faulty if on power-on, the watchdog LED on the
motherboard is not flashing.
In some rare circumstances, this failure may be caused by a bad IC on the motherboard,
specifically U57, the large, 44 pin device on the lower right hand side of the board. If
this is true, removing U57 from its socket will allow the instrument to start up but the
measurements will be invalid.
If the instrument stops during initialization (the front panel display shows a fault or
warning message), it is likely that the DOM, the firmware or the configuration and data
files have been corrupted.
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8.4.11. RS-232 COMMUNICATIONS
8.4.11.1. General RS-232 Troubleshooting
Teledyne API calibrators use the RS-232 communications protocol to allow the
instrument to be connected to a variety of computer-based equipment. RS-232 has been
used for many years and as equipment has become more advanced, connections between
various types of hardware have become increasingly difficult. Generally, every
manufacturer observes the signal and timing requirements of the protocol very carefully.
Problems with RS-232 connections usually center around four general areas:
information.
If a modem is being used, additional configuration and wiring rules must be
Verify that cable (03596) that connects the serial COM ports of the CPU to J12 of
the motherboard is properly seated
8.4.11.2. Troubleshooting Calibrator/Modem or Terminal Operation
These are the general steps for troubleshooting problems with a modem connected to a
Teledyne API calibrator.
Check cables for proper connection to the modem, terminal or computer.
Check to make sure the DTE-DCE is in the correct position as described in Section
Check to make sure the set up command is correct (See Section 5.2)
Verify that the Ready to Send (RTS) signal is at logic high. The T703 sets pin 7
(RTS) to greater than 3 volts to enable modem transmission.
Make sure the BAUD rate, word length, and stop bit settings between modem and
calibrator match, See Section 5.1.3.
Use the RS-232 test function to send “w” characters to the modem, terminal or
computer; See Section 5.1.5
Get your terminal, modem or computer to transmit data to the calibrator (holding
down the space bar is one way); the green LED should flicker as the instrument is
receiving data.
Make sure that the communications software or terminal emulation software is
functioning properly.
NOTE
Further help with serial communications is available in a separate manual “RS-232 Programming Notes”
Teledyne API part number 013500000.
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8.4.12. TEMPERATURE PROBLEMS
Individual control loops are used to maintain the set point of the UV lamp and ozone
generator. If any of these temperatures are out of range or are poorly controlled, the
T703 will perform poorly.
8.4.12.1. Box / Chassis Temperature
The box temperature sensor is mounted to the motherboard and cannot be disconnected
to check its resistance. Rather check the BOX TEMP signal using the SIGNAL I/O
ambient temperature, but at ~30oC (6-7 above room temperature) the signal should be
~1450 mV.
8.4.12.2. Photometer Sample Chamber Temperature
The temperature of the gas in the photometer sample chamber should read
approximately 5.0C higher than the box temperature.
8.4.12.3. UV Lamp Temperature
There are three possible causes for the UV Lamp temperature to have failed.
The UV Lamp heater has failed. Check the resistance between pins 5 and 6 on the
six-pin connector adjacent to the UV Lamp on the Optical Bench.
It should be approximately 30 Ohms.
Assuming that the I2C bus is working and that there is no other failure with the Relay
board, the FET Driver on the Relay Board may have failed.
Using the PHOTO_LAMP HEATER parameter under the SIGNAL I/O function
of the DIAG menu, as described above, turn on and off the UV Lamp Heater
(D15 on the relay board should illuminate as the heater is turned on).
Check the DC voltage present between pin 1 and 2 on J13 of the Relay Board.
If the FET Driver has failed, there will be no change in the voltage across pins 1
and 2.
If the FET Driver Q2 checks out OK, the thermistor temperature sensor in the lamp
assembly may have failed.
Unplug the connector to the UV Lamp Heater/Thermistor PCB, and measure
the resistance of the thermistor between pins 5 and 6 of the 6-pin connector.
The resistance near the 58oC set point is ~8.1k ohms.
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8.4.12.4. Ozone Generator Temperature
There are three possible causes for the Ozone Generator temperature to have failed.
The O3 generator heater has failed. Check the resistance between pins 5 and 6 on
the 6-pin connector adjacent to the UV Lamp on the O3 Generator. It should be
approximately 5 Ohms.
Assuming that the I2C bus is working and that there is no other failure with the Relay
board, the FET Driver on the Relay Board may have failed. Using the
O3_GEN_HEATER parameter under the SIGNAL I/O function of the DIAG menu,
as described above, turn on and off the UV Lamp Heater. Check the DC voltage
present between pin 1 and 2 on J14 of the Relay Board.
If the FET Driver has failed, there should be no change in the voltage across pins 1
and 2.
If the FET Driver checks out OK, the thermistor temperature sensor in the lamp
assembly may have failed. Unplug the connector to the Ozone Generator
Heater/Thermistor PCB, and measure the resistance of the thermistor between pins
5 and 6 of the 6-pin connector.
8.5. TROUBLESHOOTING THE O3 PHOTOMETER
8.5.1. DYNAMIC PROBLEMS WITH THE O3 PHOTOMETER
Dynamic problems are problems, which only manifest themselves when the photometer
is measuring O3 concentration gas mixtures. These can be the most difficult and time
consuming to isolate and resolve.
Since many photometer behaviors that appear to be a dynamic in nature are often a
symptom of a seemingly unrelated static problems, it is recommended that dynamic
problems not be addressed until all static problems, warning conditions and subsystems
have been checked and any problems found are resolved.
Once this has been accomplished, the following most common dynamic problems
should be checked.
8.5.1.1. Noisy or Unstable O3 Readings at Zero
Check for leaks in the pneumatic system as described in Section 7.2
Confirm that the Zero gas is free of Ozone.
Confirm that the Source Lamp is fully inserted and that the lamp hold-down thumb-
screw is tight.
Check for a dirty Absorption Cell and/or pneumatic lines. Clean as necessary as
described in Section 7.2
Disconnect the exhaust line from the optical bench (the pneumatic line at the lamp
end of the bench) and plug the port in the bench. If readings remain noisy, the
problem is in one of the electronic sections of the instrument. If readings become
quiet, the problem is in the instrument's pneumatics.
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8.5.1.2. Noisy, Unstable, or Non-Linear Span O3 Readings
Check for leaks in the pneumatic systems as described in Section 7.2.
Check for proper operation of the meas/ref switching valve as described in Section
Check for dirty absorption cell and clean or replace as necessary as described in
Section 7.2
Confirm the Sample Temperature, Sample Pressure and Sample Flow readings are
correct. Check and adjust as required.
8.5.1.3. Slow Response to Changes in Concentration
Check for dirty absorption cell and clean or replace as necessary as described in
Section 7.2
Check for pneumatic leaks as described in Section 7.2
Check for improper materials in the inlet manifold.
The photometer needs 800 cc3/min of gas flow. Make sure that this is accounted for
8.5.1.4. The Analog Output Signal Level Does Not Agree With Front Panel Readings
(see Section 6.1.4).
8.5.1.5. Cannot Zero
Check for leaks in the pneumatic system as described in Section 7.2.
Confirm that the Zero gas is free of Ozone.
The photometer needs 800 cc3/min of gas flow. Make sure that this is accounted for
8.5.1.6. Cannot Span
Check for leaks in the pneumatic systems as described in Section 7.2.
Check for proper operation of the meas/ref switching valve as described in Section
Check for dirty absorption cell and clean or replace as necessary as described in
Section 7.2
Confirm the Sample Temperature, Sample Pressure and Sample Flow readings are
correct. Check and adjust as required.
The photometer needs 800 cc3/min of gas flow. Make sure that this is accounted for
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8.5.2. CHECKING MEASURE / REFERENCE VALVE
To check the function of the photometer’s measure / reference valve:
1. Set the calibrator’s front panel display to show the PHOTO REFERENCE test
function (see Section 4.1).
calibration of the photometer.
Press XZRO and allow the calibrator to stabilize.
3. Before completing the calibration by pressing the ZERO button, note of the displayed
value.
4. Press the final Zero button, then press “NO” when asked, “ARE YOU SURE”.
photometer.
Press XSPN and allow the calibrator to stabilize.
6. Before completing the calibration by pressing the SPAN button, note of the displayed
value of PHOTO REF.
If the O3 REF value has decreased by more than 2 mV from its value with Zero-
gas, then there is a "cross-port" leak in the m/r valve.
7. Press the final Zero button then press “NO” when asked, “ARE YOU SURE”.
8.6. TROUBLE SHOOTING THE O3 GENERATOR
T703U (Section 8.6.2).
WARNING
Hazardous voltage present - use caution.
8.6.1. TROUBLESHOOTING THE O3 GENERATOR IN THE T703
1. Unplug the cable connector at P1 on the Lamp Power Supply and confirm that
+15VDC is present between Pins 1 and 2 on the cable connector.
2. If this voltage is incorrect, check the DC test points on the relay PCA as described
in Section 8.4.3.
3. Begin generating O3.
4. Scroll to the Test Function O3GENDRV and note the reading in mVDC [XXXX.X].
5. Remove the cover of the O3 generator and check for the presence of the following
voltages on the UV lamp power supply PCA:
Reading between TP1 and TP4 (grnd) should match the O3GENDRV test
function reading [XXXX.X] mVDC ± 10 mVDC
If this voltage is incorrect, either the UV lamp power supply PCA is faulty or the
I2C bus is not communicating with the UV lamp power supply PCA.
Reading of +5VDC should be seen between TP3 and TP4 (grnd).
If this voltages is less than 4.8 or greater than 5.25, either the 5 VDC power
supply or the UV lamp power supply PCA are faulty.
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If the above voltages check out, it is more likely that a problem is due to the UV Lamp
than due to the Lamp Power Supply. Replace the UV Lamp and if the problem persists,
replace the Lamp Power Supply.
8.6.2. TROUBLESHOOTING THE O3 GENERATOR IN THE T703U
1. Make sure the calibrator is idling in STANDBY mode.
2. Unplug the cable connector at P1 on the Lamp Power Supply and confirm that
+15VDC is present between Pins 1 and 2 on the cable connector.
3. If this voltage is incorrect, check the DC test points on the relay PCA as described
in Section 8.4.3.
of the following voltages on the UV lamp power supply PCA:
+800 mVDC ± 10 mVDC between TP1 and TP4 (grnd)
If this voltage is incorrect, either the UV lamp power supply PCA is faulty or the
I2C bus is not communicating with the UV lamp power supply PCA.
+5VDC between TP3 and TP4 (grnd)
If this voltages is less than 4.8 or greater than 5.25, either the 5 VDC power
supply or the UV lamp power supply PCA are faulty.
If the above voltages check out, it is more likely that a problem is due to the UV Lamp
than due to the Lamp Power Supply. Replace the UV Lamp and if the problem persists,
replace the Lamp Power Supply.
8.7. REPAIR PROCEDURES
8.7.1. REPAIRING SAMPLE FLOW CONTROL ASSEMBLY
The critical flow orifice is housed in the flow control assembly (Teledyne API part
number: 001760400) located on the top of the optical bench. A sintered filter protects
the jewel orifice so it is unusual for the orifice to need replacing, but if it does, or the
filter needs replacement please use the following procedure (see the Spare Parts list in
Appendix B for part numbers and kits):
1. Turn off power to the calibrator.
3. Disconnect the pneumatic connection from the flow assembly.
5. Replace the o-rings (p/n OR000001) and the sintered filter (p/n FL000001).
6. If replacing the critical flow orifice itself (P/N 000941000), make sure that the side
with the colored window (usually red) is facing downstream to the gas flow.
7. Apply new Teflon® tape to the male connector threads.
8. Reassemble in reverse order.
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Pneumatic Connector, Male 1/8”
(P/N FT_70
Spring
(P/N HW_20)
Sintered Filter
(P/N FL_01)
Critical Flow Orifice
(P/N 000941000)
Make sure it is placed with the
jewel down)
O-Ring
(P/N OR_01)
Purge Housing
(P/N 000850000)
Figure 8-5:
Critical Flow Restrictor Assembly Disassembly
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8.7.2. DISK-ON-MODULE REPLACEMENT PROCEDURE
NOTE
Printed circuit assemblies (PCAs) are sensitive to electro-static discharges too small to be felt by the
human nervous system. Failure to use ESD protection when working with electronic assemblies will
void the instrument warranty.
Replacing the Disk-on-Module (DOM) will cause loss of all DAS data; it also may
cause loss of some instrument configuration parameters unless the replacement DOM
carries the exact same firmware version. Whenever changing the version of installed
software, the memory must be reset. Failure to ensure that memory is reset can cause the
instrument to malfunction, and invalidate measurements.
After the memory is reset, the A/D converter must be re-calibrated, and all information
collected in Step 1 below must be re-entered before the instrument will function
correctly. Also, zero and span calibration should be performed.
1. Document all instrument parameters that may have been changed, such as range,
auto-cal, analog output, serial port and other settings before replacing the DOM.
(You will need this information to re-enter at the end of this procedure).
2. Turn off power to the instrument, fold down the rear panel by loosening the
mounting screws.
3. When looking at the electronic circuits from the back of the instrument, locate the
Disk-on-Module in the right most socket of the CPU board.
4. The DOM should carry a label with firmware revision, date and initials of the
programmer.
5. Remove the nylon fastener that mounts the DOM over the CPU board, and lift the
DOM off the CPU. Do not bend the connector pins.
6. Install the new Disk-on-Module, making sure the notch at the end of the chip
matches the notch in the socket.
7. It may be necessary to straighten the pins somewhat to fit them into the socket.
Press the DOM all the way in and reinsert the offset clip.
8. Close the rear panel and turn on power to the machine.
9. If the replacement DOM carries a firmware revision, re-enter all of the setup
information.
10. Recalibrate A/D converter, and conduct a Zero and Span calibration as well.
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8.8. FAQ’S
The following list is from the T-API Technical Support Department of the 10 most
commonly asked questions relating to the Model T703 Photometric Calibrator.
QUESTION
ANSWER
My ozone ACT =XXXX, why?
Look at the Photo Ref/Meas readings from the photometer UV lamp detector are most
When I generate ozone, it takes
a long time to settle out or it
fluctuates around the target
concentration until finally
stabilizing.
Why does the ENTR key
sometimes disappear on the
front panel display?
Sometimes the ENTR key will disappear if you select a setting that is invalid or out of
the allowable range for that parameter, such as trying to set the 24-hour clock to
25:00:00. Once you adjust the setting to an allowable value, the ENTR button will re-
appear.
How do I make the RS-232
Interface Work?
When should I change the
The sintered filters do not require regular replacement. Should one require
sintered filter(s) in the calibrators replacement as part of a troubleshooting or repair exercise, see Section 8.7.1.
flow control(s) and how do I
change them?
How often should I rebuild the
photometer pump on my
calibrator?
The photometer pump has been designed for longer service life than standard
diaphragm pumps. When the pump wears out, the entire pump must be replaced.
How long do the UV lamps of
the O3 generator and
photometer last?
The typical lifetime is about 2-3 years.
8.9. TECHNICAL ASSISTANCE
If this manual and its trouble-shooting / service sections do not solve your problems,
technical assistance may be obtained from
TELEDYNE-API, TECHNICAL SUPPORT
9480 CARROLL PARK DRIVE
SAN DIEGO, CALIFORNIA 92121-5201
USA
Toll-free Phone: 800-324-5190
Phone: 858-657-9800
Fax: 858-657-9816
Email: [email protected]
Website: http://www.teledyne-api.com/
Before you contact Technical Support, fill out the problem report form in Appendix C,
which is also available online for electronic submission at http://www.teledyne-
api.com/forms/.
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9. PRINCIPLES OF OPERATION
9.1. PNEUMATIC OPERATION
9.1.1. GAS FLOW CONTROL
Gas flow rates are set by various flow control assemblies in the gas stream(s), locations
Figure 9-1.
Location of Gas Flow Control Assemblies - T703
Figure 9-2:
Location of Gas Flow Control Assemblies - T703U
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9.1.1.1. Photometer Critical Flow Orifice
Critical flow orifices are a remarkably simple way to regulate stable gas flow rates.
They operate without moving parts by taking advantage of the laws of fluid dynamics.
By restricting the flow of gas though the orifice, a pressure differential is created. This
pressure differential combined with the action of the calibrator’s pump draws the gas
through the orifice.
As the pressure on the downstream side of the orifice (the pump side) continues to drop,
the speed that the gas flows though the orifice continues to rise. Once the ratio of
upstream pressure to downstream pressure is greater than 2:1, the velocity of the gas
through the orifice reaches the speed of sound. As long as that ratio stays at least 2:1 the
gas flow rate is unaffected by any fluctuations, surges, or changes in downstream
pressure because such variations only travel at the speed of sound themselves and are
therefore cancelled out by the sonic shockwave at the downstream exit of the critical
flow orifice.
The actual flow rate of gas through the orifice (volume of gas per unit of time), depends
on the size and shape of the aperture in the orifice. The larger the hole, the more gas
molecules, moving at the speed of sound, pass through the orifice.
9.1.2. INTERNAL GAS PRESSURE SENSORS
There are two pressure sensors in the T703/T703U: one for the regulator and one for the
Pressure/Flow Sensor.
