Honeywell Stud Sensor SC1000 User Manual
Sensing and Control  
SC Instrumentation  
Signal Conditioning,  
Self-Calibrating  
Digital Indicators  
Model SC2001  
Models SC1000 & SC2000  
Model SC3004  
Sensotec Sensors  
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Contents  
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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Chapter 1  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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1.1 About This Manual . . . . . . . . . . . . . . . . . . . . . . .  
1.1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.1.3 Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.2 Related Documents . . . . . . . . . . . . . . . . . . . . . .  
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1.3 What is the SC Series? . . . . . . . . . . . . . . . . . . . .  
1.3.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3.2 Chassis Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3.3 Channel Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.4 What is Signature Calibration? . . . . . . . . . . . . . .  
1.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.4.2 Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.4.3 Information Stored . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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Chapter 2  
Getting Started Quickly . . . . . . . . . . . . . . . . . . . . . .  
2.1 Locate Required Parts and Information . . . . . . .  
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2.2 Connect the Transducer to the Correct Channel of the Instru-  
ment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.3 Turn on the Instrument . . . . . . . . . . . . . . . . . . . .  
2.4 Use the SETUP Menus to Enter Transducer Information  
2.5 Calibrate the Transducers to Their Channels . . .  
2.6 The SC Series Instrument is Ready for Use . . . .  
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Chapter 3  
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . .  
3.2 INITIALIZE Mode . . . . . . . . . . . . . . . . . . . . . . . .  
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3.3 RUN Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3.2 [VALUE] button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3.3 [CLEAR] Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3.4 [CHANNEL] button . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3.5 [TARE] button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3.6 Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.4 ERROR mode . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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3.5 SETUP Menu mode . . . . . . . . . . . . . . . . . . . . . .  
3.5.1 Available Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.5.2 Entering and Exiting the SETUP Menu mode . . . . . . .  
3.5.3 Moving Through SETUP Menus and Menu Items . . . .  
3.5.4 Exiting the SETUP Menu mode . . . . . . . . . . . . . . . . . .  
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Chapter 4  
Chassis Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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4.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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4.3 Models SC1000 and SC2000 . . . . . . . . . . . . . . .  
4.3.1 Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.2 External Arrangement . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.3 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.4 Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.5 Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.6 Bench Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.7 Case Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.8 Internal Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.9 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.10 Vehicle Power Option . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3.11 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4 Model SC2001 . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.1 Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.2 External Arrangement . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.4 Case Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.5 Internal Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.6 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.7 Vehicle Power Option . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.8 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5 Model SC3004 . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.1 External Arrangement . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.2 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.3 Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.4 Bench Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.5 Case Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.6 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.7 Internal Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.8 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.9 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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Chapter 5  
System Connector . . . . . . . . . . . . . . . . . . . . . . . . . .  
5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5.2 System Connector Pinout . . . . . . . . . . . . . . . . .  
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5.3 Function Input Pins . . . . . . . . . . . . . . . . . . . . . . .  
5.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5.3.2 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5.4 Limit Output Pins . . . . . . . . . . . . . . . . . . . . . . . .  
5.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5.4.2 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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Chapter 6  
System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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6.2 Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
6.2.1 SOFTWARE REVISIONMenu Item . . . . . . . . . . . . . . . . . .  
6.2.2 CONFIGURATIONSub-Menu . . . . . . . . . . . . . . . . . . . . . .  
6.2.3 DIAGNOSTICSSub-Menu . . . . . . . . . . . . . . . . . . . . . . . .  
6.2.4 INSTALL CHANNELMenu Item . . . . . . . . . . . . . . . . . . . .  
6.2.5 DELETE CHANNELMenu Item . . . . . . . . . . . . . . . . . . . . .  
6.2.6 DEFAULT CHANNELMenu Item . . . . . . . . . . . . . . . . . . . .  
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Chapter 7  
Serial Communications . . . . . . . . . . . . . . . . . . . . . .  
7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
7.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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7.3 Communications Protocol . . . . . . . . . . . . . . . . . .  
7.3.1 RS-232 vs. RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . .  
7.3.2 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
7.4 Serial Com Menu . . . . . . . . . . . . . . . . . . . . . . . .  
7.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
7.4.2 INTERFACEMenu Item . . . . . . . . . . . . . . . . . . . . . . . . .  
7.4.3 ADDRESSMenu Item . . . . . . . . . . . . . . . . . . . . . . . . . . .  
7.4.4 BAUD RATEMenu Item . . . . . . . . . . . . . . . . . . . . . . . . .  
7.4.5 AUTO LINE-FEEDMenu Item . . . . . . . . . . . . . . . . . . . .  
7.4.6 TRANSMIT TESTMenu Item . . . . . . . . . . . . . . . . . . . . .  
7.4.7 LEAVE MENUMenu Item . . . . . . . . . . . . . . . . . . . . . . . .  
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Chapter 8  
Display Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
8.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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8.2 Menu Items for Models SC1000, SC2000, SC2001  
8.2.1 UPPER CHANNELMenu Item . . . . . . . . . . . . . . . . . . . . .  
8.2.2 LOWER CHANNEL Menu Item . . . . . . . . . . . . . . . . . . . .  
8.2.3 LOWER MODE Menu Item . . . . . . . . . . . . . . . . . . . . . . . .  
8.2.4 DISPLAY DISABLE Menu Item . . . . . . . . . . . . . . . . . . .  
8.3 Menu Items for Model SC3004 . . . . . . . . . . . . . .  
8.3.1 POWER-ON CHANNELMenu Item . . . . . . . . . . . . . . . . . .  
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Chapter 9  
Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
9.1 Understanding Limits, Set Points and Return Points  
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9.2 Limit Operation . . . . . . . . . . . . . . . . . . . . . . . . . .  
9.2.1 Actions When Activated . . . . . . . . . . . . . . . . . . . . . . . .  
9.2.2 Scan Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
9.3 Limit Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
9.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
9.3.2 LIMIT.ENABLEMenu Item . . . . . . . . . . . . . . . . . . . . . .  
9.3.3 LIMIT.SETPOINTMenu Item . . . . . . . . . . . . . . . . . . . .  
9.3.4 LIMIT.RETURN PNTMenu Item . . . . . . . . . . . . . . . . . . .  
9.3.5 LIMIT.ENERGIZEMenu Item . . . . . . . . . . . . . . . . . . . .  
9.3.6 LIMIT.LATCHINGMenu Item . . . . . . . . . . . . . . . . . . . .  
9.3.7 LIMIT.CHANNELMenu Item . . . . . . . . . . . . . . . . . . . . .  
9.3.8 LIMIT.SOURCEMenu Item . . . . . . . . . . . . . . . . . . . . . .  
9.3.9 LEAVE MENUMenu Item . . . . . . . . . . . . . . . . . . . . . . . .  
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Chapter 10  
Strain-Gage Input Channel . . . . . . . . . . . . . . . . . . . .  
10.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
10.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
10.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . .  
10.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .  
10.5 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . .  
10.5.1 OPERATIONSub-Menu . . . . . . . . . . . . . . . . . . . . . . . .  
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10.5.2 DISPLAY SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . .  