A 100 psig pressure sensor on this PCA is used to monitor the downstream regulator
pressure. This value is displayed on the front panel as a test measurement called REG
PRESSURE.
A second pressure located on the rear PCA measures the pressure of gas in the
photometer’s absorption tube. This sensor is a 0-15 psia (absolute pressure) range
sensor. This data is used by the CPU when calculating the O3 concentration inside the
absorption tube. This value is displayed on the front panel as a test measurement called
PHOTO SPRESS. Note that this value is converted to units of Inches of Mercury (IN-
HG-A) when displayed on the front panel.
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9.2. ELECTRONIC OPERATION
9.2.1. OVERVIEW
Male
Female
Analog Outputs
TEST
Status Outputs
1 - 8
CHANNEL
OUTPUT
Aout 4
Aout 3
Aout 2
Aout 1
Control Outputs
1 - 12
Control Inputs
1 - 12
Touchscreen
Display
Analog Outputs
(D/A)
External Digital I/O
Power Up
Circuit
O3 Generator Input
Pressure Sensor
PC 104
CPU Card
Disk on
Module
Photometer Sample Gas
Pressure Sensor
Flash
Chip
Box
Temperature
I2C Bus
Thermistor Interface
O3 Generator
In T703U only.
RELAY
PCA
O3 Generator
UV
Reference
Detector
Lamp
O3 Generator
UV Lamp
Temperature
Photometer
UV Lamp
Temperature
Photometer
Lamp Heater
O3 Generator
Lamp Supply
Photometer Sample Gas
Temperature
O3 Generator
Lamp Heater
Photometer
Pump
Absorption tube
Photometer
Lamp Power
Supply
Photometer
Detector
Preamp
Photometer
Detector
Figure 9-3:
Electronic Block Diagram
The core of the calibrator is a microcomputer (referred to as the CPU) that controls
various internal processes, interprets data, makes calculations, and reports results using
specialized firmware developed by Teledyne API. It communicates with the user as
well as receives data from and issues commands to a variety of peripheral devices via a
separate printed circuit assembly called the motherboard.
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The motherboard is directly mounted to the inside rear panel and collects data, performs
signal conditioning duties and routes incoming and outgoing signals between the CPU
and the calibrator’s other major components.
Data are generated by the various sub components of the T703 (e.g. flow data from the
MFCs, O3 concentration from the photometer). Analog signals are converted into digital
data by a unipolar, analog-to-digital converter, located on the motherboard.
A variety of sensors report the physical and operational status of the calibrator’s major
components, again through the signal processing capabilities of the motherboard. These
status reports are used as data for the concentration calculations and as trigger events for
certain control commands issued by the CPU. They are stored in memory by the CPU
and in most cases can be viewed but the user via the front panel display.
9.2.2. CENTRAL PROCESSING UNIT (CPU)
panel. It is a low power (5 VDC, 720mA max), high performance, Vortex 86SX-based
microcomputer running Windows CE. Its operation and assembly conform to the
PC-104 specification.
Figure 9-4:
CPU Board Annotated
The CPU includes two types of non-volatile data storage: a Disk on Module (DOM) and
an embedded flash chip.
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9.2.2.1. Disk On Module (DOM)
The DOM is a 44-pin IDE flash chip with a storage capacity up to 256 MB. It is used to
store the computer’s operating system, the Teledyne API firmware, and most of the
operational data.
9.2.2.2. Flash Chip
This non-volatile, embedded flash chip includes 2MB of storage for calibration data as
well as a backup of the calibrator’s configuration. Storing these key data onto a less
frequently accessed chip significantly decreases the chance of data corruption.
In the unlikely event that the flash chip should fail, the calibrator will continue to
operate with just the DOM. However, all configuration information will be lost,
requiring the unit to be recalibrated.
9.2.3. RELAY PCA
The relay board is one of the central switching and power distribution units of the
calibrator. It contains power relays, valve drivers and status LEDs for all heated zones
and valves, as well as thermocouple amplifiers, power distribution connectors and the
two switching power supplies of the calibrator. The relay board communicates with the
motherboard over the I2C bus. Its status indicators and components can be used for
troubleshooting power problems and valve or heater functionality.
Generally, the relay PCA is located in the right-rear quadrant of the calibrator and is
mounted vertically on the backside of the same bracket as the instrument’s DC power
supplies, however the exact location of the relay PCA may differ from model to model.
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Watchdog
Status LED (D1)
DC Power Supply
Test Points
Status LED’s
(D2 through D16)
I2C Connector
Power
Connections
for DC
DC Valve &
Photometer
Pump
Heaters
Control
AC Pump
Configuration
Plug
DC
Valve Control
Drivers
AC Power
OUT to Dry
Air Pump
DC Valve &
Photometer
Pump Control
Connector
AC Power
IN
DC Power
Distribution
Connectors
Dry Air AC Pump
Control Relay
Figure 9-5:
Relay Board PCA with AC Relay Retainer Removed
This version of the Relay PCA includes one AC relay that controls the AC-powered Dry
Air (zero air) pump and A plastic insulating safety shield covers the remaining empty
AC Relay sockets.
CAUTION
NEVER REMOVE THIS SAFETY SHIELD WHILE THE INSTRUMENT IS PLUGGED IN AND
TURNED ON. THE CONTACTS OF THE AC RELAY SOCKETS BENEATH THE SHIELD
CARRY HIGH AC VOLTAGES EVEN WHEN NO RELAYS ARE PRESENT
9.2.3.1. Valve Control
The relay board also hosts two valve driver IC's, each of which can drive up four valves.
In the T703, the relay PCA controls only those valves associated with the O3 generator
and photometer.
In the T703U, the relay PCA controls two additional valves: the Divert valve and the O3
Gen valve.
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9.2.3.2. Heater Control
The relay PCA controls the DC heaters for the O3 generator and photometer lamp
housing.
Figure 9-6:
Heater Control Loop Block Diagram.
9.2.3.3. Relay PCA Status LEDs and Watch Dog Circuitry
Sixteen LEDs are located on the calibrator’s relay board (Figure 9-7) to indicate the
status of the calibrator’s heating zones and some of its valves; included is a general
respective functionality. Not all LEDs are used.
D9 (Green) – O3 Pump
T703U only:
D8 (Green) – Zero Air Shutoff Valve Option
D10 (Green)
D7 (Green) – Photometer Meas/Ref Valve
D2 (Yellow) – Zero Air Pump Option
O3 Divert Valve
T703U only: D11 (Green) – O3 Generator Valve
D15 (Green) - Photometer Lamp Heater
D16 (Green) – O3 Generator Lamp Heater
D1 (RED)
Watchdog
Indicator
Figure 9-7:
Status LED Locations – Relay PCA
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Table 9-1: Relay Board Status LEDs
LED
COLOR
DESCRIPTION
FUNCTION/INDICATION
Watchdog Circuit; I2C bus
operation.
D1
Red
Blinks when I2C bus is operating properly
D2
Yellow
Zero Air Pump (option) Status
When lit the zero air AC pump is running.
D3-6
SPARE
When lit the valve open to the Measure
gas path; when not lit while instrument is
running, the valve is open to the
Reference gas path.
Photometer Meas/Ref Valve
Status
D7
Green
D8
D9
Green
Green
Green
Green
ZeroAir ShutoffValve (option) Status
O3 Pump Status
When lit, ZA shutoff valve open.
When lit, O3 pump running
D10
T703U Divert Valve Status
when lit, divert valve open.
D11
T703U O3 Generator Valve Status When lit, O3 generator valve open.
SPARE
D12 - 14
When lit the photometer UV lamp heater
D15
D16
Green
Green
Photometer Lamp Heater Status
is on
When lit the O3 generator UV lamp heater
O3 Generator Lamp Heater
is on
9.2.3.4. Relay PCA Watchdog Indicator (D1)
The most important of the status LEDs on the relay board is the red I2C Bus watchdog
LED. It is controlled directly by the calibrator’s CPU over the I2C bus. Special circuitry
on the relay PCA watches the status of D1. Should this LED ever stay ON or OFF for
30 seconds (indicating that the CPU or I2C bus has stopped functioning) this Watchdog
Circuit automatically shuts all valves and turns off all heaters and lamps.
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9.2.4. MOTHERBOARD
This is the largest electronic assembly in the calibrator and is mounted to the rear panel
as the base for the CPU board and all I/O connectors. This printed circuit assembly
provides a multitude of functions including A/D conversion, digital input/output, PC-
104 to I2C translation, temperature sensor signal processing and is a pass through for the
RS-232 and RS-485 signals.
9.2.4.1. A to D Conversion
Analog signals, such as the voltages received from the calibrator’s various sensors, are
converted into digital signals that the CPU can understand and manipulate by the analog
to digital converter (A/D).Under the control of the CPU, this functional block selects a
particular signal input and then coverts the selected voltage into a digital word.
The A/D consists of a voltage-to-frequency (V-F) converter, a programmable logic
device (PLD), three multiplexers, several amplifiers and some other associated devices.
The V-F converter produces a frequency proportional to its input voltage. The PLD
counts the output of the V-F converter during a specified time period, and sends the
result of that count, in the form of a binary number, to the CPU.
The A/D can be configured for several different input modes and ranges but in this
calibrator it is used in uni-polar mode with a +5V full scale. The converter includes a
1% over and under-range. This allows signals from -0.05V to +5.05V to be fully
converted.
For calibration purposes, two reference voltages are supplied to the A/D converter:
Reference ground and +4.096 VDC. During calibration, the device measures these two
voltages, outputs their digital equivalent to the CPU. The CPU uses these values to
compute the converter’s offset and slope and also uses these factors for subsequent
conversions.
9.2.4.2. Sensor Inputs
The key analog sensor signals are coupled to the A/D converter through the master
multiplexer from two connectors on the motherboard. Terminating resistors (100 kΩ)
on each of the inputs prevent cross talk between the sensor signals.
9.2.4.3. Thermistor Interface
This circuit provides excitation, termination and signal selection for several negative-
coefficient, thermistors (temperature sensors) located inside the calibrator.
9.2.4.4. Analog Outputs
The calibrator comes equipped with one analog output. It can be set by the user to carry
the current signal level of any one of the parameters (see Table 7-4) and will output an
analog VDC signal that rises and falls in relationship with the value of the parameter.
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9.2.4.5. External Digital I/O
The external digital I/O performs two functions.
The STATUS outputs carry logic-level (5V) signals through an optically isolated 8-pin
connector on the rear panel of the calibrator. These outputs convey on/off information
about certain calibrator conditions such as CONC VALID. They can be used to
interface with certain types of programmable devices.
The CONTROL outputs can be used to initiate actions by external peripheral devices in
conjunction with individual steps of a calibration sequence (see Section 6.5.1.6).
The CONTROL inputs can be initiated by applying 5V DC power from an external
source such as a PLC or data logger (Section 6.5.1.5). Zero and span calibrations can be
initiated by contact closures on the rear panel.
9.2.4.6. I2C Data Bus
I2C is a two-way, clocked, bi-directional, digital serial I/O bus that is used widely in
commercial and consumer electronic systems. A transceiver on the motherboard
converts data and control signals from the PC-104 bus to I2C. The data is then fed to the
relay board, optional analog input board and valve driver board circuitry.
9.2.4.7. Power-up Circuit
This circuit monitors the +5V power supply during calibrator start-up and sets the
analog outputs, external digital I/O ports, and I2C circuitry to specific values until the
CPU boots and the instrument software can establish control.
9.2.5. POWER SUPPLY AND CIRCUIT BREAKER
The calibrator operates in two main AC power ranges: 100-120 VAC and 220-240 VAC
(both ± 10%) between 47 and 63 Hz. A 5 ampere circuit breaker is built into the
ON/OFF switch. In case of a wiring fault or incorrect supply power, the circuit breaker
will automatically turn off the calibrator.
NOTE:
The calibrator is equipped with a universal power supply that allows it to accept any AC power
configuration, within the limits specified in Table 2-2.
CAUTION
Should the power circuit breaker trip, correct the condition causing this situation
before turning the calibrator back on.
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SENSOR SUITES
KEY
Sensor Control
& I/O Logic
ANALOG SENSORS
AC POWER
DC POWER
O3 Generator
Reference detector,
LOGIC DEVICES
Pre-Amplifiers
& Amplifiers
Photometer UV
Detector
(e.g. CPU, I2C bus,
Motherboard, etc.)
AC
POWER IN
PS 1
GAS
TEMPERATURE
SENSORS
+5 VDC
ON / OFF
SWITCH
±15 VDC
GAS
PRESSURE
SENSORS
RELAY PCA
AC
Relay
Photometer
UV Lamp P/S
PS 2
(+12 VDC)
Solenoid
Drivers
O3 Generator UV
Lamp Xfromer
O3 Generator UV
Lamp P/S
Cooling
Fan
DRY AIR
Pump
Photometer
Photometer
M/R valve
Pump
Controlled
via I2C
O3 Generator
UV Lamp
Figure 9-8:
Power Distribution Block diagram
9.2.6. AC POWER CONFIGURATION
The digital electronic systems will operate with any of the specified power regimes. As
long as instrument is connected to 100-120 VAC or 220-240 VAC at either 50 or 60 Hz
it will turn on and after about 30 seconds show a front panel display. Internally, the
status LEDs located on the Relay PCA, Motherboard and CPU should turn on as soon as
the power is supplied.
On the other hand, in some of the calibrators the dry air pump must be properly
configured for the type of power being supplied to the instrument. Figure 2-3 shows the
location of the Pump AC Configuration jumper.
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JP7
Pump
Configuration
Figure 9-9:
Location of the AC Configuration Jumper for the Dry Air Pump
9.2.6.1. AC Configuration – Internal Pump (JP7)
AC power configuration for the internal dry air pump is set using Jumper set JP7.
Table 9-2: AC Power Configuration for Internal Pumps (JP7)
JUMPER
BETWEEN
PINS
LINE
POWER
LINE
FREQUENCY
JUMPER
COLOR
FUNCTION
Connects pump pin 3 to 110 / 115 VAC power line
Connects pump pin 3 to 110 / 115 VAC power line
Connects pump pins 2 & 4 to Neutral
2 to 7
3 to 8
4 to 9
60 HZ
WHITE
BLACK
110VAC
115 VAC
Connects pump pin 3 to 110 / 115 VAC power line
Connects pump pin 3 to 110 / 115 VAC power line
Connects pump pins 2 & 4 to Neutral
2 to 7
3 to 8
4 to 9
50 HZ1
Connects pump pins 3 and 4 together
Connects pump pin 1 to 220 / 240VAC power line
Connects pump pins 3 and 4 together
1 to 6
3 to 8
1 to 6
3 to 8
60 HZ
BROWN
BLUE
220VAC
240 VAC
50 HZ1
Connects pump pin 1 to 220 / 240VAC power line
1 A jumper between pins 5 and 10 may be present on the jumper plug assembly, but is only functional on the T300 and
has no function on the Models T700 or T703.
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110 VAC /115 VAC
220 VAC /240 VAC
1
2
3
4
5
1
2
3
4
5
6
7
6
7
8
8
9
9
10
10
Jumper 5-to-10 not functional
Figure 9-10: Pump AC Power Jumpers (JP7)
9.3. FRONT PANEL TOUCHSCREEN/DISPLAY INTERFACE
The most commonly used method for communicating with the T703/T703U Dynamic
Dilution Calibrator is via the instrument’s front panel LCD touchscreen display. The
LCD display is controlled directly by the CPU board. The touchscreen is interfaced to
the CPU by means of a touchscreen controller that connects to the CPU via the internal
USB bus and emulates a computer mouse.
Figure 9-11:
Front Panel Layout
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The LCD display is controlled directly by the CPU board. The touchscreen is interfaced
to the CPU by means of a touchscreen controller that connects to the CPU via the
internal USB bus and emulates a computer mouse.
9.3.1.1. Front Panel Interface PCA
The front panel interface PCA controls the various functions of the display and
touchscreen. For driving the display it provides connection between the CPU video
controller and the LCD display module. This PCA also contains:
power supply circuitry for the LCD display module
a USB hub that is used for communications with the touchscreen controller and the
two front panel USB device ports
he circuitry for powering the display backlight
9.4. SOFTWARE OPERATION
The calibrator’s core module is a high performance, Vortex 86SX-based microcomputer
running Windows CE. Inside Windows CE, special software developed by Teledyne
API interprets user commands from the various interfaces, performs procedures and
tasks, stores data in the CPU’s various memory devices, and calculates the concentration
of the gas being sampled.