10.5.3 AUXn FUNCTIONMenu Items . . . . . . . . . . . . . . . . . . . .  
10.5.4 CALIBRATION TYPEMenu Item . . . . . . . . . . . . . . . . . .  
10.5.5 CALIBRATION DATASub-Menu . . . . . . . . . . . . . . . . . .  
10.5.6 CALIBRATEMenu Item . . . . . . . . . . . . . . . . . . . . . . . .  
10.5.7 DAC SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . . . . . .  
10.5.8 SIGNATURE MODULESub-Menu . . . . . . . . . . . . . . . . . .  
10.5.9 DIAGNOSTICSSub-Menu . . . . . . . . . . . . . . . . . . . . . . .  
10.6 Analog Output Configuration . . . . . . . . . . . . . .  
10.6.1 Identifying the Output Type . . . . . . . . . . . . . . . . . . . .  
10.6.2 Channel Menu Items . . . . . . . . . . . . . . . . . . . . . . . . .  
10.6.3 Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
10.7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  
10.7.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
10.7.2 Common Problems and Solutions . . . . . . . . . . . . . . .  
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Chapter 11  
AC/AC-LVDT Input Channel . . . . . . . . . . . . . . . . . . .  
11.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
11.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
11.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . .  
11.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .  
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11.5 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . .  
11.5.1 OPERATIONSub-Menu . . . . . . . . . . . . . . . . . . . . . . . . .  
11.5.2 DISPLAY SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . .  
11.5.3 AUXn FUNCTIONMenu Items . . . . . . . . . . . . . . . . . . . .  
11.5.4 CALIBRATION TYPEMenu Item . . . . . . . . . . . . . . . . . .  
11.5.5 CALIBRATION DATASub-Menu . . . . . . . . . . . . . . . . . .  
11.5.6 CALIBRATEMenu Item . . . . . . . . . . . . . . . . . . . . . . . .  
11.5.7 DAC SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . . . . . .  
11.5.8 DIAGNOSTICSSub-Menu . . . . . . . . . . . . . . . . . . . . . . .  
11.6 Electrical Null and Transducer Mounting . . . . .  
11.6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
11.6.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
11.7 Analog Output Configuration . . . . . . . . . . . . . .  
11.7.1 Identifying the Output Type . . . . . . . . . . . . . . . . . . . .  
11.7.2 Channel Menu Items . . . . . . . . . . . . . . . . . . . . . . . . .  
11.7.3 Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
11.8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  
11.8.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
11.8.2 Common Problems and Solutions . . . . . . . . . . . . . . .  
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Chapter 12  
High-Level Input Channel . . . . . . . . . . . . . . . . . . . .  
12.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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12.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.2.1 Channel Connector . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.2.2 Bi-polar Voltage Amplifiers . . . . . . . . . . . . . . . . . . . . .  
12.2.3 “3-wire Voltage” Amplifiers . . . . . . . . . . . . . . . . . . . . .  
12.2.4 “3-wire Voltage” Amplifiers with Single-wire Shunt Cal  
12.2.5 “3-wire Current” Amplifiers . . . . . . . . . . . . . . . . . . . .  
12.2.6 “2-wire Current” Amplifiers with Buffered Shunt Cal .  
12.2.7 “2-wire Current” Amplifiers with Single-wire Shunt Cal  
12.2.8 Low Voltage DC-DC LVDTs . . . . . . . . . . . . . . . . . . . .  
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12.3 Excitation and Signal Jumpers . . . . . . . . . . . . .  
12.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.3.2 Setting Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.4 Calibration Procedure . . . . . . . . . . . . . . . . . . . .  
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12.5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .  
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12.6 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.6.1 OPERATIONSub-Menu . . . . . . . . . . . . . . . . . . . . . . . .  
12.6.2 DISPLAY SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . .  
12.6.3 AUXn FUNCTIONMenu Items . . . . . . . . . . . . . . . . . . .  
12.6.4 CALIBRATION TYPEMenu Item . . . . . . . . . . . . . . . . . .  
12.6.5 CALIBRATION DATASub-Menu . . . . . . . . . . . . . . . . . .  
12.6.6 CALIBRATEMenu Item . . . . . . . . . . . . . . . . . . . . . . . .  
12.6.7 DAC SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . . . . .  
12.6.8 DIAGNOSTICSSub-Menu . . . . . . . . . . . . . . . . . . . . . .  
12.7 Analog Output Configuration . . . . . . . . . . . . . . .  
12.7.1 Identifying the Output Type . . . . . . . . . . . . . . . . . . . .  
12.7.2 Channel Menu Items . . . . . . . . . . . . . . . . . . . . . . . . .  
12.7.3 Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  
12.8.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12.8.2 Common Problems and Solutions . . . . . . . . . . . . . . .  
109  
109  
111  
112  
113  
115  
117  
119  
120  
121  
121  
121  
121  
122  
122  
122  
Chapter 13  
Relay Output Channel . . . . . . . . . . . . . . . . . . . . . . . .  
123  
13.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
13.1.1 First Channel Installed . . . . . . . . . . . . . . . . . . . . . . . .  
13.1.2 Second Channel Installed . . . . . . . . . . . . . . . . . . . . .  
13.1.3 Third Channel Installed . . . . . . . . . . . . . . . . . . . . . . .  
13.1.4 Fourth Channel Installed . . . . . . . . . . . . . . . . . . . . . .  
13.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
123  
123  
123  
123  
123  
124  
13.3 Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . .  
13.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .  
13.5 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . .  
13.5.1 DIAGNOSTICSSub-Menu . . . . . . . . . . . . . . . . . . . . . .  
125  
126  
127  
127  
Chapter 14  
DAC Output Channel . . . . . . . . . . . . . . . . . . . . . . . .  
14.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
14.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
14.3 Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . .  
14.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .  
129  
129  
130  
131  
132  
14.5 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . . .  
14.5.1 DAC SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . . . . .  
14.5.2 DIAGNOSTICSSub-Menu . . . . . . . . . . . . . . . . . . . . . .  
14.6 Analog Output Configuration . . . . . . . . . . . . . . .  
14.6.1 Identifying the Output Type . . . . . . . . . . . . . . . . . . . .  
14.6.2 Channel Menu Items . . . . . . . . . . . . . . . . . . . . . . . . .  
14.6.3 Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
14.7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  
14.7.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
14.7.2 Common Problems and Solutions . . . . . . . . . . . . . . .  
133  
133  
134  
135  
135  
135  
135  
136  
136  
136  
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Chapter 15  
Split Display Virtual Channel . . . . . . . . . . . . . . . . . .  
15.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
15.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
15.3 Setup Procedure . . . . . . . . . . . . . . . . . . . . . . .  
15.4 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . .  
15.5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  
139  
139  
139  
139  
140  
140  
Chapter 16  
Mathematics Virtual Channel . . . . . . . . . . . . . . . . .  