Windows CE
API FIRMWARE
Calibrator Operations
Memory Handling
Calibration Procedures
Configuration Procedures
Autonomic Systems
PC/104 BUS
Calibration Data
System Status Data
Diagnostic Routines
CALIBRATOR
HARDWARE
Interface Handling
Sensor input Data
Touchscreen
Analog Output Data
RS232 & RS485
External Digital I/O
Measurement
Algorithms for
photometer
PC/104 BUS
Figure 9-12:
Schematic of Basic Software Operation
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9.5. O3 GENERATOR OPERATION
9.5.1. PRINCIPLE OF PHOTOLYTIC O3 GENERATION
Ozone is a naturally occurring substance that is sometimes called "activated oxygen". It
contains three atoms of oxygen (O3) instead of the usual two found in normal oxygen
(O2) that is essential for life. Because of its relatively short half-life, ozone cannot be
bottled and stored for later use and there fore must always be generated on-site by an
ozone generator. The two main principles of ozone generation are UV-light and corona
discharge. While the corona-discharge method is most common because of its ability to
generate very high concentrations (up to 50%), it is inappropriate for calibration needs
since the level of fine control over the O3 concentration is poor. Also, the corona
discharge method produces a small amount of NO2 as a byproduct, which also may be
undesirable in a calibration application
The UV-light method is most feasible in calibration application where production of
low, accurate concentrations of ozone desired. This method mimics the radiation
method that occurs naturally from the sun in the upper atmosphere producing the ozone
layer. An ultra-violet lamp inside the generator emits a precise wavelength of UV Light
(185 nm). Ambient air] is passed over an ultraviolet lamp, which splits some of the
molecular oxygen (O2) in the gas into individual oxygen atoms which attach to other
existing oxygen molecules (O2), forming ozone (O3).
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Inlet from
Diluent Source
Valve
2
O
In
U
V
L
a
m
p
Reference
Detector
6O hv
3O
+
=
2
185
3
To
Photometer,
Cal Gas and
Vent Outlets
3
O
Out
Flow
Control
Assembly
Figure 9-13:
O3 Generator Internal Pneumatics
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9.5.2. GENERATOR PNEUMATIC OPERATION
The rate of flow through the O3 generator is controlled by a flow control assembly
located on the Regulator Sub-Assembly in the front of the calibrator.
O3 Generator
Gas Inlet
O3 Generator
Heater Control PCA
O3 Outlet to
Photometer
and
O3 Outlet
Internal Vent
Measure / Reference
Valve for
Photometer Bench
Figure 9-14:
O3 Generator Valve and Gas Fixture Locations
9.5.3. O3 GENERATOR ELECTRONIC OPERATION
Electronically the O3 generator and its subcomponents act as peripheral devices operated
by the CPU via the motherboard. Sensor signals, such as the UV lamp thermistor are
routed to the motherboard, where they are digitized. Digital data is sent by the
motherboard to the calibrator’s CPU and where required stored in either flash memory
or on the CPU’s disk-on-chip. Commands from the CPU are sent to the motherboard
and forwarded to the various devices via the calibrator’s I2C bus.
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Figure 9-15:
O3 Generator Electronic Block Diagram
UV Lamp
O3 Generator
Heater Control
PCA
UV Lamp Power
Supply
(200 VAC @ 30 kHz)
UV Lamp Power
Supply
Transformer
Reference Detector
Preamp Power
Connector
Reference
Detector
Signal Output
to Motherboard
UV Lamp
Power Connector
UV Lamp
I2C Connector
O3 Generator
Reference Detector
O3 Generator
Reference Detector
PCA
Figure 9-16:
O3 Generator Electronic Components Location
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9.5.3.1. O3 Generator Temperature Control
In order to operate at peak efficiency the UV lamp of the O3 generator is maintained at a
constant 48ºC. if the lamp temperature falls below 43ºC or rises above 53ºC a warning
is issued by the CPU.
This temperature is controlled as described in the section on the relay PCA (see Section
shown below:
UV Lamp
O3 Generator
Heater Control PCA
(Heater is located beneath
the PCA)
UV Lamp
Thermistor
Figure 9-17:
O3 Generator Temperature Thermistor and DC Heater Locations
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9.6. PHOTOMETER OPERATION
The calibrator’s photometer determines the concentration of Ozone (O3) in a sample gas
drawn through it. Sample and calibration gasses must be supplied at ambient
atmospheric pressure in order to establish a stable gas flow through the absorption tube
where the gas’ ability to absorb ultraviolet (UV) radiation of a certain wavelength (in
this case 254 nm) is measured.
Gas bearing O3 and zero air are alternately routed through the photometer’s absorption
tube. Measurements of the UV light passing through the sample gas with and without
O3 present are made and recorded.
Calibration of the photometer is performed in software and does not require physical
adjustments. Two internal variables, a slope and offset are used to adjust the calibration
of the photometer.
The CPU uses these calibration values, the UV absorption measurements made on the
sample gas in the absorption tube along with data regarding the current temperature and
pressure of the gas to calculate a final O3 concentration.
9.6.1. MEASUREMENT METHOD
9.6.1.1. Calculating O3 Concentration
The basic principle by which photometer works is called Beer’s Law (also referred to as
the Beer-Lambert equation). It defines the how light of a specific wavelength is
absorbed by a particular gas molecule over a certain distance at a given temperature and
pressure. The mathematical relationship between these three parameters for gasses at
Standard Temperature and Pressure (STP) is:
Equation 9-5
I Io e-LC
at STP
Where:
Io
I
is the intensity of the light if there was no absorption.
is the intensity with absorption.
L
C
is the absorption path, or the distance the light travels as it is being absorbed.
is the concentration of the absorbing gas. In the case of the Model T703, Ozone
(O3).
is the absorption coefficient that tells how well O3 absorbs light at the specific
wavelength of interest.
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To solve this equation for C, the concentration of the absorbing Gas (in this case O3), the
application of a little algebra is required to rearrange the equation as follows:
Equation 9-6
I
1
o
C ln
at STP
I
L
Unfortunately, both ambient temperature and pressure influence the density of the
sample gas and therefore the number of ozone molecules present in the absorption tube
thus changing the amount of light absorbed.
In order to account for this effect the following addition is made to the equation:
Equation 9-7
I
1
Τ
29.92inHg
o
C ln
I
L
273
Ρ
Where:
T
P
= sample ambient temperature in degrees Kelvin
= ambient pressure in inches of mercury
Finally, to convert the result into Parts per Billion (PPB), the following change is made:
Equation 9-8
9
I
10
29.92inHg
o
C ln
I
L
273
In a nutshell the photometer:
Measures each of the above variables: ambient temperature; ambient gas pressure;
the intensity of the UV light beam with and without O3 present;
Inserts know values for the length of the absorption path and the absorption
coefficient, and:
Calculates the concentration of O3 present in the sample gas.
9.6.1.2. The Measurement / Reference Cycle
In order to solve the Beer-Lambert equation it is necessary to know the intensity of the
light passing through the absorption path both when O3 is present and when it is not. A
valve called the measure/reference valve, physically located on front-left corner of the
O3 generator assembly (see Figures 3-4 and 9-14) alternates the gas stream flowing to
the photometer between zero air (diluent gas) and the O3 output from the O3 generator.
This cycle takes about 6 seconds.
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Table 9-3: Photometer Measurement / Reference Cycle
TIME INDEX
0 sec.
STATUS
Measure/Reference Valve Opens to the Measure Path.
0 – 2 sec.
Wait Period. Ensures that the Absorption tube has been adequately flushed of any
previously present gasses.
2 – 3 sec.
Analyzer measures the average UV light intensity of O3 bearing Sample Gas (I) during
this period.
3 sec.
Measure/Reference Valve Opens to the Reference Path.
3 – 5 sec.
Wait Period. Ensures that the Absorption tube has been adequately flushed of O3
bearing gas.
5 – 6 sec.
Analyzer measures the average UV light intensity of Non-O3 bearing Sample Gas (I0)
during this period.
CYCLE REPEAT EVERY 6 SECONDS
Figure 9-18:
T703 O3 Photometer Gas Flow – Measure Cycle
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Figure 9-21:
T703U O3 Photometer Gas Flow – Reference Cycle
9.6.1.3. The Absorption Path
In the most basic terms, the photometer uses a high energy, mercury vapor lamp to
generate a beam of UV light. This beam passes through a window of material
specifically chosen to be both non-reactive to O3 and transparent to UV radiation at
254nm and into an absorption tube filled with sample gas.
Because ozone is a very efficient absorber of UV radiation the absorption path length
required to create a measurable decrease in UV intensity is short enough (approximately
42 cm) that the light beam is only required to make one pass through the Absorption
Tube. Therefore, no complex mirror system is needed to lengthen the effective path by
bouncing the beam back and forth.
Finally, the UV passes through a similar window at the other end of the absorption tube
and is detected by a specially designed vacuum diode that only detects radiation at or
very near a wavelength of 254nm. The specificity of the detector is high enough that no
extra optical filtering of the UV light is needed.
The detector reacts to the UV light and outputs a current signal that varies in direct
relationship with the intensity of the light shining on it. This current signal is amplified
and converted to a 0 to 5 VDC voltage analog signal voltage sent to the instrument’s
motherboard where it is digitized. The CPU to be uses this digital data in computing the
concentration of O3 in the absorption tube.
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Window
Window
UV Detector
ABSORPTION TUBE
Analog current
signal is output by
Detector
Sample Gas OUT
Sample Gas IN
UV
Source
Absorption Path Length = 42 cm
O-5 VDC
Photometer
Pre amp
PCA
analog signal
to
Motherboard
Figure 9-22:
O3 Photometer Absorption Path
9.6.1.4. Interferent Rejection
It should be noted that the UV absorption method for detecting ozone is subject to
interference from a number of sources. The photometer has been successfully tested for
its ability to reject interference from sulfur dioxide, nitrogen dioxide, nitric oxide, water,
and meta-xylene.
While the photometer rejects interference from the aromatic hydrocarbon meta-xylene, it
should be noted that there are a very large number of other volatile aromatic
hydrocarbons that could potentially interfere with ozone detection. If the calibrator is
installed in an environment where high aromatic hydrocarbon concentrations are
suspected, specific tests should be conducted to reveal the amount of interference these
compounds may be causing.
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9.6.2. PHOTOMETER LAYOUT
The Photometer is where the absorption of UV light by ozone is measured and converted
into a voltage. It consists of several sub-assemblies:
A mercury-vapor UV lamp. This lamp is coated in a material that optically screens
the UV radiation output to remove the O3 producing 185nm radiation. Only light at
254nm is emitted.
An AC power supply that supplies the current for starting and maintaining the
plasma arc of the mercury vapor lamp.
A thermistor and DC heater attached to the UV Lamp to maintain the Lamp at an
optimum operating temperature.
42 cm long quartz absorption tube.
A thermistor attached to the quartz tube for measuring sample gas temperature.
Gas inlet and outlet mounting blocks that rout sample gas into and out of the
photometer.
The vacuum diode, UV detector that converts UV light to a DC current.
A preamplifier assembly, which convert the Detector’s current output into a DC
Voltage then amplifies it to a level readable by the A to D converter circuitry of the
instrument’s motherboard
Sample Gas
Thermistor
UV Lamp Thermistor
(UV Lamp Heater Behind Thermistor)
UV Lamp Power
Transformer
Absorption Tube
UV Detector
Power Connector
from
+15 VDC power supply
Sample Gas
Outlet
UV Detector
Preamp PCA
Sample Gas Inlet
UV Lamp Power
UV Lamp Heater
Control PCA
Supply
(200 VAC @ 30 kHz)
UV Lamp
Figure 9-23:
O3 Photometer Layout – Top Cover Removed
9.6.3. PHOTOMETER PNEUMATIC OPERATION
The flow of gas through the photometer is created by a small internal pump that pulls air
though the instrument. There are several advantages to this “pull through”
configuration. Placing the pump down stream from the absorption tube avoids problems
caused by the pumping process heating and compressing the sample.
In order to measure accurately the presences of low concentrations of O3 in the sample
air it is necessary to establish and maintain a relatively constant and stable volumetric
flow of sample gas through the photometer. The simplest way to accomplish this is by
placing a flow control assembly containing a critical flow orifice directly upstream of
the pump but down stream from the absorption tube.
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The critical flow orifice installed in the pump supply line is tuned to create a gas flow of
800 cm3/min. A pressure sensor and a flow sensor, located on the O3 generator /
photometer pressure flow sensor PCA, monitor the pressure and flow rate of the gas
passing through the photometers absorption tube.
photometer.
9.6.4. PHOTOMETER ELECTRONIC OPERATION
Motherboard
PC 104
CPU Card
A/D
Converter
s
04 Bu
PC 1
Disk on
Module
I2C Bus
Photometer
Sample Gas
Pressure
Thermistor Interface
Sensor
RELAY PCA
Photometer M/R
Valve
(Located on O3
Generator Assembly)
I2C
Status
LED
y
Photometer
Detector
Preamp
Photometer
UV Lamp
Temperature
Photometer
Sample Gas
Temperature
Absorption tube
Photometer
Lamp Power
Supply
Photometer
Pump
Photometer
Detector
Photometer
Lamp Heater
Photometer
Figure 9-24:
O3 Photometer Electronic Block Diagram
Like the O3 generator, the O3 photometer and its subcomponents act as peripheral
devices operated by the CPU via the motherboard. Communications to and from the
CPU are handled by the motherboard.
Outgoing commands for the various devices such as the photometer pump, the UV lamp
power supply the U\V Lamp heater are issued via the I2C bus to circuitry on the relay
PCA which turns them ON/OFF. The CPU also issues commands over the I2C bus that
cause the relay PCA to cycle the measure/reference valve back and forth.
Incoming date the UV light detector is amplified locally then converted to digital
information by the motherboard. Output from the photometers temperature sensors is
also amplified and converted to digital data by the motherboard. The O3 concentration
of the sample gas is computed by the CPU using this data (along with gas pressure and
flow data received from the pressure sensors.
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9.6.4.1. O3 Photometer Temperature Control
In order to operate at peak efficiency the UV lamp of the O3 photometer is maintained at
a constant 58ºC. This is intentionally set at a temperature higher than the ambient
temperature of the operating environment to make sure that local changes in temperature
do not affect the UV Lamp. If the lamp temperature falls below 56ºC or rises above
61ºC a warning is issued by the calibrator’s CPU.
This temperature is controlled as described in the section on the relay PCA (Section
The following TEST functions report these temperatures and are viewable from the
instrument’s front panel:
PHOTO LAMP TEMP - The temperature of the UV Lamp reported in ºC.
PHOTO STEMP - The temperature of the Sample gas in the absorption tube
reported in ºC.
9.6.4.2. Pneumatic Sensors for the O3 Photometer
The several sensors located on the pneumatic sensor just to the left rear of the O3
generator assembly measure the absolute pressure and the flow rate of gas inside the
photometer’s absorption tube. This information is used by the CPU to calculate the O3
concentration of the sample gas (See Equation 9-7). Both of these measurements are
made downstream from the absorption tube but upstream of the pump. A critical flow
orifice located between the flow sensor and the pump maintains the gas flow through the
photometer at 800 cm3/min.
The following TEST functions are viewable from the instrument’s front panel:
PHOTO FLOW - The flow rate of gas through the photometer measured in LPM.
PHOTO SPRESS – the pressure of the gas inside the absorption tube. This
pressure is reported in inches of mercury-absolute (in-Hg-A), i.e. referenced to a
vacuum (zero absolute pressure). This is not the same as PSIG.
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A Primer on Electro-Static Discharge
10. A PRIMER ON ELECTRO-STATIC DISCHARGE
Teledyne API considers the prevention of damage caused by the discharge of static
electricity to be extremely important part of making sure that your instrument continues
to provide reliable service for a long time. This section describes how static electricity
occurs, why it is so dangerous to electronic components and assemblies as well as how
to prevent that damage from occurring.
10.1. HOW STATIC CHARGES ARE CREATED
Modern electronic devices such as the types used in the various electronic assemblies of
your instrument, are very small, require very little power and operate very quickly.
Unfortunately, the same characteristics that allow them to do these things also make
them very susceptible to damage from the discharge of static electricity. Controlling
electrostatic discharge begins with understanding how electro-static charges occur in the
first place.
Static electricity is the result of something called triboelectric charging which happens
whenever the atoms of the surface layers of two materials rub against each other. As the
atoms of the two surfaces move together and separate, some electrons from one surface
are retained by the other.
Materials
Makes
Contact
Materials
Separate
+
+
+
+
PROTONS = 3
ELECTRONS = 2
PROTONS = 3
ELECTRONS = 4
PROTONS = 3
ELECTRONS = 3
PROTONS = 3
ELECTRONS = 3
NET CHARGE = -1
NET CHARGE = +1
NET CHARGE = 0
NET CHARGE = 0
Figure 10-1:
Triboelectric Charging
If one of the surfaces is a poor conductor or even a good conductor that is not grounded,
the resulting positive or negative charge cannot bleed off and becomes trapped in place,
or static. The most common example of triboelectric charging happens when someone
wearing leather or rubber soled shoes walks across a nylon carpet or linoleum tiled floor.
With each step, electrons change places and the resulting electro-static charge builds up,
quickly reaching significant levels. Pushing an epoxy printed circuit board across a
workbench, using a plastic handled screwdriver or even the constant jostling of
StyrofoamTM pellets during shipment can also build hefty static charges
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Table 10-1: Static Generation Voltages for Typical Activities
MEANS OF GENERATION
Walking across nylon carpet
Walking across vinyl tile
Worker at bench
65-90% RH
1,500V
250V
10-25% RH
35,000V
12,000V
6,000V
100V
Poly bag picked up from bench
1,200V
20,000V
Moving around in a chair padded
with urethane foam
1,500V
18,000V
10.2. HOW ELECTRO-STATIC CHARGES CAUSE DAMAGE
Damage to components occurs when these static charges come into contact with an
electronic device. Current flows as the charge moves along the conductive circuitry of
the device and the typically very high voltage levels of the charge overheat the delicate
traces of the integrated circuits, melting them or even vaporizing parts of them. When
examined by microscope the damage caused by electro-static discharge looks a lot like
tiny bomb craters littered across the landscape of the component’s circuitry.
listing device susceptibility levels, shows why Semiconductor Reliability News estimates
that approximately 60% of device failures are the result of damage due to electro-static
discharge.
Table 10-2: Sensitivity of Electronic Devices to Damage by ESD
DAMAGE SUSCEPTIBILITY VOLTAGE
RANGE
DEVICE
DAMAGE BEGINS
OCCURRING AT
CATASTROPHIC
DAMAGE AT
MOSFET
VMOS
10
100
30
1800
100
NMOS
60
GaAsFET
EPROM
60
2000
100
100
140
150
190
200
300
300
300
500
500
500
JFET
7000
500
SAW
Op-AMP
CMOS
2500
3000
2500
3000
7000
500
Schottky Diodes
Film Resistors
This Film Resistors
ECL
SCR
1000
2500
Schottky TTL
Potentially damaging electro-static discharges can occur:
Any time a charged surface (including the human body) discharges to a device.
Even simple contact of a finger to the leads of a sensitive device or assembly can
allow enough discharge to cause damage. A similar discharge can occur from a
charged conductive object, such as a metallic tool or fixture.
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A Primer on Electro-Static Discharge
When static charges accumulated on a sensitive device discharges from the device
to another surface such as packaging materials, work surfaces, machine surfaces
or other device. In some cases, charged device discharges can be the most
destructive.
A typical example of this is the simple act of installing an electronic assembly into
the connector or wiring harness of the equipment in which it is to function. If the
assembly is carrying a static charge, as it is connected to ground a discharge will
occur.
Whenever a sensitive device is moved into the field of an existing electro-static field,
a charge may be induced on the device in effect discharging the field onto the
device. If the device is then momentarily grounded while within the electrostatic
field or removed from the region of the electrostatic field and grounded somewhere
else, a second discharge will occur as the charge is transferred from the device to
ground.
10.3. COMMON MYTHS ABOUT ESD DAMAGE
I didn’t feel a shock so there was no electro-static discharge: The human
nervous system is not able to feel a static discharge of less than 3500 volts. Most
devices are damaged by discharge levels much lower than that.
I didn’t touch it so there was no electro-static discharge: Electro Static charges
are fields whose lines of force can extend several inches or sometimes even feet
away from the surface bearing the charge.
It still works so there was no damage: Sometimes the damaged caused by
electro-static discharge can completely sever a circuit trace causing the device to
fail immediately. More likely, the trace will be only partially occluded by the damage
causing degraded performance of the device or worse, weakening the trace. This
weakened circuit may seem to function fine for a short time, but even the very low
voltage and current levels of the device’s normal operating levels will eat away at
the defect over time causing the device to fail well before its designed lifetime is
reached.
These latent failures are often the most costly since the failure of the equipment in which
the damaged device is installed causes down time, lost data, lost productivity, as well as
possible failure and damage to other pieces of equipment or property.
Static Charges can’t build up on a conductive surface: There are two errors in
this statement.
Conductive devices can build static charges if they are not grounded. The charge will be
equalized across the entire device, but without access to earth ground, they are still
trapped and can still build to high enough levels to cause damage when discharged.
A charge can be induced onto the conductive surface and/or discharge triggered in the
presence of a charged field such as a large static charge clinging to the surface of a
nylon jacket of someone walking up to a workbench.
As long as my instrument is properly installed, it is safe from damage caused
by static discharges: It is true that when properly installed the chassis ground of
your instrument is tied to earth ground and its electronic components are prevented
from building static electric charges themselves. This does not prevent discharges
from static fields built up on other things, like you and your clothing, from
discharging through the instrument and damaging it.
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10.4. BASIC PRINCIPLES OF STATIC CONTROL
It is impossible to stop the creation of instantaneous static electric charges. It is not,
however difficult to prevent those charges from building to dangerous levels or prevent
damage due to electro-static discharge from occurring.
10.4.1. GENERAL RULES
Only handle or work on all electronic assemblies at a properly set up ESD station.
Setting up an ESD safe workstation need not be complicated. A protective mat properly
tied to ground and a wrist strap are all that is needed to create a basic anti-ESD
workstation.
Protective Mat
Wrist Stra
Ground Point
Figure 10-2:
Basic anti-ESD Work Station
For technicians that work in the field, special lightweight and portable anti-ESD kits are
available from most suppliers of ESD protection gear. These include everything needed
to create a temporary anti-ESD work area anywhere.
Always wear an Anti-ESD wrist strap when working on the electronic
assemblies of your instrument. An anti-ESD wrist strap keeps the person
wearing it at or near the same potential as other grounded objects in the work area
and allows static charges to dissipate before they can build to dangerous levels.
Anti-ESD wrist straps terminated with alligator clips are available for use in work
areas where there is no available grounded plug.
Also, anti-ESD wrist straps include a current limiting resistor (usually around one meg-
ohm) that protects you should you accidentally short yourself to the instrument’s power
supply.
Simply touching a grounded piece of metal is insufficient. While this may
temporarily bleed off static charges present at the time, once you stop touching the
grounded metal new static charges will immediately begin to re-build. In some
conditions, a charge large enough to damage a component can rebuild in just a few
seconds.
Always store sensitive components and assemblies in anti-ESD storage bags
or bins: Even when you are not working on them, store all devices and assemblies
in a closed anti-Static bag or bin. This will prevent induced charges from building
up on the device or assembly and nearby static fields from discharging through it.
Use metallic anti-ESD bags for storing and shipping ESD sensitive
components and assemblies rather than pink-poly bags. The famous, pink-poly
bags are made of a plastic that is impregnated with a liquid (similar to liquid laundry
detergent) which very slowly sweats onto the surface of the plastic creating a
slightly conductive layer over the surface of the bag.
While this layer may equalizes any charges that occur across the whole bag, it does not
prevent the build up of static charges. If laying on a conductive, grounded surface, these
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A Primer on Electro-Static Discharge
bags will allow charges to bleed away but the very charges that build up on the surface
of the bag itself can be transferred through the bag by induction onto the circuits of your
ESD sensitive device. Also, the liquid impregnating the plastic is eventually used up
after which the bag is as useless for preventing damage from ESD as any ordinary
plastic bag.
Anti-Static bags made of plastic impregnated with metal (usually silvery in color)
provide all of the charge equalizing abilities of the pink-poly bags but also, when
properly sealed, create a Faraday cage that completely isolates the contents from
discharges and the inductive transfer of static charges.
Storage bins made of plastic impregnated with carbon (usually black in color) are also
excellent at dissipating static charges and isolating their contents from field effects and
discharges.
Never use ordinary plastic adhesive tape near an ESD sensitive device or to
close an anti-ESD bag. The act of pulling a piece of standard plastic adhesive
tape, such as Scotch® tape, from its roll will generate a static charge of several
thousand or even tens of thousands of volts on the tape itself and an associated
field effect that can discharge through or be induced upon items up to a foot away.
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10.4.2. BASIC ANTI-ESD PROCEDURES FOR INSTRUMENT REPAIR AND
MAINTENANCE
10.4.2.1. Working at the Instrument Rack
When working on the instrument while it is in the instrument rack and plugged into a
properly grounded power supply
1. Attach you anti-ESD wrist strap to ground before doing anything else.
Use a wrist strap terminated with an alligator clip and attach it to any bare metal
portion of the instrument chassis.
This will safely connect you to the same ground level to which the instrument
and all of its components are connected.
2. Pause for a second or two to allow any static charges to bleed away.
3. Open the casing of the instrument and begin work. Up to this point, the closed
metal casing of your instrument has isolated the components and assemblies inside
from any conducted or induced static charges.
4. If you must remove a component from the instrument, do not lay it down on a non-
ESD preventative surface where static charges may lie in wait.
5. Only disconnect your wrist strap after you have finished work and closed the case of
the instrument.
10.4.2.2. Working at an Anti-ESD Work Bench.
When working on an instrument of an electronic assembly while it is resting on a anti-
ESD work bench
1. Plug you anti-ESD wrist strap into the grounded receptacle of the work station
before touching any items on the work station and while standing at least a foot or
so away. This will allow any charges you are carrying to bleed away through the
ground connection of the workstation and prevent discharges due to field effects
and induction from occurring.
2. Pause for a second or two to allow any static charges to bleed away.
3. Only open any anti-ESD storage bins or bags containing sensitive devices or
assemblies after you have plugged your wrist strap into the workstation.
Lay the bag or bin on the workbench surface.
Before opening the container, wait several seconds for any static charges on
the outside surface of the container to be bled away by the workstation’s
grounded protective mat.
4. Do not pick up tools that may be carrying static charges while also touching or
holding an ESD Sensitive Device.
Only lay tools or ESD-sensitive devices and assemblies on the conductive
surface of your workstation. Never lay them down on any non-ESD
preventative surface.
5. Place any static sensitive devices or assemblies in anti-static storage bags or bins
and close the bag or bin before unplugging your wrist strap.
6. Disconnecting your wrist strap is always the last action taken before leaving the
workbench.
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10.4.2.3. Transferring Components from Rack to Bench and Back
When transferring a sensitive device from an installed Teledyne API instrument to an
Anti-ESD workbench or back:
1. Follow the instructions listed above for working at the instrument rack and
workstation.
2. Never carry the component or assembly without placing it in an anti-ESD bag or bin.
3. Before using the bag or container allow any surface charges on it to dissipate:
If you are at the instrument rack, hold the bag in one hand while your wrist strap
is connected to a ground point.
If you are at an anti-ESD workbench, lay the container down on the conductive
work surface.
In either case wait several seconds.
4. Place the item in the container.
5. Seal the container. If using a bag, fold the end over and fastening it with anti-ESD
tape.
Folding the open end over isolates the component(s) inside from the effects of
static fields.
Leaving the bag open or simply stapling it shut without folding it closed prevents
the bag from forming a complete protective envelope around the device.
6. Once you have arrived at your destination, allow any surface charges that may have
built up on the bag or bin during travel to dissipate:
Connect your wrist strap to ground.
If you are at the instrument rack, hold the bag in one hand while your wrist strap
is connected to a ground point.
If you are at a anti-ESD work bench, lay the container down on the conductive
work surface
In either case wait several seconds
7. Open the container.
10.4.2.4. Opening Shipments from Teledyne API
Packing materials such as bubble pack and Styrofoam pellets are extremely efficient
generators of static electric charges. To prevent damage from ESD, Teledyne API ships
all electronic components and assemblies in properly sealed ant-ESD containers.
1. Static charges will build up on the outer surface of the anti-ESD container during
shipping as the packing materials vibrate and rub against each other. To prevent
these static charges from damaging the components or assemblies being shipped
make sure that you:
Always unpack shipments from Teledyne API as follows:
2. Open the outer shipping box away from the anti-ESD work area.
3. Carry the still sealed ant-ESD bag, tube or bin to the anti-ESD work area.
container at the work station.
5. Reserve the anti-ESD container or bag to use when packing electronic components
or assemblies to be returned to Teledyne API.
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Teledyne API T703/T703U Calibrator Operation Manual
10.4.2.5. Packing Components for Return to Teledyne API
Always pack electronic components and assemblies to be sent to Teledyne API in anti-
ESD bins, tubes or bags.
WARNING
DO NOT use pink-poly bags.
NEVER allow any standard plastic packaging materials to touch the
electronic component/assembly directly
This includes, but is not limited to, plastic bubble-pack, Styrofoam
peanuts, open cell foam, closed cell foam, and adhesive tape
DO NOT use standard adhesive tape as a sealer. Use ONLY anti-ESD tape
1. Never carry the component or assembly without placing it in an anti-ESD bag or bin.
2. Before using the bag or container allow any surface charges on it to dissipate:
If you are at the instrument rack, hold the bag in one hand while your wrist strap
is connected to a ground point.
If you are at an anti-ESD workbench, lay the container down on the conductive
work surface.
In either case wait several seconds.
3. Place the item in the container.
4. Seal the container. If using a bag, fold the end over and fastening it with anti-ESD
tape.
Folding the open end over isolates the component(s) inside from the effects of
static fields.
Leaving the bag open or simply stapling it shut without folding it closed prevents
the bag from forming a complete protective envelope around the device.
NOTE
If you do not already have an adequate supply of anti-ESD bags or containers available, Teledyne API’s
Follow the instructions listed above for working at the instrument rack and workstation.
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GLOSSARY
Note: Some terms in this glossary may not occur elsewhere in this manual.
Term
10BaseT
Description/Definition
an Ethernet standard that uses twisted (“T”) pairs of copper wires to transmit at 10
megabits per second (Mbps)
100BaseT
APICOM
ASSY
same as 10BaseT except ten times faster (100 Mbps)
name of a remote control program offered by Teledyne-API to its customers
Assembly
CAS
Code-Activated Switch
Corona Discharge, a frequently luminous discharge, at the surface of a conductor or
between two conductors of the same transmission line, accompanied by ionization of the
surrounding atmosphere and often by a power loss
CD
Converter Efficiency, the percentage of light energy that is actually converted into
electricity
CE
CEM
Continuous Emission Monitoring
Chemical formulas that may be included in this document:
CO2
C3H8
CH4
H2O
HC
carbon dioxide
propane
methane
water vapor
general abbreviation for hydrocarbon
HNO3
H2S
NO
nitric acid
hydrogen sulfide
nitric oxide
NO2
NOX
nitrogen dioxide
nitrogen oxides, here defined as the sum of NO and NO2
nitrogen oxides, often called odd nitrogen: the sum of NOX plus other compounds such as
HNO3 (definitions vary widely and may include nitrate (NO3), PAN, N2O and other
compounds as well)
NOy
NH3
O2
ammonia
molecular oxygen
O3
ozone
SO2
sulfur dioxide
cm3
metric abbreviation for cubic centimeter (replaces the obsolete abbreviation “cc”)
Central Processing Unit
CPU
DAC
DAS
DCE
DFU
Digital-to-Analog Converter
Data Acquisition System
Data Communication Equipment
Dry Filter Unit
Dynamic Host Configuration Protocol. A protocol used by LAN or Internet servers to
automatically set up the interface protocols between themselves and any other
addressable device connected to the network
DHCP
DIAG
Diagnostics, the diagnostic settings of the instrument.
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Term
Description/Definition
Disk On Module, a 44-pin IDE flash drive with up to 128MB storage capacity for
instrument’s firmware, configuration settings and data
DOM
DOS
Disk Operating System
DRAM
DR-DOS
DTE
Dynamic Random Access Memory
Digital Research DOS
Data Terminal Equipment
Electrically Erasable Programmable Read-Only Memory also referred to as a FLASH chip
or drive
EEPROM
ESD
Electro-Static Discharge
Electrical Test
ETEST
a standardized (IEEE 802.3) computer networking technology for local area networks
(LANs), facilitating communication and sharing resources
Ethernet
Fluorinated Ethylene Propylene polymer, one of the polymers that Du Pont markets as
FEP
Teflon®
Flash
FPI
non-volatile, solid-state memory
Fabry-Perot Interface: a special light filter typically made of a transparent plate with two
reflecting surfaces or two parallel, highly reflective mirrors
GFC
I2C bus
Gas Filter Correlation
a clocked, bi-directional, serial bus for communication between individual instrument
components
Integrated Circuit, a modern, semi-conductor circuit that can contain many basic
components such as resistors, transistors, capacitors etc in a miniaturized package used
in electronic assemblies
IC
IP
Internet Protocol
IZS
Internal Zero Span
Local Area Network
Liquid Crystal Display
Light Emitting Diode
Liters Per Minute
LAN
LCD
LED
LPM
MFC
M/R
Mass Flow Controller
Measure/Reference
the mass, expressed in grams, of 1 mole of a specific substance. Conversely, one mole is
the amount of the substance needed for the molar mass to be the same number in grams
as the atomic mass of that substance.
MOLAR MASS
EXAMPLE: The atomic weight of Carbon is 12 therefore the molar mass of Carbon is 12
grams. Conversely, one mole of carbon equals the amount of carbon atoms that weighs
12 grams.
Atomic weights can be found on any Periodic Table of Elements.