16.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
16.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
16.3 Setup Procedure . . . . . . . . . . . . . . . . . . . . . . .  
143  
143  
144  
145  
16.4 Channel Menu . . . . . . . . . . . . . . . . . . . . . . . . .  
16.4.1 SENSOCODE P/N Menu Item . . . . . . . . . . . . . . . . . . . .  
16.4.2 USER VALUESSub-Menu . . . . . . . . . . . . . . . . . . . . . . .  
16.4.3 VIEW SENSOCODE Menu Item . . . . . . . . . . . . . . . . . . .  
16.4.4 VIEW COMMANDS Sub-Menu . . . . . . . . . . . . . . . . . . . .  
16.4.5 DISPLAY SETUPSub-Menu . . . . . . . . . . . . . . . . . . . . .  
16.4.6 POWER-ON SOURCEMenu Item . . . . . . . . . . . . . . . . . . .  
16.5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  
146  
146  
146  
146  
146  
147  
148  
149  
Chapter 17  
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
17.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
17.2 Error Message List . . . . . . . . . . . . . . . . . . . . . .  
151  
151  
152  
Chapter 18  
Setup Menu Reference . . . . . . . . . . . . . . . . . . . . . . .  
18.1 Navigation instructions . . . . . . . . . . . . . . . . . . .  
157  
157  
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
169  
173  
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Chapter 1  
Introduction  
1.1 About This Manual  
1.1.1 Scope  
This manual will explain the setup, features and operation of 3rd generation SC  
Series instruments, specifically the models SC1000, SC2000, SC2001 and  
SC3004.  
Further information about customer specific programming and setup will be  
explained on the Customer Information Sheet that is provided with every instru-  
ment.  
1.1.2 Conventions  
This manual uses the following conventions to present information:  
[TEXT IN BRACKETS]  
The label of a front panel button.  
DISPLAY  
Text that appears on the display, such as error  
messages or menu items.  
->  
Indicates that what follows is an item from a  
sub-menu, such as SYSTEM MENU -> DIAGNOSTICS.  
1.1.3 Organization  
Chapter 1, “Introduction”, offers general information about the SC Series and  
this instruction manual.  
Chapter 2, “Getting Started Quickly”, provides an overview of how to get  
started quickly if your instrument and transducers were ordered at the same time,  
or if Signature Calibration is used.  
Chapter 3, “Operating Modes”, discusses the significant features of the SC  
Series and operation procedures when the instrument is in the INITIALIZE, RUN,  
ERROR or SETUP modes.  
Chapter 4, “Chassis Models”, explains the differences between the SC1000,  
SC2000, SC2001 and SC3004 chassis. Information relating to the hardware  
chassis such as panel and rack mounting is given.  
Chapter 5, “System Connector”, contains information about wiring to the 25-pin  
System connector to access the Limit Outputs, Function Inputs and serial commu-  
nications.  
Chapter 6, “System Menu”, discusses the System Menu which allows you to  
examine and change settings that affect the operation of the chassis.  
Chapter 7, “Serial Communications”, briefly describes RS-232 and RS-485  
communications. It also shows how to use the SERIAL COM Menu to examine the  
settings and test the RS-232 or RS-485 communications.  
Chapter 8, “Display Menu”, describes the Display Menu which allows you to  
change what is displayed on the lower line of the SC2000 and SC2001 instru-  
ments.  
Chapter 9, “Limits”, discusses how the limits operate and describes how to alter  
their settings via the Limit Menus.  
Chapter 10, “Strain-Gage Input Channel”, explains how to wire, configure,  
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operate and calibrate Strain-Gage Input Channels with your transducers.  
Chapter 11, “AC/AC-LVDT Input Channel”, explains how to wire, configure, operate  
and calibrate AC/AC-LVDT Input Channels with your transducers.  
Chapter 12, “High-Level Input Channel”, explains how to wire, configure, operate  
and calibrate High-Level Input Channels with your amplified transducers, in-line ampli-  
fiers, or DC-DC LVDTs.  
Chapter 13, “Relay Output Channel”, describes how a Relay Output channel can  
enable additional limits in the instrument.  
Chapter 14, “DAC Output Channel”, explains the configuration and operation of  
additional digital-to-analog voltage or current outputs.  
Chapter 15, “Split Display Virtual Channel”, shows how you can display two values  
from any of the channels in the instrument at the same time.  
Chapter 16, “Mathematics Virtual Channel”, describes the flexibility of customer-  
specific SensoCode programming.  
Chapter 17, “Error Messages”, lists error messages that the instrument may display,  
describes their causes and, where possible, suggests solutions.  
Chapter 18, “Setup Menu Reference”, is a list of all SETUP menus and a cross-ref-  
erence to related information in this instruction manual.  
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1.2 Related Documents  
Customer Information Sheet  
Every instrument is shipped with a Customer Information Sheet which documents  
important information specific to each instrument, such as:  
•
•
•
•
part number,  
date of manufacture,  
list of all installed channels and their setup information,  
customer specific SensoCode programming of Mathematics Virtual channels  
and operation notes.  
Communications Guide  
The “SC Series Communications Guide”, document 008-0610-00, describes in  
detail how to communicate with an SC Series instrument using RS-232 and RS-  
485. Wiring diagrams, sample programs, and descriptions of each command are  
included.  
A printed copy of this document is available for order, or you may download it from  
http://www.honeywell.com/sensotec.  
Supplemental Instructions  
If an instrument is configured with Mathematics Virtual channels, one or more sets  
of Supplemental Instructions may be included. These instructions contain impor-  
tant information about which indicator lights, Function Input pins and/or Limit Out-  
put pins of the System connector are used by the Mathematics Virtual channel.  
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1.3 What is the SC Series?  
The SC Series of Signal Conditioners/Indicators are versatile, multi-channel devices  
designed to operate with many different types of sensors. Several different chassis  
types, Input channels, and Output channels are available to allow the configuration of  
an SC instrument to meet a variety of measurement and control needs. The operation  
of an SC instrument is based on digital technology to provide improved accuracy,  
superior ease of setup, and a wealth of features.  
1.3.1 Features  
The main features of the models SC1000, SC2000, SC2001 and SC3004 are:  
•
Four alarm limits (optional sixteen), with versatile setup (not available on Model  
SC1000)  
•
Automatic setup, calibration, and scaling of strain-gage sensors through the use  
TM  
of Signature Calibration  
•
•
•
•
•
•
Field selectable, digital, low-pass filtering (“damping”) on each Input channel  
Up to ±50,000 part resolution  
Field selectable five-, six - or seven-digit (9,999,999 maximum) display  
RS-232 communications standard (RS-485 optional)  
Local or remote setup using the RS-232 or RS-485 port  
Push-button on/off tare feature  
1.3.2 Chassis Models  
Several models (i.e. chassis types) are available:  
•
•
•
•
SC1000: 1 to 4 physical channels, 3/8 DIN case, no limits or peak detector  
SC2000: 1 to 4 physical channels, 3/8 DIN case  
SC2001: 1 to 4 physical channels, portable case  
SC3004: 1 to 14 physical channels, 19” rack mount case, 1 to 3 quad-line displays  
1.3.3 Channel Types  
Channels can be one of three types: Input, Output, or Virtual  
Input Channels  
Input channels are hardware circuit boards with a unique channel number. Currently,  
they are available for the following types of sensors:  
•
•
Strain-gage sensors, such as unamplified pressure transducers and load cells  
Sensors with voltage outputs, such as transducers with the Option 2a, 2b, 2c, 2d,  
2g, 2j, 2k, 2p, 2t or 2y internal amplifier  
•
Sensors with current outputs, such as transducers with the Option 2j, 2k or 2n  
internal amplifier  
•
•
AC-AC LVDTs (Linear Variable Displacement Transducers)  
DC-DC LVDTs  
Output Channels  
Virtual Channels  
Output channels are hardware circuit boards with a unique channel number. They  
include:  
•
Relay Output channels, which can add additional limits to the standard four (N/A  
on Model SC1000).  