Non-Dispersive Infrared
NDIR
NIST-SRM
PC
National Institute of Standards and Technology - Standard Reference Material
Personal Computer
PCA
Printed Circuit Assembly, the PCB with electronic components, ready to use
Personal Computer / Advanced Technology
PC/AT
PCB
Printed Circuit Board, the bare board without electronic component
Per-Fluoro-Alkoxy, an inert polymer; one of the polymers that Du Pont markets as Teflon®
Programmable Logic Controller, a device that is used to control instruments based on a
PFA
PLC
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Term
Description/Definition
logic level signal coming from the instrument
Programmable Logic Device
Phase Lock Loop
PLD
PLL
Photo Multiplier Tube, a vacuum tube of electrodes that multiply electrons collected and
charged to create a detectable current signal
PMT
P/N (or PN)
PSD
Part Number
Prevention of Significant Deterioration
Poly-Tetra-Fluoro-Ethylene, a very inert polymer material used to handle gases that may
PTFE
react on other surfaces; one of the polymers that Du Pont markets as Teflon®
PVC
Rdg
Poly Vinyl Chloride, a polymer used for downstream tubing
Reading
specification and standard describing a serial communication method between DTE (Data
Terminal Equipment) and DCE (Data Circuit-terminating Equipment) devices, using a
maximum cable-length of 50 feet
RS-232
RS-485
specification and standard describing a binary serial communication method among
multiple devices at a data rate faster than RS-232 with a much longer distance between
the host and the furthest device
SAROAD
SLAMS
SLPM
Storage and Retrieval of Aerometric Data
State and Local Air Monitoring Network Plan
Standard Liters Per Minute of a gas at standard temperature and pressure
Standard Temperature and Pressure
STP
Transfer Control Protocol / Internet Protocol, the standard communications protocol for
Ethernet devices
TCP/IP
TEC
TPC
Thermal Electric Cooler
Temperature/Pressure Compensation
Universal Serial Bus: a standard connection method to establish communication between
peripheral devices and a host controller, such as a mouse and/or keyboard and a
personal computer or laptop
USB
VARS
V-F
Variables, the variable settings of the instrument
Voltage-to-Frequency
Z/S
Zero / Span
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Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
APPENDIX A – Software Documentation
APPENDIX A – Software Documentation
APPENDIX A-1: Software Menu Trees
APPENDIX A-2: Setup Variables Available Via Serial I/O
APPENDIX A-3: Warnings, Test Functions Via Serial I/O
APPENDIX A-4: Signal I/O Definitions
APPENDIX A-5: Terminal Command Designators
APPENDIX A-6: MODBUS Resister Map
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APPENDIX A – Software Documentation
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
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APPENDIX A-1: Software Menu Trees
APPENDIX A-1: Software Menu Trees
Press to
clear an
active
warning
messages.
Press to cause calibrator to
Press to
cycle
through the
active
warning
messages.
enter
mode
Cycles
through
existing
calibration
sequences.
·
·
·
·
Toggles to switch
to O3 generation
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
1 Only appears when warning messages are active.
2 Only appears when an one or more calibration
sequences are programmed into the calibrator’s
memory.
Toggle these buttons to set
the target concentration of
the calibrator output for this
gas
Figure A-1:
Main Menu
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APPENDIX A-1: Software Menu Trees
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
MAIN MENU
CFG
SETUP
SEQ1
O3
CLK
PASS
MORE
See PRIMARY SETUP
Menu
SEQUENCE Submenu
ON
See SECONDARY
SETUP Menu
OFF
PREV NEXT
TIME
DATE
MODE
ADJ
PHOT
MODEL TYPE AND NUMBER
PART NUMBER
SETUP X.X
TIME :21:29M
MON
CNST
REF
BNCH
SERIAL NUMBER
SOFTWARE REVISION
LIBRARY REVISION
Causes the drive
voltage of the optional
O3 generator to 2500
mV. This is used to
manually adjust the
position of the
D
D
Y
Y
ENTR EXIT
iCHIP SOFTWARE REVISION
(Only appears if INET option is
installed)
CPU TYPE & OS REVISION
DATE FACTORY
Press one of these to select
mode for O3 generator.
Toggle to set the
month
Toggle to set the 2-
digit year
Toggle to set the
day of the month
generators UV Lamp.
CONFIGURATION SAVED
ENTR
EXIT
Accepts selected
O3 generator
mode
BCAL
DARK
Leaves O3
generator mode
unchanged and
returns to
SETUP X.X
TIME :21:29M
:M
H
H
M
ENTR EXIT
Requires Password
authorization
Initiates
automatic
Dark
Calibration
procedure
previous menu
Toggle to set the
minutes
1 Only appears when the calibrator is
NOT running a programmed sequence
Allows calibration of the O3
photometer bench.
Toggle to set the
hour
(24-hr clock)
(See Chapter 8 for more
information)
Figure A-2:
PRIMARY SETUP MENU - Basics
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APPENDIX A-1: Software Menu Trees
Figure A-3:
PRIMARY SETUP Menu - SEQUENCE CONFIGURATION Submenu
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APPENDIX A-1: Software Menu Trees
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
MAIN MENU
SETUP
MORE
DIAG5
VARS
COMM
ENTER PASSWORD: 818
ID
INET1
COM21
COM1
PREV
NEXT
JUMP
PRNT
EDIT
ENTER PASSWORD: 818
<SET
SET>
EDIT
0) PHOTO_LAMP=[Value]DegC
1) O3_GEN_LAMP=[Value]DegC
2) O3_CONC_RANGE=[Value]PPB
3) O3_PHOTO_BENCH_ONLY=[ON/OFF]
4) ZA_PUMP_ENAB=ON/OFF]
5) STD_TEMP=[Value] DegC
<SET
SET>
EDIT MODE
BAUD RATE
TEST PORT
TEST
ENTER PASSWORD: 818
6) STD_PRESS=[Value] In-Hg
DHCP
300
1200
2400
7) CLOCK_ADJ[HH:MM:SS]
ON
OFF
See SECONDARY SETUP Menu
DIAG Submenu
4800
9600
19200
38400
57600
115200
EDIT
EDIT
INSTRUMENT IP2
GATEWAY IP2
QUIET
COMPUTER
SECURITY
E, 8, 1
E, 7, 1
RS-485
SECURITY
MULTIDROP PROTOCOL
ENABLE MODEM
ERROR CHECKING
XON/XOFF HANDSHAKE
HARDWARE HANDSHAKE
HARDWARE FIFO
COMMAND PROMPT
SUBNET MASK2
1
Model 703E: only appears if optional Ethernet PCA is
installed. NOTE: When Ethernet PCA is present COM2
submenu disappears.
IP, GATEWAY IP & SUBNET MASK are only editable when DHCP is
OFF.
Although TCP PORT is editable regardless of the DHCP state, do not
change the setting for this property.
HOST NAME is only editable when DHCP is ON.
DIAG Menu is inactive while instrument is in GENERATE mode.
TCP PORT3
HOSTNAME4
2
3
SETUP X.X
MACHINE ID:703 ID
4
5
0
7
0
3
ENTR EXIT
Toggle to set the ID code.
ON
OFF
Figure A-4:
SECONDARY SETUP Menu - Basic)
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Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
APPENDIX A-1: Software Menu Trees
Press
to start test
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
Initiates auto-calibration of all
analog outputs
Initiates auto-calibraof the analog inputs’
zero and span points
Sets a voltage
offset for the
output
to
1
2
Initiates auto-calibration
of the selected analog input
1 Only occurs if oe of the oltage nges is cted.
2 Manual adjustment menu only appears if either the
feature is
mode
3
Menu is inactive while instrument is in
Figure A-5:
SECONDARY SETUP Menu; DIAG Submenu – Basics
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APPENDIX A-1: Software Menu Trees
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
Figure A-6:
SECONDARY SETUP Menu; DIAG Submenu – GAS CONFIGURATION
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APPENDIX A-1: Software Menu Trees
Figure A-7:
PRIMARY SETUP Menu; LVL Submenu – programming LEADS LEVELS (optional)
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Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572) APPENDIX A-2: Serial I/O Setup Variables
APPENDIX A-2: Serial I/O Setup Variables
Table A-1: Setup Variables
Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
Low Access Level Setup Variables (818 password)
PHOTO_LAMP
ºC
58
0–100
Photometer lamp temperature
set point and warning limits.
Warnings:
56–61
48
O3_GEN_LAMP
ºC
0–100
O3 generator lamp temperature
set point and warning limits.
Warnings:
43–53
500
O3_CONC_RANGE
PPB
—
0.1–20000
OFF, ON
O3 concentration range for test
channel analog output.
OFF
O3 bench control flag. ON turns
on pump and switches
O3_PHOTO_BENCH_ONLY
measure/reference valve only in
bench generation mode.
ZA_PUMP_ENAB
—
ON
OFF, ON
Zero air pump control. ON turns
on zero air pump when
generating ozone.
STD_TEMP
ºC
25
0–100
15–50
-60–60
Standard temperature for unit
conversions.
STD_PRESS
CLOCK_ADJ
SERVICE_CLEAR
"Hg
29.92
0
Standard pressure for unit
conversions.
Sec./Day
—
Time-of-day clock speed
adjustment.
OFF
OFF
ON resets the service interval
timer.
ON
TIME_SINCE_SVC
SVC_INTERVAL
Hours
Hours
0
0
0–500000
0–100000
Time since last service.
Sets the interval between service
reminders.
Medium Access Level Setup Variables (929 password)
LANGUAGE_SELECT
MAINT_TIMEOUT
—
ENGL
ENGL,
SECD,
EXTN
Selects the language to use for
the user interface. Enclose value
in double quotes (") when setting
from the RS-232 interface.
Hours
2
0.1–100
Time until automatically
switching out of software-
controlled maintenance mode.
LATCH_WARNINGS
—
—
ON
ON
ON, OFF
ON, OFF
ON enables latching warning
messages; OFF disables latching
DAYLIGHTSAVING_ENABLE
ON enables Daylight Saving
Time change; OFF disables
DST.
O3_DWELL
Seconds
PSIG
2.5
8
0.1–30
5-11
Dwell time after switching
measure/reference valve.
O3_PRESS_LIM5
O3_SAMPLE
Limits for O3 generator regulator
pressure.
Samples
1
1–30
Number of O3 detector readings
to sample.
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APPENDIX A-2: Serial I/O Setup Variables Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
DARK_OFFSET
mV
0
-1000–1000
Photometer dark offset for
measure and reference readings.
FILT_SIZE
Samples
Samples
32
6
1–100
1–100
Moving average filter size.
FILT_ASIZE
Moving average filter size in
adaptive mode.
FILT_DELTA
PPB
20
1–1000
Absolute concentration
difference to trigger adaptive
filter.
FILT_PCT
Percent
Seconds
—
5
1–100
Percent concentration difference
to trigger adaptive filter.
FILT_DELAY
FILT_ADAPT
PDELTA_GAIN 2
60
0–60
Delay before leaving adaptive
filter mode.
ON
0
OFF, ON
-200–200
ON enables adaptive filter; OFF
disables it.
PPB/dIn-Hg
Multiplied by difference between
measure and reference pressure
and added to concentration.
PDELTA_CAL_DUR 2
O3_SLOPE_CONST
Minutes
—
5
0.1–20
0.1–10
Duration of pressure
compensation calibration
procedure.
1.0
Constant factor to keep visible
slope near 1.
O3_SLOPE
—
1
0.850–1.150
-1000–1000
0.1–10000
O3 photometer slope.
O3 photometer offset.
O3_OFFSET
O3_BCAL_SET
PPB
PPB
0
400
Target O3 concentration during
bench span calibration.
O3_PUMP_STARTUP
O3_PUMP_MIN_FLOW
—
ON
0.2
OFF, ON
0–1
O3 pump startup enable. ON
enables startup procedure.
LPM
Minimum flow rate that indicates
O3 pump is on.
O3_PUMP_TIMEOUT
O3_PUMP_PULSE
Seconds
Seconds
30
1–180
0.1–10
O3 pump startup timeout.
0.5
O3 pump power off pulse
duration.
PHOTO_CYCLE
PHOTO_PROP
Seconds
10
0.5–30
0–10
Photometer lamp temperature
control cycle period.
—
—
—
—
mV
—
0.5
Photometer lamp temperature
PID proportional coefficient.
PHOTO_INTEG
PHOTO_DERIV
PHOTO_FLOW_SLOPE
O3_DEF_DRIVE
O3_GEN_MODE
0.05
0.2
0–10
Photometer lamp temperature
PID integral coefficient.
0–10
Photometer lamp temperature
PID derivative coefficient.
1
0.001–100
0–5000
Slope term to correct photometer
sample flow rate.
800
BNCH
O3 generator default drive
setting.
CNST,
REF,
O3 generator control mode.
Enclose value in double quotes
(") when setting from the RS-232
interface.
BNCH
A-12
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Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
O3_MIN_CONC
PPB
25
0–100
O3 generator minimum reliable
concentration. Less than this is
treated as zero.
REF_DELAY
REF_FREQ
Seconds
Seconds
60
1
1–300
1–60
O3 generator reference feedback
control delay.
O3 generator reference
adjustment frequency.
REF_FSIZE
REF_INTEG
Samples
—
4
1–10
0–10
O3 generator reference filter size.
0.1
0.2
120
10
O3 generator reference PID
integral coefficient.
REF_DERIV
—
0–10
1–300
1–60
O3 generator reference PID
derivative coefficient.
BENCH_DELAY
BENCH_FREQ
Seconds
Seconds
O3 generator bench feedback
control delay.
O3 generator bench adjustment
frequency.
BENCH_FSIZE
BENCH_INTEG
Samples
—
3
1–10
0–10
O3 generator bench filter size.
0.2
O3 generator bench PID integral
coefficient.
BENCH_DERIV
DRIVE_STABIL
CACHE_RESOL
—
0.5
10
2
0–10
O3 generator bench PID
derivative coefficient.
mV
PPB
0.1–100
0.1–20
O3 generator drive stability limit
to update concentration cache.
O3 generator cache un-
normalized concentration
resolution.
O3_LAMP_CYCLE
O3_LAMP_PROP
Seconds
1/DegC
Gain
2
0.5–30
0–10
O3 generator lamp temperature
control cycle period.
0.2
0.01
0.2
1
O3 generator lamp temperature
PID proportional coefficient.
O3_LAMP_INTEG
O3_LAMP_DERIV
OUTPUT_FLOW_SLOPE
0–10
O3 generator lamp temperature
PID integral coefficient.
Gain
0–10
O3 generator lamp temperature
PID derivative coefficient.
—
0.001–100
Slope term to correct output flow
rate.
A-13
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APPENDIX A-2: Serial I/O Setup Variables Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
RS232_MODE
BitFlag
0
0–65535
RS-232 COM1 mode flags. Add
values to combine flags.
1 = quiet mode
2 = computer mode
4 = enable security
8 = enable hardware
handshaking
16 = enable Hessen protocol 4
32 = enable multi-drop
64 = enable modem
128 = ignore RS-232 line errors
256 = disable XON / XOFF
support
512 = disable hardware FIFOs
1024 = enable RS-485 mode
2048 = even parity, 7 data bits, 1
stop bit
4096 = enable command prompt
8192 = even parity, 8 data bits, 1
stop bit
BAUD_RATE
—
115200
300,
RS-232 COM1 baud rate.
Enclose value in double quotes
(") when setting from the RS-232
interface.
1200,
2400,
4800,
9600,
19200,
38400,
57600,
115200
MODEM_INIT
—
“AT Y0 &D0
Any character
in the allowed
character set.
Up to 100
RS-232 COM1 modem
&H0 &I0 S0=2
&B0 &N6 &M0
E0 Q1 &W0” 0
initialization string. Sent verbatim
plus carriage return to modem on
power up or manually.
characters
long.
RS232_MODE2
BAUD_RATE2
—
—
0
0–65535
RS-232 COM2 mode flags.
(Same settings as
RS232_MODE.)
19200
300,
RS-232 COM2 baud rate.
1200,
2400,
4800,
9600,
19200,
38400,
57600,
115200
A-14
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Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572) APPENDIX A-2: Serial I/O Setup Variables
Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
MODEM_INIT2
—
“AT Y0 &D0
Any character
in the allowed
character set.
Up to 100
RS-232 COM2 modem
&H0 &I0 S0=2
&B0 &N6 &M0
E0 Q1 &W0” 0
initialization string. Sent verbatim
plus carriage return to modem on
power up or manually.
characters
long.
RS232_PASS
LINE_DELAY 1
Password
ms.
940331
0
0–999999
0–1000
RS-232 log on password.
RS-232 inter-line transmit delay
(0=disabled).
MACHINE_ID
ID
—
0
0–9999
Unique ID number for instrument.
(Hessen: 0–
999)
COMMAND_PROMPT
“Cmd> ”
Any character
in the allowed
character set.
Up to 100
characters
long.
RS-232 interface command
prompt. Displayed only if enabled
with RS232_MODE variable.
Enclose value in double quotes
(") when setting from the RS-232
interface.
TEST_CHAN_ID
NONE,
Diagnostic analog output ID.
Enclose value in double quotes
(") when setting from the RS-232
interface.
O3 PHOTO
MEAS,
O3 PHOTO
REF,
O3 GEN REF,
OUTPUT
FLOW,
REGULATOR
PRESSURE,
SAMPLE
PRESSURE,
SAMPLE
FLOW,
SAMPLE
TEMP,
PHOTO LAMP
TEMP,
O3 LAMP
TEMP,
CHASSIS
TEMP,
O3 PHOTO
CONC
PASS_ENABLE
—
—
ON
OFF, ON
ON enables passwords.
OFF disables them.
DEF_CC_OUTPUT
“00000000000
0”
Any string of
exactly 12
characters
consisting of
Default contact closure output
pattern when not executing a
sequence. Enclose value in
double quotes (") when setting
the digits 0 and from the RS-232 interface.