•
DAC Output channels, which provide additional voltage or current outputs.  
Virtual channels are software based devices that occupy a channel number, but not a  
physical slot, in an instrument.  
•
Split Display Virtual channels allow the displaying of any two channel’s track, peak  
or valley values at the same time.  
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•
Mathematics Virtual channels run small programs written in an interpretive  
language called SensoCode. This provides great flexibility which allows the  
SC Series to do many jobs which otherwise requires a personal computer or  
PLC.  
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1.4 What is Signature Calibration?  
1.4.1 Overview  
A small integrated circuit is located either inside the transducer, in an in-line package  
between the instrument and the transducer, or in the connector of a cable. All data  
necessary to set up the transducer with the instrument are stored (even linearity data),  
and setup is automatic when a new transducer is connected to the instrument.  
The Strain-Gage Input channel of the SC Series is designed to operate with Signature  
Calibration. It will automatically set itself up with transducers which contain the mem-  
ory device, but can also be set up using a front-panel interactive procedure. The Sig-  
nature Calibration module can also be programmed from the instrument’s front panel.  
Signature Calibration is only available with unamplified strain-gage transducers.  
1.4.2 Benefits  
The benefits are:  
•
The transducer’s Calibration Record is always located where it is needed most...  
with the transducer.  
•
•
•
The instrument is always set up correctly with the transducer.  
Interchanging of transducers and instruments is a quick process.  
A User Calibration Data area that can be altered by customers to fit their require-  
ments.  
•
A Factory Calibration Sheet Data area, unalterable by the customer, can be cop-  
ied back into the User Calibration Data.  
1.4.3 Information  
Stored  
The following information is stored inside transducers equipped with Signature Cali-  
bration:  
•
•
•
Full-scale mV/V: The full-scale millivolt-per-volt (mV/V) rating of the transducer  
when its full load is applied; also called “calibration factor”.  
Shunt-Cal mV/V: The millivolt-per-volt output of the transducer when the shunt  
calibration resistor is placed across its (-)SIGNAL and (-)EXCITATION leads.  
Shunt Resistance: The resistance value, in Ohms, that was used to obtain the  
shunt-cal mV/V value above.  
•
•
Full-Scale Value: The full scale value of the transducer, in engineering units.  
Engineering Units: The engineering units that the transducer is calibrated in (i.e.  
pounds, grams, pascals, inches of water, etc.).  
•
•
Serial Number: The serial number of the transducer.  
Excitation Voltage: The magnitude and type of signal used to excite the trans-  
ducer.  
•
Linearization Points (optional): These can be used by an instrument using Shunt  
Calibration or Millivolt-per-Volt Calibration to correct any non-linearity in the trans-  
ducer and thus improve the accuracy of the system. An additional “multiple-point  
calibration” can be purchased with the transducer that allows linearity correction  
information to be placed into its Signature Calibration module.  
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Chapter 2  
Getting Started Quickly  
2.1 Locate Required Parts and Information  
The following items are required to set up an SC Series instrument with your  
transducer:  
•
•
•
SC Series instrument  
Transducers that are to be connected to the instrument  
For each transducer to be connected to the instrument, a connecting cable.  
This cable will have a 12-pin, green, plastic connector on one end and the  
transducer’s mating connector on the other end. Usually, this cable is ordered  
along with the instrument and transducer.  
If the connecting cable was not ordered with the instrument, you may need to  
make this cable.  
•
•
The transducer’s Calibration Record or Certificate of Calibration.  
The Customer Information Sheet that shipped with your instrument. This  
sheet describes which cards are installed in each channel.  
Power cord for the instrument.  
•
2.2 Connect the Transducer to the Correct Channel of the Instrument  
For each transducer, attach its connecting cable to the transducer, and then to the  
correct 12-pin channel-connector on the instrument.  
The Customer Information Sheet indicates which serial numbered transducer is to  
be connected to each channel of the instrument.  
If the instrument and transducer(s) were not purchased with a connecting cable,  
you may need to make this cable. For the transducer’s pin connections, see that  
transducer’s calibration record. For the pin connections for that channel of the  
instrument, see the appropriate chapter in this manual. For example, if you wish  
to wire to a Strain-Gage Input Channel see the chapter “Strain-Gage Input Chan-  
nel” on page 59.  
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2.3 Turn on the Instrument  
Connect the power cord between the instrument power source and the instrument,  
and turn the On/Off switch on the back of the instrument to the On position.  
The instrument enters its INITIALIZE mode that lasts a few seconds per channel. As  
each channel in the instrument is initialized, the transducer's serial number may be  
seen on the display if the transducer has a Signature Calibration Module in it.  
NOTICE  
If the channel’s display flashes “APPLY 00000.” (or some other load value), the  
instrument has detected a transducer other than the one which was last cali-  
brated with that channel. The instrument is prompting you to apply the  
requested load to the transducer so that a “mV/V Calibration” or a “Shunt Cali-  
bration” can take place.  
After making certain that the correct transducer is connected this channel,  
press the [ENTER] button after you have applied the requested load to perform  
the calibration.  
NOTICE  
If the instrument displays error code 57 or 68, it has detected a transducer  
other than the one which was last calibrated with that channel. Furthermore,  
the channel cannot perform an automatic calibration because its calibration  
type has been set to “Known Load Calibration”.  
Either re-connect the correct transducer to the channel, or see “CALIBRATION  
TYPEMenu Item” on page 67 to select another calibration type.  
When the instrument enters its normal operating mode (RUN mode), you will see the  
following format on the front panel display:  
1
•
00000. PSIG  
"
where:  
•
•
Channel number: “1” is the channel number.  
Value type: The next character indicates the nature of the following value.  
A blank character indicates the tracking value. The instrument is “tracking” the sig-  
nal, continuously updating the display in response to the signal from the trans-  
ducer.  
A “• " character indicates the peak value (highest value seen since the [CLEAR]  
button was last pressed).  
A “– " character indicates the valley value (lowest value seen since the [CLEAR]  
button was last pressed).  
•
•
Data value: “00000.” displays the value from the transducer in engineering units.  
Units label: “PSIG” indicates the engineering units being used (up to 4 charac-  
ters).  
•
Tare indicator: A “" “ symbol indicates tare is off; a “Ë“ symbol indicates tare is on.  
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2.4 Use the SETUP Menus to Enter Transducer Information  
You can skip this step if:  
•
•
You are using a transducer equipped with Signature Calibration, or  
The transducer and instrument were purchased together and set up by Sen-  
sotec.  