1 only.
PHOTO_LAMP_POWER
mV
4500
0–5000
Photometer lamp power setting.
A-15
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APPENDIX A-2: Serial I/O Setup Variables Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
LAMP_PWR_ENABLE
—
ON
OFF, ON
ON enables photometer lamp
power cycling.
OFF disables it.
LAMP_PWR_PERIOD
LAMP_OFF_DELAY
DET_VALID_DELAY
REF_SDEV_LIMIT
Hours
24
0.1
20
3
0.01–1000
0.02–5
Photometer lamp power cycling
period.
Seconds
Seconds
mV
Length of time photometer lamp
is turned off.
1–300
Delay until valid concentration is
computed.
0.1–100
Photometer reference standard
deviation must be below this limit
to switch out of startup mode.
PATH_LENGTH
BOX_SET
cm
ºC
41.96
30
0.01–99.999
0–100
Photometer detector path length.
Internal box temperature set
point and warning limits.
Warnings:
5–45
32
GAS_MOL_WEIGHT
SERIAL_NUMBER
MolWt
—
1–99.999
Molar mass of sample gas for
computing concentrations by
weight instead of volume.
Any character
in the allowed
character set.
Up to 100
Unique serial number for
instrument.
“00000000 ”
characters
long.
DISP_INTENSITY
—
—
HIGH
ON
HIGH,
MED,
LOW,
DIM
Front panel display intensity.
Enclose value in double quotes
(") when setting from the RS-232
interface.
I2C_RESET_ENABLE
OFF, ON
I2C bus automatic reset enable.
A-16
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Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572) APPENDIX A-2: Serial I/O Setup Variables
Setup Variable
Numeric
Units
Default
Value
Value
Range
Description
CLOCK_FORMAT
—
“TIME=%H:%
M:%S”
Any character
in the allowed
character set.
Up to 100
Time-of-day clock format flags.
Enclose value in double quotes
(“) when setting from the RS-232
interface.
characters
long.
“%a” = Abbreviated weekday
name.
“%b” = Abbreviated month name.
“%d” = Day of month as decimal
number (01 – 31).
“%H” = Hour in 24-hour format
(00 – 23).
“%I” = Hour in 12-hour format (01
– 12).
“%j” = Day of year as decimal
number (001 – 366).
“%m” = Month as decimal
number (01 – 12).
“%M” = Minute as decimal
number (00 – 59).
“%p” = A.M./P.M. indicator for
12-hour clock.
“%S” = Second as decimal
number (00 – 59).
“%w” = Weekday as decimal
number (0 – 6; Sunday is 0).
“%y” = Year without century, as
decimal number (00 – 99).
“%Y” = Year with century, as
decimal number.
“%%” = Percent sign.
FACTORY_OPT
—
0
0
0–0x7fffffff
Factory option flags. Add values
to combine options.
1024 = enable software-
controlled maintenance mode
2048 = enable Internet option 3
4096 = enable switch-controlled
maintenance mode
PWR_TIME
Hours
0–500000
Total powered hours.
1
Dasibi emulation version only.
2
3
4
5
Experimental.
E Series internet option.
Hessen protocol versions only.
T703U only.
A-17
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APPENDIX A-3: Warnings and Test Functions
DCN6572)
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E
APPENDIX A-3: Warnings and Test Functions
Table A-2: Warning Messages
NAME 1
WSYSRES
MESSAGE TEXT
SYSTEM RESET
DESCRIPTION
Instrument was power-cycled or the CPU was reset.
Data storage was erased.
WDATAINIT
WCONFIGINIT
DATA INITIALIZED
CONFIG INITIALIZED
Configuration storage was reset to factory configuration or
erased.
WPHOTOLTEMP
WO3GENTEMP
WPHOTOREF
WLAMPSTABIL
WO3GENREF
WO3PUMP
PHOTO LAMP TEMP
WARNING
Photometer lamp temperature outside of warning limits specified
by PHOTO_LAMP variable.
O3 GEN LAMP TEMP
WARNING
O3 generator lamp temperature outside of warning limits
specified by O3_GEN_LAMP variable.
PHOTO REFERENCE
WARNING
Photometer reference reading less than 2500 mV or greater than
4999 mV.
PHOTO LAMP STABILITY
WARNING
Photometer lamp reference step changes occur more than 25%
of the time.
O3 GEN REFERENCE
WARNING
O3 reference detector drops below 50 mV during reference
feedback O3 generator control.
O3 PUMP WARNING
O3 pump failed to turn on within timeout period specified by
O3_PUMP_TIMEOUT variable.
WBOXTEMP
BOX TEMP WARNING
Chassis temperature outside of warning limits specified by
BOX_SET variable.
WREARBOARD
WRELAYBOARD
WLAMPDRIVER
REAR BOARD NOT DET
RELAY BOARD WARN
LAMP DRIVER WARN
Rear board was not detected during power up.
Firmware is unable to communicate with the relay board.
Firmware is unable to communicate with either the O3 generator
or photometer lamp I2C driver chip.
WFRONTPANEL
WANALOGCAL
FRONT PANEL WARN
Firmware is unable to communicate with the front panel.
The A/D or at least one D/A channel has not been calibrated.
ANALOG CAL WARNING
1
The name is used to request a message via the RS-232 interface, as in “T BOXTEMP”.
A-18
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Functions
APPENDIX A-3: Warnings and Test
Table A-3: Test Functions
TEST FUNCTION NAME 1
ACTCONC
MESSAGE TEXT
DESCRIPTION
ACT=GENERATE 37 PPB O3
Actual concentration being generated, computed from real-
time inputs.
TARGCONC
OUTPUTFLOW
REGPRESS
BOXTEMP
TARG=GENERATE 100 PPB O3 Target concentration to generate.
OUTPUT FLOW=7.3 LPM
REG PRESSURE=20.1 PSIG
BOX TEMP=31.2 C
Output flow rate (computed from regulator pressure).
Regulator pressure.
Internal chassis temperature.
O3GENREF
O3GENDRIVE
O3GENTEMP
PHOTOMEAS
PHOTOREF
O3 GEN REF=1000.0 MV
O3 GEN DRIVE=800.0 MV
O3 LAMP TEMP=49.7 C
PHOTO MEASURE=2998.8 MV
O3 generator reference detector reading.
O3 generator lamp drive output.
O3 generator lamp temperature.
Photometer detector measure reading.
Photometer detector reference reading.
PHOTO REFERENCE=3000.0
MV
PHOTOFLOW
PHOTOLTEMP
PHOTOSPRESS
PHOTOSTEMP
PHOTOSLOPE
PHOTO FLOW=0.2978 LPM
PHOTO LAMP TEMP=52.6 C
PHOTO SPRESS=29.9 IN-HG-A
PHOTO STEMP=31.8 C
Photometer sample flow rate.
Photometer lamp temperature.
Photometer sample pressure.
Photometer sample temperature.
PHOTO SLOPE=1.000
Photometer slope computed during zero/span bench
calibration.
PHOTOOFFSET
PHOTOSTABIL 2
TESTCHAN
PHOTO OFFSET=0.0 PPB
PHOTO STABIL=0.1 PPB
TEST=2753.9 MV
Photometer offset computed during zero/span bench
calibration.
Photometer concentration stability (standard deviation of 25
bench concentration samples taken 10 seconds apart).
Value output to TEST_OUTPUT analog output, selected
with TEST_CHAN_ID variable.
CLOCKTIME
TIME=14:48:01
Current instrument time of day clock.
1
The name is used to request a message via the RS-232 interface, as in “T BOXTEMP”.
O3 photometer stability measurement option.
2
A-19
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APPENDIX A-3: Warnings and Test Functions
DCN6572)
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E
A-20
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APPENDIX A-4: Signal I/O Definitions
APPENDIX A-4: Signal I/O Definitions
Table A-4: Signal I/O Definitions
MODELS T703, T703U, 703E I/O Signal List for Latest Revision
Signal Name
Bit or
Description
Channel
Number
U11, J1004, control inputs, pins 1-6 = bits 0-5, read, default I/O address 321 hex
CONTROL_IN_1 –
CONTROL_IN_6
0–5
0 = input asserted
1 = de-asserted
Always 1
6–7
U14, J1006, control inputs, pins 1-6 = bits 0-5, read, default I/O address 325 hex
CONTROL_IN_7 –
CONTROL_IN_12
0–5
0 = input asserted
1 = de-asserted
Always 1
6–7
U17, J1008, control outputs, pins 1-8 = bits 0-7, write, default I/O address 321 hex
CONTROL_OUT_1 –
CONTROL_OUT_8
0–7
0 = output asserted
1 = de-asserted
U21, J1008, control outputs, pins 9-12 = bits 0-3, write, default I/O address 325 hex
CONTROL_OUT_9 –
CONTROL_OUT_12
0–3
0 = output asserted
1 = de-asserted
U7, J108, internal inputs, pins 9-16 = bits 0-7, read, default I/O address 322 hex
0–7 Spare
U8, J108, internal outputs, pins 1-8 = bits 0-7, write, default I/O address 322 hex
0–7 Spare
U24, J1017, A status outputs, pins 1-8 = bits 0-7, write, default I/O address 323 hex
ST_SYSTEM_OK
0
0 = system OK
1 = any alarm condition or in diagnostics mode
Spare
1
2
ST_CAL_ACTIVE
0 = executing sequence
1 = not executing sequence
ST_DIAG_MODE
3
4
0 = in diagnostic mode
1 = not in diagnostic mode
ST_TEMP_ALARM
0 = any temperature alarm
1 = all temperatures OK
0 = any pressure alarm
1 = all pressures OK
Spare
ST_PRESS_ALARM
5
6-7
U27, J1018, B status outputs, pins 1-8 = bits 0-7, write, default I/O address 324 hex
0-7 Spare
Relay board digital output (PCF8575), write, default I2C address 44 hex
RELAY_WATCHDOG
ZERO_AIR_PUMP
0
1
Alternate between 0 and 1 at least every 5 seconds to keep relay board active
0 = pump on for zero air
1 = off
Spare
2–5
A-21
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APPENDIX A-4: Signal I/O Definitions
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
MODELS T703, T703U, 703E I/O Signal List for Latest Revision
Signal Name
Bit or
Description
Channel
Number
PHOTO_REF_VALVE
ZA_SHUTOFF_VALVE
6
0 = photometer valve in reference position
1 = measure position
7
0 = open zero air shutoff valve
1 = close
O3_PUMP_ON
8
0 = pump on for photometer to measure O3
1 = off
9–13
14
Spare
PHOTO_LAMP_HEATER
O3_GEN_HEATER
0 = O3 photometer lamp heater on
1 = off
15
0 = O3 generator lamp heater on
1 = off
Front panel I2C keyboard, default I2C address 4E hex
MAINT_MODE
LANG2_SELECT
SEQUENCE_LED
AUTO_TIMER_LED
FAULT_LED
5 (input)
0 = maintenance mode
1 = normal mode
6 (input)
0 = select second language
1 = select first language (English)
8 (output)
9 (output)
0 = sequence LED on (executing sequence)
1 = off
0 = automatic timer LED on (automatic sequence timer enabled)
1 = off
10 (output) 0 = fault LED on
1 = off
AUDIBLE_BEEPER
14 (output) 0 = beeper on (for diagnostic testing only)
1 = off
Rear board primary MUX analog inputs
PHOTO_DET
0
1
Photometer detector reading
O3 generator reference detector reading
Spare
O3_GEN_REF_DET
2
PHOTO_SAMP_PRES
3
Photometer sample pressure
Temperature MUX
Regulator pressure
Photometer flow
4
REGULATOR_PRESS
PHOTO_FLOW
5
6
7–8
9
Spare
REF_4096_MV
4.096V reference from MAX6241
Spare
10-11
12
13
14
15
OUTPUT_FLOW
Output flow
Spare
DAC loopback MUX
Ground reference
REF_GND
Rear board temperature MUX analog inputs
Internal box temperature
BOX_TEMP
0
1
PHOTO_SAMP_TEMP
Photometer sample temperature
A-22
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APPENDIX A-4: Signal I/O Definitions
MODELS T703, T703U, 703E I/O Signal List for Latest Revision
Signal Name
Bit or
Description
Channel
Number
PHOTO_LAMP_TEMP
O3_GEN_TEMP
2
3
Photometer lamp temperature
O3 generator lamp temperature
Spare
4–7
Rear board DAC MUX analog inputs
DAC channel 0 loopback
DAC channel 1 loopback
DAC channel 2 loopback
DAC channel 3 loopback
Rear board analog outputs
Concentration output #1
Concentration output #2
Spare
DAC_CHAN_1
DAC_CHAN_2
DAC_CHAN_3
DAC_CHAN_4
0
1
2
3
CONC_OUT_1
CONC_OUT_2
0
1
2
3
TEST_OUTPUT
PHOTO_LAMP_DRIVE
O3_GEN_DRIVE
Test measurement output
I2C analog output (AD5321), default I2C address 18 hex
O3 photometer lamp drive (0–5V)
I2C analog output (AD5321), default I2C address 1A hex
O3 generator lamp drive (0–5V)
0
0
A-23
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APPENDIX A-5: Terminal Command DesignatorsTeledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
APPENDIX A-5: Terminal Command Designators
Table A-5: Terminal Command Designators
COMMAND
? [ID]
ADDITIONAL COMMAND SYNTAX
DESCRIPTION
Display help screen and commands list
Establish connection to instrument
Terminate connection to instrument
Display test(s)
LOGON [ID]
LOGOFF [ID]
password
SET ALL|name|hexmask
LIST [ALL|name|hexmask] [NAMES|HEX]
Print test(s) to screen
T [ID]
name
Print single test
CLEAR ALL|name|hexmask
Disable test(s)
SET ALL|name|hexmask
Display warning(s)
LIST [ALL|name|hexmask] [NAMES|HEX]
Print warning(s)
W [ID]
name
Clear single warning
CLEAR ALL|name|hexmask
Clear warning(s)
ZERO|LOWSPAN|SPAN [1|2]
Enter calibration mode
Execute automatic sequence
Compute new slope/offset
Exit calibration mode
ASEQ number
C [ID]
COMPUTE ZERO|SPAN
EXIT
ABORT
Abort calibration sequence
Print all I/O signals
LIST
name[=value]
Examine or set I/O signal
Print names of all diagnostic tests
Execute diagnostic test
Exit diagnostic test
LIST NAMES
D [ID]
ENTER name
EXIT
RESET [DATA] [CONFIG] [exitcode]
Reset instrument
LIST
Print setup variables
name[=value [warn_low [warn_high]]]
Modify variable
name="value"
CONFIG
Modify enumerated variable
Print instrument configuration
Enter/exit maintenance mode
Print current instrument mode
V [ID]
MAINT ON|OFF
MODE
The command syntax follows the command type, separated by a space character. Strings in [brackets] are optional
designators. The following key assignments also apply.
Table A-6: Terminal Key Assignments
TERMINAL KEY ASSIGNMENTS
ESC
Abort line
CR (ENTER)
Ctrl-C
Execute command
Switch to computer mode
COMPUTER MODE KEY ASSIGNMENTS
LF (line feed)
Ctrl-T
Execute command
Switch to terminal mode
A-24
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APPENDIX A-6: MODBUS Registers
APPENDIX A-6: MODBUS Registers
MODBUS
Register
Description
Units
Address
(dec., 0-based)
MODBUS Floating Point Input Registers
(32-bit IEEE 754 format; read in high-word, low-word order; read-only)
0
Output flow rate
LPM
PPB
mV
2
Photometer measured ozone concentration
Ozone generator reference detector reading
Ozone generator lamp drive
4
6
mV
8
Ozone generator lamp temperature
Regulator pressure
°C
10
12
14
16
18
20
22
24
26
28
30
32
PSIG
°C
Internal box temperature
Photometer detector measure reading
Photometer detector reference reading
Photometer sample flow rate
mV
mV
LPM
°C
Photometer lamp temperature
Photometer sample pressure
Inches Hg
°C
Photometer sample temperature
Photometer slope computed during zero/span bench calibration
Photometer offset computed during zero/span bench calibration
Ground reference
—
PPB
mV
Precision 4.096 mV reference
mV
MODBUS Discrete Input Registers
(single-bit; read-only)
0
System reset warning
1
Box temperature warning
2
Photometer lamp temperature warning
O3 generator lamp temperature warning
Photometer reference warning
3
4
5
Photometer lamp stability warning
O3 generator reference detector warning
Rear board communication warning
Relay board communication warning
6
7
8
9
O3 generator or photometer lamp I2C driver chip communication warning
Front panel communication warning
Analog calibration warning
10
11
12
13
14
15
16
System is OK (same meaning as SYSTEM_OK I/O signal)
O3 generator not yet stabilized
Calibration is active
Sequence is active
Regulator pressure warning 1
A-25
07223C DCN6572
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APPENDIX A-6: MODBUS Registers
Teledyne API - Models T703, T703U, 703E MENU TREES (05745E DCN6572)
MODBUS
Register
Description
Units
Address
(dec., 0-based)
MODBUS Coil Registers
(single-bit; read/write)
00-99
Trigger execution of sequence whose name begins with “00” - “99”. Turning a coil on executes a
sequence. Turning a coil off does nothing. When reading coils, the value indicates which
sequence is executing. If a coil is on, the sequence is executing; if off the sequence is not
executing. Supports nested sequences, so multiple sequence coils may be on simultaneously.