Otherwise, you must enter information about your transducer into the SETUP  
menu of the channel to which it is connected. See the appropriate chapter of this  
manual for that card type.  
2.5 Calibrate the Transducers to Their Channels  
You can skip this step if:  
•
•
You are using a transducer equipped with Signature Calibration, or  
The transducer and instrument were purchased together and set up by Sen-  
sotec.  
Otherwise, you must choose a calibration method (e.g. Shunt Calibration, mV/V  
Calibration, or Known Load Calibration) appropriate for your application and use  
the SETUP menu for that channel to calibrate the channel to the transducer. See  
the appropriate chapter of this manual for that card type.  
2.6 The SC Series Instrument is Ready for Use  
See “RUN Mode” on page 20 for information on how to operate the instrument  
while it is in the RUN mode.  
Apply some test stimulus on the transducer to observe changes in the display.  
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Chapter 3  
Operating Modes  
3.1 Operating Modes  
The SC Series instruments have four modes of operation:  
•
•
•
INITIALIZE, to test the instrument upon power up  
RUN, normal operation  
ERROR, which indicates that an abnormal situation has occurred that  
stopped the operation of the instrument  
SETUP, a menu which allows setup and calibration of the chassis and its  
channels  
•
Each of these will be described in this chapter.  
3.2 INITIALIZE Mode  
When the instrument is powered up or otherwise reset, it enters the INITIALIZE  
mode. As the instrument enters this mode, all segments of the display and all  
front panel indicator lights (if available) illuminate momentarily. Next, each channel  
in the instrument is checked for proper operation.  
If a problem is detected, the instrument may enter the ERROR mode.  
Depending on the type of channel, other actions may occur. For example, a  
Strain-Gage channel will calibrate its analog-to-digital converter and attempt to  
read the transducer’s Signature Calibration information. If the transducer is  
equipped with Signature Calibration, the transducer’s serial number is displayed  
momentarily.  
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3.3 RUN Mode  
After the INITIALIZE mode finishes, the instrument enters the RUN mode, its normal  
mode of operation.  
3.3.1 Display  
Model SC3004 and upper  
line of SC1000, SC2000,  
SC2001  
The display will show a channel number on the far left, followed by the channel’s oper-  
ation messages.  
For example, a Strain Gage amplifier channel will use the format below:  
1•  
00000. PSIG  
"
where:  
•
•
Channel number: “1” is the channel number.  
Value type: The next character indicates the nature of the following value.  
A blank character indicates the display is being continuously updated by “tracking”  
the input signal to the channel.  
A “• " character indicates the peak value (highest value seen since the [CLEAR]  
button was last pressed).  
A “– " character indicates the valley value (lowest value seen since the [CLEAR]  
button was last pressed).  
•
•
Data value: “00000.” displays the value from the transducer in engineering units.  
Units label: “PSIG” indicates the engineering units being used (up to 4 charac-  
ters).  
•
Tare indicator: A “" “ symbol indicates tare is off; a “Ë“ symbol indicates tare is on.  
Lower Line of SC1000,  
SC2000, SC2001  
The contents of the display’s lower line is selected with the “DISPLAY MENU -> LOWER MODE”  
menu item as either displaying a channel or indicating the status of Limits. See “Indi-  
cator Lights” on page 21.  
3.3.2 [VALUE] button  
NOTICE  
The [VALUE] button is not used by SC1000 instruments in the RUN mode.  
After the channel number, the next characters indicate which data value for the dis-  
played channel is shown. There are three (possibly four) data values available from  
each channel:  
•
•
•
•
(blank), tracking data value  
“• ", peak data value, (highest value since the peak/valley detector was cleared)  
“– ", valley data value, (lowest value since the peak/valley detector was cleared)  
“Û", percentage of the Analog-to-Digital converter’s full-scale digitizing capability.  
This data value is only available when the channel’s “DIAGNOSTICS->DISPLAY ADC”  
menu item is set to “ON”.  
Pressing and releasing the [VALUE] button cycles though the available sources for  
data values for the displayed channel.  
3.3.3 [CLEAR] Button  
Pressing and releasing the [CLEAR] button will reset the peak and valley values of the  
channel being monitored by the display to the track value. Additionally, any limits in  
the instrument that are “latched” will be reset.  
NOTICE  
The [CLEAR] button is not used by SC1000 instruments in RUN mode.  
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To clear the peak and valley values of all channels simultaneously, use the Sys-  
tem connector’s Function Input #2 pin. See “System Connector” on page 35 for  
details.  
To clear the peak and valley values of a single channel regardless of which chan-  
nel is being monitored by the display, use the channel’s AUX1 or AUX2 control  
pins on its connector. See the particular chapter regarding that channel for  
details.  
3.3.4 [CHANNEL] button  
If the configuration of the instrument contains more than one channel, the left  
most characters of the display indicates which channel the display is monitoring.  
Pressing and releasing the [CHANNEL] button will cause the next channel to be  
displayed.  
On instruments with a dual-line display, the [CHANNEL] button cannot be used to  
change which channel the lower line is monitoring. That is selected with the “DIS-  
PLAY MENU -> LOWER CHANNEL” menu item.  
Shunt Calibration Check  
If the [CHANNEL] button is held down for more than 3 seconds, the present chan-  
nel’s shunt calibration value (if the channel has shunt calibration available) will be  
displayed.  
3.3.5 [TARE] button  
To reset the channel’s display to zero, press the [TARE] button while in RUN  
mode. To restore the tare value, press the [TARE] button again. The “Tare” indica-  
tor will illuminate when tare is on.  
To tare all channels simultaneously, use the System connector’s Function 1 Input  
pin. See “System Connector” on page 35.  
To tare a single channel regardless of which channel is being monitored by the  
display, use the channel’s AUX1 or AUX2 control pins on its connector. See the  
particular chapter regarding that channel for details.  
3.3.6 Indicator Lights  
ModelsSC1000, SC2000, SC2001  
A “" “ symbol on the right side of a channel’s display indicates tare is off for that  
channel; a “Ë“ symbol indicates tare is on.  
If the lower line of the display is configured with the “DISPLAY MENU -> LOWER MODE”  
menu item as “LIMIT 01-04”, then the lower line will monitor the status of Limits 1, 2,  
3 and 4. A “" “ symbol indicates a limit is deactivated; a “Ë“ symbol indicates a limit  
is activated. For example:  
L1"  
L2"  
L3Ë  
L4Ë  
indicates that Limit 1 and Limit 2 are deactivated and Limit 3 and Limit 4 are acti-  
vated. Since the SC1000 is not equipped with limits, the lower line of the display  
will be blank. See “LOWER MODE Menu Item” on page 51.  
These indicators may be overridden by the operation of a Mathematics channel in  
special applications.  
Model SC3004  
Front panel lights “L-1”, “L-2”, “L-3”, and “L-4”, monitor the status of Limits 1, 2, 3,  
and 4. Model SC3004 instruments also include front panel lights labeled “L-5”, “L-  
6”, “L-7” and “L-8” which monitor the status of optional Limits 5, 6, 7, and 8.  
The function of the front panel lights may be overridden by the operation of a  
Mathematics channel in special applications.  