100
101
Turning coil on turns on purge. Turning coil off does nothing. When reading coil, the value
indicates whether purge is active. If on, purge is active; if off, purge is not active. Purge may be
invoked within a sequence, so purge coil may be on at the same time as a sequence coil.
Turning coil on puts instrument in standby. Turning coil off does nothing. When reading coil, the
value indicates whether instrument is in standby mode. If on, instrument is in standby; if off,
instrument is not in standby.
200-211
Connected to the control outputs (CONTROL_OUT_1– CONTROL_OUT_12). These coils may
be turned both on and off. Reading the coils indicates the current state.
1
Regulator pressure monitoring option.
A-26
07223C DCN6572
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APPENDIX B - Spare Parts
Use of replacement parts other than those supplied by Teledyne Advanced
Note
Note
Pollution Instrumentation (TAPI) may result in non-compliance with European
standard EN 61010-1.
Due to the dynamic nature of part numbers, please refer to the TAPI Website at
http://www.teledyne-api.com or call Customer Service at 800-324-5190 for more
recent updates to part numbers.
07223C DCN6572
B-1
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B-2
07223C DCN6572
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T703 Spare Parts List
(Reference: 07224 11/12/2010 2:01:02 PM)
PARTNUMBER
000940100
006120100
022710000
040010000
040030700
040300110
040300210
041200000
041200200
041440000
042010000
045230100
046740000
049290000
050700500
052400000
052910100
055220000
055730000
056420000
056430000
057360000
057660000
057670000
058021400
058110000
058330000
058330100
064130000
066970000
067240000
067300000
067300100
067300200
067900000
068810000
069500000
072150000
072230000
072250100
CN0000073
FL0000001
FL0000003
FL0000020
FM0000004
FM0000005
FM0000006
HW0000005
HW0000020
DESCRIPTION
CD, ORIFICE, .003 GREEN
ASSY,OZ.GEN LAMP (BIR) (OP5)
ABSORPTION TUBE, QUARTZ, (KB)
ASSY, FAN REAR PANEL
PCA, PRESS SENSORS (2X), PHOTO OPT
ASSY, CONFIG PLUG, 100-115V
ASSY, CONFIG PLUG, 220-240V
PCA, DET PREAMP w/OP20
PCA, DET PREAMP w/OP20
PCA, DC HTR/TEMP, BENCH
ASSY, SAMPLE THERMISTOR
PCA, RELAY CARD
ASSY, PUMP, 12VDC (OP63)
CLIP, THERMISTOR HOLDER
KIT, RELAY BD, O3 CAL
ASSY, BENCH UV LAMP, (BIR), CR *
ASSY, OPTICAL BENCH, OZONE
ASSY, VALVE W/CONN, VA 59
ASSY, REGULATOR, FILTERS, 20LPM
ASSY, FLOW CNTRL,5LPM, DILUTION
ASSY, FLOW CONTROL, PHOTO REF
ASSY, 3/8" VENT ADAPTER
ASSY, DFU FILTER
ASSY, CARBON SCRUBBER
PCA, MTHRBRD, CAL, GEN 5-I
ASSY, EXPENDABLES w/AKIT,*
ASSY, INT PUMP, 115V
ASSY, INT PUMP, 230V
ASSY, DC HEATER/THERM PCA, O3 GEN
PCA, INTRF. LCD TOUCH SCRN, F/P
CPU, PC-104, VSX-6154E, ICOP *
PCA, AUX-I/O BD, ETHERNET, ANALOG & USB
PCA, AUX-I/O BOARD, ETHERNET
PCA, AUX-I/O BOARD, ETHERNET & USB
LCD MODULE, W/TOUCHSCREEN
PCA, LVDS TRANSMITTER BOARD
PCA, SERIAL & VIDEO INTERFACE BOARD
ASSY. TOUCHSCREEN CONTROL MODULE
MANUAL, OPERATORS, T703
DOM, w/SOFTWARE, STD, T703 *
POWER ENTRY, 120/60 (KB)
FILTER, SS (KB)
FILTER, DFU (KB)
CARBON FILTER, DAU, 000 GRADE *(KB)
FLOWMETER (KB)
FLOW RESTRICTOR, 5000-1/4-10000CCM
FLOW RESTRICTOR, 5000-1/4-5000CCM
FOOT
SPRING
07223C DCN6572
B-3
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T703 Spare Parts List
(Reference: 07224 11/12/2010 2:01:02 PM)
PARTNUMBER
HW0000380
HW0000453
HW0000685
KIT000253
DESCRIPTION
HANDLE, CARRYING, 9.25", BLK *
SUPPORT, CIRCUIT BD, 3/16" ICOP
LATCH, MAGNETIC, FRONT PANEL
ASSY & TEST, SPARE PS37
ASSY & TEST, SPARE PS38
AKIT, UV LAMP P/S PCA, 041660100
QUARTZ DISC .75 DIAX1/16",(KB)
WINDOW, QUARTZ, 1/2"DIA, .063" THICK (KB
ORING, 2-006VT *(KB)
ORING, 2-120V
ORING, 2-110 S604-70
ORING, 2-011V FT10
ORING, 2-012V
ORING, 2-112S
ORING, 2-018V
ORING, 2-016V
RELAY, DPDT, (KB)
SWITCH, POWER, CIRC BREAK, VDE/CE *(KB)
PRESSURE SENSOR, 0-15 PSIA, ALL SEN
PRESSURE SENSOR, 0-100 PSIG, ALL SEN
REGULATOR
CHECK VALVE, B, 1/4" TUBE FITTINGS
POWER CORD, 10A(KB)
KIT000254
KIT000289
OP0000014
OP0000031
OR0000001
OR0000016
OR0000026
OR0000034
OR0000039
OR0000048
OR0000077
OR0000089
RL0000015
SW0000025
SW0000059
SW0000060
VA0000014
VA0000060
WR0000008
B-4
07223C DCN6572
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T703U Spare Parts List
(Ref: 077470000, 11/19/2012, 8:51a.m.)
PARTNUMBER
000941600
000941300
064990100
006120100
022710000
040010000
040030700
040030600
040300110
040300210
041200000
041200200
041440000
042010000
045230100
046740000
049290000
050700500
052400000
052910100
059430000
055730000
056420000
056430000
057360000
057660000
057670000
058021400
058110000
058330000
058330100
064130000
066970000
067240000
067300000
067300100
067300200
067900000
068810000
069500000
072150000
072230000
072250100
FL0000001
FL0000003
FL0000020
FM0000004
DESCRIPTION
CD, ORIFICE, .002
CD, ORIFICE, .006
ASSY, O3 GEN, 703U
ASSY,OZ.GEN LAMP (BIR) (OP5)
ABSORPTION TUBE, QUARTZ, (KB)
ASSY, FAN REAR PANEL (B/F)
PCA, PRESS SENSORS (2X), PHOTO OPT
PCA, PRESS SENSORS (1X), OZONE OPT
ASSY, CONFIG PLUG, 100-115V
ASSY, CONFIG PLUG, 220-240V
PCA, DET PREAMP w/OP20
PCA, DET PREAMP w/OP20
PCA, DC HTR/TEMP, BENCH
ASSY, SAMPLE THERMISTOR
PCA, RELAY CARD(KB)
ASSY, PUMP, 12VDC (PU63)
CLIP, THERMISTOR HOLDER
KIT, RELAY BD, O3 CAL, (KB)
ASSY, BENCH UV LAMP, (BIR), CR *
ASSY, OPTICAL BENCH, OZONE
ASSY, VALVE, VA59 w/o DIODE, 5" LEADS *
ASSY, REGULATOR, FILTERS, 20LPM, 703
ASSY, FLOW CNTRL,5LPM, DILUTION
ASSY, FLOW CONTROL, PHOTO REF
ASSY, 3/8" VENT ADAPTER
ASSY, DFU FILTER
ASSY, CARBON SCRUBBER
PCA, MTHRBRD, CAL, GEN 5-I (KB)
ASSY, EXPENDABLES w/AKIT,*
ASSY, INT PUMP, 115V
ASSY, INT PUMP, 230V
ASSY, DC HEATER/THERM PCA, O3 GEN
PCA, INTRF. LCD TOUCH SCRN, F/P
CPU, PC-104, VSX-6154E, ICOP *(KB)
PCA, AUX-I/O BD, ETHERNET, ANALOG & USB
PCA, AUX-I/O BOARD, ETHERNET
PCA, AUX-I/O BOARD, ETHERNET & USB
LCD MODULE, W/TOUCHSCREEN(KB)
PCA, LVDS TRANSMITTER BOARD
PCA, SERIAL & VIDEO INTERFACE BOARD
ASSY. TOUCHSCREEN CONTROL MODULE
MANUAL, OPERATORS, T703
DOM, w/SOFTWARE, STD, T703 *
FILTER, SS (KB)
FILTER, DFU (KB)
CARBON FILTER, DAU, 000 GRADE *(KB)
FLOWMETER (KB)
07223C DCN6572
B-5
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T703U Spare Parts List
(Ref: 077470000, 11/19/2012, 8:51a.m.)
PARTNUMBER
FM0000005
FM0000006
HW0000020
HW0000380
HW0000453
HW0000685
KIT000253
KIT000254
KIT000289
OP0000014
OP0000031
OR0000001
RL0000015
SW0000025
SW0000059
SW0000060
FM0000007
060720100
VA0000060
WR0000008
FT0000337
FT0000429
FT0000431
VA0000060
VA0000024
DESCRIPTION
FLOW RESTRICTOR, 5000-1/4-10000CCM NONE
FLOW RESTRICTOR, 5000-1/4-5000CCM BLACK
SPRING
HANDLE, CARRYING, 9.25", BLK *
SUPPORT, CIRCUIT BD, 3/16" ICOP
LATCH, MAGNETIC, FRONT PANEL (KB)
ASSY & TEST, SPARE PS37
ASSY & TEST, SPARE PS38
AKIT, UV LAMP P/S PCA, 041660100
QUARTZ DISC .75 DIAX1/16",(KB)
WINDOW, QUARTZ, 1/2"DIA, .063" THICK (KB)
ORING, 2-006VT *(KB)
RELAY, DPDT, (KB)
SWITCH, POWER, CIRC BREAK, VDE/CE *(KB)
PRESSURE SENSOR, 0-15 PSIA, ALL SEN
PRESSURE SENSOR, 0-100 PSIG, ALL SEN
REGULATOR, PRESSURE, 0-30PSI(KB)
ASSY, REGULATOR W/FITTING
CHECK VALVE, B, 1/4" TUBE FITTINGS
POWER CORD, 10A(KB)
TEE, BRASS, 1/4" BARB
ORIFICE, BARB, SS, 0.012" (KB)
TEE, TFE, 1/4"-1/4"-1/8"
CHECK VALVE, B, 1/4" TUBE FITTINGS
VALVE, MANIFOLD, 3-WAY CLIPPARD
B-6
07223C DCN6572
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Appendix C
Warranty/Repair Questionnaire
T703, T703U, 703E
(05747D DCN6572)
CUSTOMER:_______________________________
CONTACT NAME: __________________________
PHONE: _____________________________________
FAX NO. _____________________________________
SITE ADDRESS:____________________________________________________________________________
MODEL TYPE: ______________ SERIAL NO.:_________________ FIRMWARE REVISION:_____________
Are there any failure messages? _______________________________________________________________
_________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
________________________________________________________________________ (Continue on back if necessary)
PLEASE COMPLETE THE FOLLOWING TABLE:
PARAMETER
ACCEPTABLE
VALUE
RECORDED VALUE
Name in E-Series software
versions prior to v.C.1
Name in T-Series and in E-Series
w/software v. C.1 and higher.
1% OF TARG
50 – 1000 PPB
2 – 5 LPM
ACT
ACT
PPB
PPB
LPM
PSIG
PSIG
ºC
TARG
TAR
OUTPUT FLOW
REG PRESSURE
(n/a)
OUT FLW
15 ± 2 PSIG @ 5 LPM
8 ± 1 PSIG @ 5 LPM
20 – 35 ºC
REG PRES
O3 PRES 1, 2 (703U only)
BOX TMP
BOX TEMP
O3 GEN REF 2
O3 GEN DRIVE 2
O3 LAMP TEMP 2
PHOTO MEASURE 3
PHOTO REFERENCE 3
PHOTO FLOW 3
PHOTO LAMP TEMP 3
PHOTO SPRESS 3
PHOTO STEMP 3
PHOTO SLOPE 3
PHOTO OFFSET 3
(n/a)
O3GEN REF 2
O3GENDRV 2
O3LAMPTMP 2
PH MEAS 3
PH REF 3
0 – 5000 mV
mV
0 – 5000mV
mV
48 ± 1 ºC
ºC
2500 – 4700 mV
2500 – 4700 mV
0.720 – 0.880 LPM
58 ± 1 ºC
mV
mV
PH FLW 3
LPM
ºC
PH LTEMP 3
PH SPRES 3
PH STEMP 3
PH SLOPE 3
PH OFFST 3
PH STAB 3
-1” AMBIENT IN-HG-A
25 – 48ºC
IN-HG-A
ºC
1 ± 0.15
0 ± 10 PPB
PPB
PPB
<1 ppb on Zero Air
Depending on options installed, not all test parameters shown will be available in your calibrator.
1
Ozone Regulator Pressure
If ozone generator option installed.
If photometer option installed.
2
3
What is measured photometer flow rate ____________________________________________________ cc3/min
Teledyne API Technical Support
Email: [email protected]
PHONE: (858) 657-9800
TOLL FREE: (800) 324-5190
FAX: (858) 657-9816
07223C DCN6572
C-1
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Appendix C
Warranty/Repair Questionnaire
T703, T703U, 703E
(05747D DCN6572)
What is measured O3 generator flow rate? __________________________________________________ cc3/min
What is the photo reference value while generating SPAN: __________________ ZERO: __________________
What are the failure symptoms? ________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
What tests have you done trying to solve the problem? ______________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
Thank you for providing this information. Your assistance enables Teledyne Instruments to respond faster to the
problem that you are encountering.
OTHER NOTES: ____________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Teledyne API Technical Support
Email: [email protected]
PHONE: (858) 657-9800
TOLL FREE: (800) 324-5190
FAX: (858) 657-9816
C-2
07223C DCN6572
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APPENDIX D – Wire List and Electronic Schematics
07223C DCN6572
D-1
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D-2
07223C DCN6572
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T703 Interconnect List
(Reference: 073600100A DCN5882)
CONNECTION FROM
CONNECTION TO
PN
Cable Part
#
Signal
Assembly
PN
J/P Pin
Assembly
J/P Pin
0364901 CBL, AC Power, E-series
AC Line
Power Entry
CN0000073
CN0000073
CN0000073
CN0000073
SW0000025
SW0000025
CN0000073
SW0000025
SW0000025
CN0000073
SW0000025
SW0000025
CN0000073
L
N
Power Switch
Power Switch
Shield
Chassis
PS2 (+12)
SW0000025
SW0000025
SW0000025
052590000
068020000
068020000
068020000
068010000
068010000
068010000
045230100
045230100
045230100
L
N
AC Neutral
Power Grnd
Power Grnd
Power Entry
Power Entry
Power Entry
Power Switch
Power Switch
Power Entry
Power Switch
Power Switch
Power Entry
Power Switch
Power Switch
Power Entry
AC Line Switched
AC Neutral Switched
Power Grnd
AC Line Switched
AC Neutral Switched
Power Grnd
AC Line Switched
AC Neutral Switched
Power Grnd
L
N
J1
J1
J1
J1
J1
J1
J1
J1
J1
1
3
2
1
3
2
1
3
2
PS2 (+12)
PS2 (+12)
L
N
PS1 (+5, ±15)
PS1 (+5, ±15)
PS1 (+5, ±15)
Relay Board
Relay Board
Relay Board
L
N
03829
CBL, DC Power to Motherboard
DGND
+5V
AGND
+15V
AGND
-15V
+12V RET
+12V
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
045230100
045230100
045230100
045230100
045230100
045230100
045230100
045230100
045230100
J7
J7
J7
J7
J7
J7
J7
J7
J7
1
2
3
4
5
6
7
8
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
J15
J15
J15
J15
J15
J15
J15
J15
J15
1
2
3
4
5
6
7
8
9
Chassis Gnd
10 Motherboard
04105
CBL, Keyboard to Motherboard
Kbd Interupt
DGND
SDA
SCL
Shld
LCD Interface PCA
066970000
066970000
066970000
066970000
066970000
J1
J1
J1
J1
J1
7
2
5
6
Motherboard
Motherboard
Motherboard
Motherboard
058021400
058021400
058021400
058021400
058021400
J106
J106
J106
J106
J106
1
8
2
6
5
LCD Interface PCA
LCD Interface PCA
LCD Interface PCA
LCD Interface PCA
10 Motherboard
041760000 CBL, DC Power, EOS
DGND
+5V
+15V
AGND
-15V
+12V RET
+12V
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
045230100
045230100
045230100
045230100
045230100
045230100
045230100
J8
J8
J8
J8
J8
J8
J8
1
2
4
5
6
7
8
PS1 (+5, ±15)
PS1 (+5, ±15)
PS1 (+5, ±15)
PS1 (+5, ±15)
PS1 (+5, ±15)
PS2 (+12)
068010000
068010000
068010000
068010000
068010000
068020000
068020000
J2
J2
J2
J2
J2
J2
J2
3
1
6
4
5
3
1
PS2 (+12)
042790100 CBL, Heater/Thermistor
+12V RET
Relay Board
Relay Board
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Relay Board
Relay Board
045230100
045230100
058021400
058021400
058021400
058021400
058021400
058021400
045230100
045230100
J19
J19
J27
J27
J27
J27
J27
J27
J14
J14
1
2
6
Lamp HTR/Thrm
Lamp HTR/Thrm
Lamp HTR/Thrm
041440000
041440000
041440000
041440000
042010000
042010000
041440100
041440100
041440100
041440100
1
2
3
4
1
2
6
5
2
1
+12V
+5VANA
THERMISTOR 3
+5VANA
THERMISTOR 2
THERMISTOR 4
+5VANA
13 Lamp HTR/Thrm
Sample Therm
14 Sample Therm
12 O3 Gen HTR/Therm
7
5
2
1
O3 Gen HTR/Therm
O3 Gen HTR/Therm
O3 Gen HTR/Therm
+12V RET
+12V
07223C DCN6572
D-3
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T703 Interconnect List
(Reference: 073600100A DCN5882)
CONNECTION FROM
CONNECTION TO
PN
Cable Part
#
Signal
Assembly
PN
J/P Pin
Assembly
J/P Pin
042800100 CBL, Power & Signal Distribution
CH1
Motherboard
Motherboard
058021400
058021400
045230100
045230100
045230100
045230100
058021400
058021400
058021400
045230100
045230100
045230100
045230100
045230100
045230100
045230100
045230100
058021400
058021400
J109
6
UV Det - Bench
041200000
041200000
P3
P3
P3
P3
P1
P1
P1
P1
P1
P1
P1
J14
J14
J14
J14
P3
P3
P3
P3
1
4
2
3
1
2
4
2
5
3
6
8
1
2
3
2
3
1
4
AGND
+15V
-15V
+12V RET
+12V
CH6
J109 12 UV Det - Bench
J5
J5
J5
J5
J109
J109
J109
J9
J9
J9
Relay Board
Relay Board
Relay Board
Relay Board
Motherboard
Motherboard
Motherboard
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Motherboard
Motherboard
4
6
7
8
2
3
1
3
4
1
2
1
2
4
6
5
Bench Lamp Supply
Bench Lamp Supply
Fan
041200000
041200000
040010000
040010000
040030700
040030700
040030700
040030700
040030700
066970000
066970000
066970000
066970000
041200000
041200000
041200000
041200000
Fan
Photo Press/Flo
Photo Press/Flo
Photo Press/Flo
Photo Press/Flo
Photo Press/Flo
LCD Interface PCA
LCD Interface PCA
LCD Interface PCA
LCD Interface PCA
IZ Det
CH4
CH7
AGND
+15V
DGND
VCC
DGND
VCC
+15V
-15V
CH2
J9
J12
J12
J12
J12
J109
IZ Det
IZ Det
AGND
J109 11 IZ Det
04671
CBL, Motherboard to Transmitter Board (Multidrop Option)
GND
RX0
RTS0
TX0
CTS0
RS-GND0
RTS1
CTS1/485-
RX1
TX1/485+
RS-GND1
RX1
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
P12 Xmitter bd w/Multidrop
2
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
J4
J4
J4
J4
J4
J4
J4
J4
J4
J4
J4
J4
J4
J4
2
14
13
12
11
10
8
6
9
7
5
P12 14 Xmitter bd w/Multidrop
P12 13 Xmitter bd w/Multidrop
P12 12 Xmitter bd w/Multidrop
P12 11 Xmitter bd w/Multidrop
P12 10 Xmitter bd w/Multidrop
P12
P12
P12
P12
P12
P12
P12
P12
8
6
9
7
5
9
7
5
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
9
7
5
TX1/485+
RS-GND1
054840000 CBL, Valve Driver & Pump Power
+12V
+12V RET
+12V
+12V RET
+12V
+12V RET
Relay Board
045230100
045230100
045230100
045230100
045230100
045230100
J4
J4
J4
J4
J4
J4
1
2
3
4
5
6
Photo Ref Valve
Photo Ref Valve
O3 Valve
O3 Valve
Pump
055220000
055220000
055220000
055220000
047020000
047020000
1
2
1
2
1
2
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Pump
056310100 CBL, I2C Signal
+15V
AGND
SCL
SDA
Shield
SCL
SDA
SCL
SDA
+15V
AGND
IZS Lamp Supply
IZS Lamp Supply
IZS Lamp Supply
IZS Lamp Supply
Motherboard
IZS Lamp Supply
IZS Lamp Supply
Motherboard
041660100
041660100
041660100
041660100
058021400
041660100
041660100
058021400
058021400
045230100
045230100
P1
P1
P1
P1
J107
P1
1
2
3
4
6
3
4
3
5
4
3
Relay Board
Relay Board
Relay Board
Relay Board
045230100
045230100
045230100
045230100
045230100
041660500
041660500
041660500
041660500
041660500
041660500
J5
J5
J3
J3
J3
P1
P1
P1
P1
P1
P1
4
3
1
2
5
3
4
3
4
1
2
Relay Board
Bench Lamp Supply
Bench Lamp Supply
Bench Lamp Supply
Bench Lamp Supply
Bench Lamp Supply
Bench Lamp Supply
P1
J107
J107
J10
J10
Motherboard
Relay Board
Relay Board
05673
06737
CBL, Pump Adapter
115VAC
230VAC
Neutral
Jumper
Relay Board
Relay Board
Relay Board
Relay Board
045230100
045230100
045230100
045230100
J2
J2
J2
J2
1
5
2
3
Pump
Pump
Pump
Relay Board
037070000
037070000
037070000
045230100
1
2
3
4
J2
CBL, I2C to AUX I/O (Analog In Option)
ATX-
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
058021400
058021400
058021400
058021400
058021400
058021400
058021400
J106
J106
J106
J106
J106
J106
J106
1
2
3
4
5
6
8
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
067300000
067300000
067300000
067300000
067300000
067300000
067300000
J2
J2
J2
J2
J2
J2
J2
1
2
3
4
5
6
8
ATX+
LED0
ARX+
ARX-
LED0+
LED1+
D-4
07223C DCN6572
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T703 Interconnect List
(Reference: 073600100A DCN5882)
CONNECTION FROM
CONNECTION TO
PN
Cable Part
#
Signal
Assembly
PN
J/P Pin
Assembly
J/P Pin
06738
CBL, CPU COM to AUX I/O (USB Option)
RXD
DCD
DTR
TXD
DSR
GND
CTS
RTS
RI
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
COM1
COM1
COM1
COM1
COM1
COM1
COM1
COM1
1
2
3
4
5
6
7
8
Aux I/O PCA
0673000 or -02
J3
J3
J3
J3
J3
J3
J3
J3
J3
1
2
3
4
5
6
7
8
10
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
0673000 or -02
0673000 or -02
0673000 or -02
0673000 or -02
0673000 or -02
0673000 or -02
0673000 or -02
0673000 or -02
COM1 10 Aux I/O PCA
06738
CBL, CPU COM to AUX I/O (Multidrop Option)
RXD
DCD
DTR
TXD
DSR
GND
CTS
RTS
RI
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
COM1
COM1
COM1
COM1
COM1
COM1
COM1
COM1
1
2
3
4
5
6
7
8
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
Xmitter bd w/Multidrop
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
069500000
J3
J3
J3
J3
J3
J3
J3
J3
J3
1
2
3
4
5
6
7
8
10
COM1 10 Xmitter bd w/Multidrop
06739
CBL, CPU Ethernet to AUX I/O
ATX-
CPU PCA
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
LAN
LAN
LAN
LAN
LAN
LAN
LAN
LAN
1
2
3
4
5
6
7
8
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
Aux I/O PCA
067300100
067300100
067300100
067300100
067300100
067300100
067300100
067300100
J2
J2
J2
J2
J2
J2
J2
J2
1
2
3
4
5
6
7
8
ATX+
LED0
ARX+
ARX-
LED0+
LED1
LED1+
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
06741
06746
CBL, CPU USB to Front Panel
GND
CPU PCA
067240000
067240000
067240000
067240000
USB
USB
USB
USB
8
6
4
2
LCD Interface PCA
LCD Interface PCA
LCD Interface PCA
LCD Interface PCA
066970000
066970000
066970000
066970000
JP9
JP9
JP9
JP9
LUSBD3+
LUSBD3-
VCC
CPU PCA
CPU PCA
CPU PCA
CBL, MB TO 06154 CPU
GND
RX0
RTS0
TX0
CTS0
RS-GND0
RTS1
CTS1/485-
RX1
TX1/485+
RS-GND1
RX1
TX1/485+
RS-GND1
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
058021400
P12
2
Shield
P12 14 CPU PCA
P12 13 CPU PCA
P12 12 CPU PCA
P12 11 CPU PCA
P12 10 CPU PCA
P12
P12
P12
P12
P12
P12
P12
P12
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
067240000
COM1
COM1
COM1
COM1
COM1
COM2
COM2
COM2
COM2
COM2
485
1
8
4
7
6
8
7
1
4
6
1
2
3
8
6
9
7
5
9
7
5
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
CPU PCA
485
485
WR256
CBL, Transmitter to Interface
LCD Interface PCA
066970000
J15
Transmitter PCA
068810000
J1
07223C DCN6572
D-5
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D-6
07223C DCN6572
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D-7
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1
2
3
4
+15V
R2
1.1K
S1
D
C
B
A
VR2
D
C
B
1
2
3
4
5
6
ASCX PRESSURE SENSOR
2
3
C2
1.0UF
1
LM4040CIZ
TP4 TP5
S1/S4_OUT S2_OUT
TP3
S3_OUT
TP2
10V_REF
TP1
GND
+15V
J1
3
2
1
6
5
4
S2
1
2
3
4
5
6
ASCX PRESSURE SENSOR
MINIFIT6
+15V
R1
499
S3
VR1
1
2
3
FLOW SENSOR
FM_4
2
3
C1
1.0UF
CN_647 X 3
1
+15V
LM4040CIZ
S4
C3
1.0
1
2
3
4
CON4
SCH, PCA 04003, PRESS/FLOW, 'E' SERIES
The information herein is the
property of API and is
APPROVALS
DATE
submitted in strictest con-
fidence for reference only.
Unauthorized use by anyone
for any other purposes is
prohibited. This document or
any information contained
in it may not be duplicated
without proper authorization.
DRAWN
A
CHECKED
APPROVED
SIZE DRAWING NO.
REVISION
B
04354
D
LAST MOD.
3-Dec-2007
SHEET
1
1
of
1
2
3
4
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1
2
3
4
R
1
S
E
E
T
A
B
L
E
C
1
D
C
B
A
D
C
B
A
1
V
0
0
p
f
-
1
5
R
6
0
1
.
K
C
4
1
0
.
u
f
V
R
1
P
D
H
1
O
T
O
C
E
L
L
R
4
T
T
P
_
1
P
5
K
-
1
5
V
5
K
T
E
S
L
U
U
1
R
5
0
R
2
2
3
1
1
0
R
3
0
6
PHOTO_OUT
1
.
0
K
1
1
.
K
2
3
4
5
6
O
P
A
1
2
4
C
3
0
+
C
N
1
.
u
1
5
V
.
P
.
-
1
5
V
1
5
V
V
C
C
C
5
0
.
1
u
f
C
1
2
I
C
R
O
I
T
+
1
5
V
.
0
u
f
V
C
C
U
2
1
5
V
V
R
1
2
4
1
2
3
4
5
6
1
6
N
C
D
N
N
D
D
0
K
O
S
D
D
L
T
6
0
S
3
-
2
.
5
1
1
1
1
1
1
9
5
4
3
2
1
0
V
C
1
2
REF_2.5V
PHOTO_OUT
I
N
O
U
T
R
R
E
E
-
S
S
C
D
C
N
C
0
6
1
I
I
N
N
N
N
.
u
f
-
D
D
V
C
C
N
L
T
C
2
4
1
3
C
0
.
1
P
C
A
V
E
R
S
I
O
N
T
A
B
L
E
P
4
C
1
A
2
R
4
2
1
0
0
0
-
-
0
0
0
0
0
0
.
9
9
4
1
2
0
0
2
.
0
PCA, UV DETECTOR PREAMP
The information herein is the
property of API and is
A
P
P
R
O
V
A
L
S
D
A
T
E
submitted in strictest con-
fidence for reference only.
Unauthorized use by anyone
for any other purposes is
prohibited. This document or
any information contained
in it may not be duplicated
without proper authorization.
D
R
A
W
N
U
S
A
C
H
E
C
K
E
D
S
I
E
D
R
A
W
I
N
N
O
.
R
E
V
I
S
I
O
N
A
04420
B
A
P
P
R
O
V
E
D
L
A
3
S
T
u
O
D
0
.
S
H
E
E
1
T
-
A
g
-
2
0
4
1
o
f
1
2
3
4
07223C DCN6572
D-9
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1
2
3
4
5
6
P2
LAMP OUTPUT
1
2
3
4
5
6
7
8
T1
PE-6196
TP2
TEST_PLUG
R5
TIP126
Q1
P1
D
C
B
A
D
C
B
A
4.7K, 2W
+15V
1
2
3
4
C4
.01
D3
D4
R4
100
RP2D
4.7K
TP4
TEST_PLUG
C3
220
C2
0.1
+
1N4148
D6
1N4148
D5
HEADER 4
D1
1N4148
IRF520
Q2
IRF520
Q3
1N4148
1N4148
R2
R3
D2
1N4148
5.1K
5.1K
R6
330
VCC
VCC
RP2C
4.7K
R7
3.9K
U3
Vdd GND
C6
.033
1
2
3
4
8
7
6
5
A0
A1
Vout
SDA
SCL
PD
TP1
TEST_PLUG
+15V
JP1
JUMPER2
U1B
LM358
RP2A
4.7K
AD5321-RM8
1
2
6
5
R14
10
7
+15V
RP2B
4.7K
3
4
C5
.01
3
16
2
VREF
SYNC
VREF
+15V
R12
22
11
14
8
OUTPUT A
NONINV. INPUT
CT
R13
22
5
R1
2.21K
OUPUT B
TP3
TEST_PLUG
R15
150
7
SOFT START
INV. INPUT
SHUTDOWN
OSC. OUTPUT
DISCHARGE
RT
VR2
+15V
1
6
VCC
3
2
C9
0.1
C11
.0047
C12
0.1
10
4
12
9
R16
3.9K
1
GROUND
COMP
+15V
C7
1.0UF
U1A
2
3
C8
0.1
1
U2
SG3525
LM4040CIM3
LM358
+15V
C13
0.1
C1
470
+
C10
0.1
NOTE: THIS SCHEMATIC APPLIES TO THE FOLLOWING PCA'S:
CHANGE NOTES
PCA#
04166-0000
NOTE
M400E BENCH AND IZS LAMP SUPPLY
SHUNT INSTALLED IN J1 FOR BENCH SUPPLY
SHUNT NOT INSTALLED IN J1 FOR IZS SUPPLY
SCH, UV LAMP DRIVER, M450
REV. DATE
8/1/02
CHANGE DESCRIPTION
INITIAL
KL
The information herein is the
property of API and is
APPROVALS
DATE
A
INITIAL RELEASE
submitted in strictest con-
fidence for reference only.
Unauthorized use by anyone
for any other purposes is
prohibited. This document or
any information contained
in it may not be duplicated
without proper authorization.
DRAWN
KL
3/4/97
CHECKED
SIZE DRAWING NO.
REVISION
B
04421
A
APPROVED
LAST MOD.
1-Aug-2002
SHEET
1
1
of
1
2
3
4
5
6
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1
2
3
4
D
C
B
A
D
C
B
A
R1
J1
30R, 50W
1
2
3
4
5
6
TH1
HEADER 6
THERMISTOR
Rev
A
Date
8/1/02
Change Description
Eng
KL
Initial release for PCA schematic
SCH, DC HEATER/THERMISTOR
The information herein is the
property of API and is
APPROVALS
DRAWN
DATE
submitted in strictest con-
fidence for reference only.
Unauthorized use by anyone
for any other purposes is
prohibited. This document or
any information contained
in it may not be duplicated
without proper authorization.
CHECKED
SIZE DRAWING NO.
REVISION
B
04422
A
APPROVED
LAST MOD.
SHEET
1-Aug-2002
1
1
of
1
2
3
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D-11
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1
2
3
4
5
6
G
e
n
e
r
a
l
T
r
a
c
e
W
i
d
t
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s
1
2
3
4
.
.
.
.
V
c
c
(
+
5
V
)
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