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3.4 ERROR mode  
The instrument enters the ERROR mode when a critical error occurs that prevents the  
instrument from operating. The display alternates between displaying a two-digit code  
in the form “ERROR xx ON CH.yy” and a short description of the error. The first two  
digits “xx” hold the error code. The last two digits, “yy” is channel number that caused  
the error. For example, “ERROR 60 ON CH.01” indicates that error number 60 occurred on  
channel 1.  
While the instrument is in the ERROR mode, no other operations are taking place  
except for limited serial communications capabilities. See “Error Message List” on  
page 152 for a list of error codes and their probable causes.  
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3.5 SETUP Menu mode  
The SETUP Menu mode is used to display or change the settings that control the  
operation of the instrument.  
3.5.1 Available Menus  
Each major function of the instrument has its own SETUP Menu. See “Setup Menu  
Reference” on page 157.  
3.5.2 Entering and  
Exiting the SETUP Menu  
mode  
To enter the SETUP Menu mode, press and hold the [UP] and [DOWN] buttons at the  
same time until you see “SETUP” on the display. When you release the buttons, you will  
see the first SETUP Menu item.  
3.5.3 Moving Through  
SETUPMenusandMenu  
Items  
The following table shows how to move though menus and menu items, and how to  
display or change the setting of a particular item.  
Table 3-1: Navigating the Menus  
Button  
Action  
[UP] or [DOWN]  
[ENTER]  
Scroll through available menus, sub-menus or menu items.  
Select a menu, sub-menu or menu item  
[EXIT]  
If changing a setting: abandons changes to a menu item  
otherwise: leaves the SETUP mode.  
To change the setting of a menu item:  
Press [ENTER] to display the current setting, which is preceded by the ‘*’ character.  
Press [UP] or [DOWN] until you see the setting you want. To abandon changes, press  
[EXIT]. To accept the new setting and move to the next item, press [ENTER].  
3.5.4 Exiting the SETUP  
Menu mode  
To leave SETUP mode and return to the RUN mode, press [EXIT] at any time.  
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Chapter 4  
Chassis Models  
4.1 Introduction  
The SC Series of Signal Conditioners/Indicators are available in several different  
chassis models. In general, each chassis model operates in an identical fashion  
and can be ordered with any type of Input channels, Output channels, or Virtual  
channels.  
Input channels and Output channels are printed circuit boards that occupy a phys-  
ical slot inside the instrument’s chassis. 12-pin connectors are located on the rear  
panel to connect to each Input or Output Channel. Each channel in the instrument  
is identified by a number (channel 01, channel 02, etc.).  
A Virtual channel exists in software only; it does not occupy a physical slot inside  
the instrument’s chassis. There is no rear-panel connector for a Virtual channel.  
However, a Virtual channel does require a channel number.  
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4.2 Specifications  
Model  
Model  
Model  
Model  
SC1000  
SC2000  
SC2001  
SC3004  
GENERAL  
# Physical channels  
# Virtual channels  
Case Material  
1 to 4  
8
1 to 4  
8
1 to 4  
8
1 to 14  
8
Aluminum  
Aluminum  
Aluminum  
Aluminum  
PHYSICAL  
Form factor  
Mounting  
3/8 DIN  
3/8 DIN  
suitcase  
portable  
2U rack  
rack  
bench, panel or rack  
DISPLAY  
# characters/line  
# lines/display  
# displays  
16  
2
16  
2
16  
2
20  
4
1
1
1
1, 2 or 3  
Display type  
Vacuum  
Vacuum  
Vacuum  
Vacuum  
Fluorescent  
Fluorescent  
Fluorescent  
Fluorescent  
ENVIRONMENTAL  
Storage temp.  
-30º C to 90º C  
5º C to 40º C  
-30º C to 90º C  
5º C to 40º C  
-30º C to 90º C  
5º C to 40º C  
-30º C to 90º C  
5º C to 40º C  
Operating temp.  
Relative Humidity  
80% max. for temperatures up to 31º C; decreasing linearly to 50% max. at  
40º C  
Other  
indoor use at altitudes up to 2000 m; Pollution Degree 2; Overvoltage Cate-  
gory II  
SPECIAL FEATURES  
Limits Quantity  
N/A  
N/A  
4 std., 16 max.  
4
4 std., 12 max.  
4
4 std., 16 max.  
4
Digital, isolated control inputs  
POWER  
Standard AC powered  
(automatic selection)  
100 to 230 VAC,  
47 to 63Hz  
100 to 230 VAC,  
47 to 63Hz  
100 to 230 VAC,  
47 to 630Hz  
100 to 230 VAC,  
47 to 63Hz  
Optional Vehicle Powered  
Total Excitation Drive  
11-28 VDC, 20W  
120 mA max.  
11-28VDC, 20W  
120 mA max.  
11-28 VDC, 20W  
120 mA max.  
N/A  
400 mA max.  
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4.3 Models SC1000 and SC2000  
4.3.1 Differences  
Model SC1000 instruments do not include peak/valley capture or limits features.  
All other SC instruments include peak/valley capture and 4 limit (“alarm”) outputs.  
4.3.2 External Arrangement  
The external arrangement of the AC powered SC1000 and SC2000 is given  
below.  
0123456789ABCDEF  
0123456789ABCDEF  
Figure 4-1: External Arrangement of AC powered SC1000 and SC2000  
4.3.3 Rear Panel  
The pinout for the 25-pin System connector is provided later in this chapter. The  
pinouts for the individual channels are located in the chapter for that channel.  
4.3.4 Panel Mounting  
The panel cutout size conforms to the 3/8 DIN standard. Panel-Mounting Jacks  
(order code AA928) are available that slide into two slots at the sides of the instru-  
ment. Use the following procedure to mount an SC1000 or SC2000 into a panel.  
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Figure 4-2: Panel Cutout Drawing for SC1000 & SC2000 (not to scale)  
Step 1: In the panel or rack, cut a hole as shown above. The panel may be up to 1/4”  
in thickness.  
Step 2: Use an 0.062" Allen wrench to remove two set screws that hold the Panel-  
Mounting Jacks to the case. To do this, insert the wrench into the side slots at  
the rear. Remove the screws completely.  
Step 3: Remove the Panel-Mounting Jacks by sliding them toward the rear. If the jacks  
don't slide easily, tap them gently.  
Step 4: Put the instrument through the hole in the panel.  
Step 5: Reinsert the Panel-Mounting Jacks into the slide slots. Slide them as far  
toward the panel as possible.  
Step 6: Reinsert the setscrews and tighten them. This will force the Panel-Mounting  
Jacks toward the rear side of the panel, drawing the instrument tightly into  
place.  
4.3.5 Rack Mounting  
A Rack Mounting Kit (order code AA934) is available for mounting a single SC1000 or  
SC2000 into a 19”, 2U rack. It includes the Panel-Mounting Jacks described above as  
well as the 19” rack panel.  
4.3.6 Bench Mounting  
4.3.7 Case Removal  
If bench mounting the instrument, you may want the optional carrying handle/bench  
stand (order code AA926).  
WARNING  
Disconnect the power cord and all cables from the instrument before attempt-  
ing to remove the case.  
Failure to comply with these instructions could result in death or serious  
injury.  
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CAUTION  
Use a #0 Phillips screwdriver on the black screws to avoid damaging them.  
Failure to comply with these instructions may result in product damage.  
Removal of rear panel  
The rear panel must be removed in order to install or remove channels.  
Step 1: Remove the four black Phillips-head machine screws that secure the back  
panel of the instrument to the case. These screws are located on the rear of  
the case, one at each of the four corners.  
Step 2: Remove the cable shield connection screw to allow the installation or  
remove of channels per “Input or Output Channel Installation Procedure” on  
page 42.  
Remove of case from entire circuit  
board assembly  
Step 1: Remove the two Phillips-head screws that secure the front panel.  
Step 2: Remove the front panel and disconnect its two connecting cables.  
Step 3: Remove the four black Phillips-head machine screws that secure the back  
panel of the instrument to the case. These screws are located on the rear of  
the case, one at each of the four corners. Do not remove the cable shield  
connection screw in the center.  
Step 4: The circuit boards will slide out of the rear of the case as a unit.  
4.3.8 Internal Arrangement  
The figure below shows the names and locations of the printed circuit boards.  
Front Panel/Display Board  
Assembly  
Microprocessor  
Board  
Power Supply  
Board  
SensoBus Backplane  
Up to 4 Input or Output  
Board  
Channel boards  
(1 shown)  
Rear Panel  
Figure 4-3: Internal Arrangement of SC1000 and SC2000  
Below is a description of each printed circuit board.  
•
The SensoBus Backplane Board serves as the connection between all  
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boards in the instrument.  
•
The Front Panel/Display Board Assembly contains the display and all front panel  
controls.  
•
•
The Power Supply Board contains the +15V, -15V and +5V power supplies.  
The Microprocessor Board contains the microprocessor, ROM software storage  
chip, and the System connector.  
•
The Hardware Input/Output Channel Boards plug into the remaining four slots  
of the SensoBus Backplane Board.  
4.3.9 Cleaning  
Turn off the instrument and unplug all connectors. Use a soft cloth or tissue and a  
mild cleaner. Do not use liquid or aerosol cleaners. Do not allow any cleaner inside  
the instrument.  
4.3.10 Vehicle Power  
Option  
Model SC1000 and SC2000 instruments are available with a vehicle power option for  
operation with batteries and linear DC power supplies. See “Specifications” on  
page 26 voltage and power requirements.  
NOTICE  
Due to the momentary startup inrush current of the instrument’s power supply,  
the use of switching power supplies with the SC are not recommended.  
4.3.11 Fuse  
Replacement  
The power-line fuses of AC-powered instruments are located within the instrument's  
power entry module on the rear panel. Use two 2A, 250V fast-blow fuses (p/n 029-  
3026-00).  
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4.4 Model SC2001  
4.4.1 Differences  
Model SC2001 instruments are SC2000 instruments housed in a portable case.  
4.4.2 External Arrangement  
The external arrangement of the AC powered SC2001 is given below  
.
0123456789ABCDEF  
0123456789ABCDEF  
Figure 4-4: External Arrangement of AC powered Model SC2001  
4.4.3 Front Panel  
The pinout for the 25-pin System connector is provided later in this chapter. The  
pinouts for the individual channels are located in the chapter for that channel.  
4.4.4 Case Removal  
WARNING  
Disconnect the power cord and all cables from the instrument before attempt-  
ing to remove the case.  
Failure to comply with these instructions could result in death or serious  
injury.  
Step 1: Remove the 10 Phillips-head machine screws that secure the front panel  
to the case.  
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Step 2: Pull the front panel assembly out of the case.  
Step 3: Proceed with Model SC2000 “Case Removal” on page 28.  
4.4.5 Internal Arrangement  
4.4.6 Cleaning  
See the Model SC2000 “Internal Arrangement” on page 29.  
Turn off the instrument and unplug all connectors. Use a soft cloth or tissue and a  
mild cleaner. Do not use liquid or aerosol cleaners. Do not allow any cleaner  
inside the instrument.  
4.4.7 Vehicle Power Option  
The Model SC2001 is available with a vehicle power option for operation with bat-  
teries and linear DC power supplies. See “Specifications” on page 26 voltage and  
power requirements..  
NOTICE  
Due to the momentary startup inrush current of the instrument’s power supply,  
the use of switching power supplies with the SC are not recommended.  
4.4.8 Fuse Replacement  
The power-line fuses of AC-powered instruments are located within the instru-  
ment's power entry module on the rear panel. Use two 2A, 250V fast-blow fuses  
(p/n 029-3026-00).  
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4.5 Model SC3004  
4.5.1 External Arrangement  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
0123456789ABCDEFGHIJ  
Figure 4-5: External Arrangement of Model SC3004  
4.5.2 Rear Panel  
The pinout for the 25-pin System connector is provided later in this chapter. The  
pinouts for the individual channels are located in the chapter for that channel.  
4.5.3 Panel Mounting  
4.5.4 Bench Mounting  
The panel space necessary conforms to the EIA 19” rack-mount standard. Panel  
mounting ears are attached to the instrument.  
Panel mounting ears are attached to the instrument, and may be removed if they  
are not needed.  
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4.5.5 Case Removal  
WARNING  
Disconnect the power cord and all cables from the instrument before attempt-  
ing to remove the case.  
Failure to comply with these instructions could result in death or serious  
injury.  
CAUTION  
Use a #0 Phillips screwdriver on the black screws to avoid damaging them.  
Failure to comply with these instructions may result in product damage.  
Step 1: Remove the four, silver rack-mounting ears from the left and right sides.  
Step 2: Remove one Phillips screw from the top of the case.  
Step 3: Remove two Phillips screws from the bottom of the black case cover.  
Step 4: Remove the black case cover from the instrument.  
Step 5: Remove eight Phillips screws from the rear panel, including the two cable  
shield connection screws. NOTE: Do not remove the four screws which  
secure the cooling fan to the rear panel.  
Step 6: Remove the rear panel.  
4.5.6 Rear Panel  
The pinout for the 25-pin System connector is provided later in this chapter.  
4.5.7 Internal Arrangement  
User installable printed circuit boards will slide out of the rear of the case once the  
case and rear panel have been removed as described above.  
4.5.8 Cleaning  
Turn off the instrument and unplug all connectors. Use a soft cloth or tissue and a  
mild cleaner. Do not use liquid or aerosol cleaners. Do not allow any cleaner  
inside the instrument.  
4.5.9 Fuse Replacement  
The power-line fuses are located within the instrument's power entry module on  
the rear panel. Use two 2A, 250V fast-blow fuses (p/n 029-3026-00).  
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Chapter 5  
System Connector  
5.1 Introduction  
The 25-pin D-subminiature System connector is used for the following:  
•
Communication by RS-232 or RS-485. RS-232 DCE standard designations  
have been maintained.  
•
•
Digital Function Inputs, such as for resetting tare, peak and latched limits  
Open-collector digital Limit Outputs for limits 1 through 4 (not available on  
Model SC1000).  
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5.2 System Connector Pinout  
Table 5-2: System Connector  
Pin  
Name  
Function  
Input/Output  
Reference Pin  
1
2
N/C  
RS-232 IN  
RS-232 OUT  
CTS  
No Connection  
RS-232 Data In  
N/A  
Input  
7
7
3
RS-232 Data Out  
Output  
N/A  
4
RS-232 Clear to Send (connected to pin 5)  
RS-232 Request to Send (connected to pin 4)  
RS-232 Data Set Ready  
N/A  
N/A  
7
5
RTS  
N/A  
6
DSR  
Output  
Reference  
N/A  
7
GND  
RS-232/RS-485 reference  
-
8
DCD  
RS-232 Data Carrier Detect (not connected)  
Function Input #2:.Clear Peak/Valley & Limits  
Function Input #1: Tare Off for all channels  
Function Input #0  
N/A  
19  
19  
19  
7
9
FUNC 2  
FUNC 1  
FUNC 0  
RS-485 TB  
RS-485 TA  
L1  
Input  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
Input  
Input  
RS-485 Transmit B  
Output  
Output  
Output  
Output  
Output  
Output  
N/A  
RS-485 Transmit A  
7
Limit 1 Output (Open Collector)  
Limit 2 Output (Open Collector)  
Limit 3 Output (Open Collector)  
Limit 4 Output (Open Collector)  
No Connection  
19  
19  
19  
19  
L2  
L3  
L4  
N/C  
DGND  
DTR  
DGND (Digital Ground)  
Reference  
N/A  
RS-232 Data Terminal Ready (not connected)  
Function Input #3: Tare On for all channels  
RS-232 Ring Indicator (pulled up to 5V)  
No Connection  
N/C  
19  
FUNC 3  
RI  
Input  
Output  
N/A  
N/C  
N/C  
7
RS-485 RB  
RS-485 RA  
RS-485 Receive B  
Input  
RS-485 Receive A  
input  
7
The Limit Output pins and Function Input pins are electrically isolated from the rest of  
the instrument.  
The RS-232 and RS-485 communications pins are electrically isolated from the rest of  
the instrument.  
The RS-232 and RS-485 interfaces are exclusive; an instrument cannot have both.  
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5.3 Function Input Pins  
5.3.1 Overview  
To use a Function Input pin (9, 10, 11 or 21), connect it to the DGND (pin 19) momen-  
tarily. This can be accomplished by a push button switch, relay contact closure, or  
PLC output.  
Usually, the Function Input pins perform the default actions described in the “System  
Connector Pinout” on page 36. However, a SensoCode program running on a Mathe-  
matics Virtual Channel may replace these default actions. Consult the Customer  
Information Sheet included with your instrument for details.  
5.3.2 Example  
For example, assume that you wish to use Function Input #3 to tare all channels in the  
instrument simultaneously. Connect a push-button switch as shown below.  
Figure 5-1: Function Input Example  
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5.4 Limit Output Pins  
5.4.1 Overview  
An open-collector output is a transistor logic output that can be used to control DC  
loads, drive opto-isolators or relays, or interface directly to logic circuitry. They act very  
much like switches: low resistance when turned on and high resistance when turned  
off. You can use them as you would a dry relay contact, with the following restrictions:  
•
•
•
•
The voltage applied must be DC  
The polarity of the DC voltage must be observed  
Maximum voltage: 50VDC  
Maximum power: 2.0W  
When Limits 1, 2, 3, or 4 are activated, the corresponding open-collector Limit Output  
pin on the System connector will be connected to the DGND (Digital Ground) pin.  
However, a SensoCode program running on a Mathematics Virtual Channel may over-  
ride this behavior. Consult the Customer Information Sheet included with your instru-  
ment for details.  
5.4.2 Example  
For example, assume that a remote indicator is to be lighted when Limit 1 is activated.  
An external 24 VDC power supply connects to the indicator.  
When Limit 1 is deactivated, there is high resistance between the Limit 1 Output pin  
and the DGND (Digital Ground) pin; little current flows in the circuit and the light is off.  
When Limit 1 is activated, there is low resistance between the Limit 1 Output pin and  
the DGND (Digital Ground) pin; the light turns on.  
The resistor limits the current flowing in the circuit when the light is lighted to 48 mA.  
According to Ohm’s Law:  
V
R
---  
I =  
24V  
-------------  
48mA =  
500Ω  
Lights or other indicators have voltage, current, and/or power ratings that must be  
observed in order to avoid damaging them.  
Figure 5-2: Open-Collector Output Example  
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Chapter 6  
System Menu  
6.1 Overview  
The System menu allows you to examine and change settings that affect the  
chassis of the SC instrument. You can view the internal software revision and the  
instrument’s configuration (i.e. what types of cards are installed in each channel).  
Detailed instructions on operating the SC instrument in the SETUP Menu mode  
can be found in “SETUP Menu mode” on page 23. A diagram of all menus is  
located in the “Setup Menu Reference” on page 157.  
6.2 Menu Items  
6.2.1 SOFTWARE REVISION  
Menu Item  
This displays the software part number and revision that is resident in the Micro-  
processor Board of the SC instrument.  
6.2.2 CONFIGURATIONSub-  
Menu  
When selected, a sub-menu is displayed which lists all available channels in an  
SC Series instrument. By pressing [ENTER] when a channel number is dis-  
played, the card type installed in that channel is shown. If a card is not installed in  
that channel, the message “NOT INSTALLED” is shown. Press [ENTER] again to  
return to the sub-menu listing of all channels.  
6.2.3 DIAGNOSTICSSub-  
Menu  
This sub-menu allows exercising and monitoring of the System connector’s output  
and input pins.  
OUTPUT n, PIN nnMenu Items  
INPUT TESTMenu Item  
These menus items are used to select an output pin to turn “on” (connected to pin  
19) or “off” (disconnected from pin 19). The output pins are updated immediately.  
When this item is selected, the status of all four digital inputs are continuously  
scanned and displayed. A “0” means that an input is not connected to pin 19 (not  
asserted), and a “1” means that it is connected (asserted). Press any button to  
exit this operation.  
SCAN TIMEMenu Item  
When selected, this menu item displays the time, in seconds, that it last took for  
the chassis to service all of the channels. In the RUN mode, the chassis reads  
each channel’s track, peak and valley value sequentially. After each channel has  
been serviced, the limits are processed.  
The value displayed is obtained from the last execution of the RUN mode prior to  
entering the SETUP menu mode. If you enter the SETUP mode immediately after  
power up, the display will read “NOT AVAILABLE”.  
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6.2.4 INSTALL CHANNEL  
Menu Item  
This menu item will add an Input, Output or Virtual channel as the next highest chan-  
nel number in the system.  
NOTICE  
Installing a channel will cause it to use the “default” or “empty” configuration  
information for that channel. All other channels are unaffected.  
Any calibration data, SensoCode mathematics programs, display setup,  
or other information for that channel will be erased to default values.  
Input or Output Channel  
Installation Procedure  
Before installing an Input or Output card, make certain that you know the “card type”  
(a two-digit hexadecimal number) of the card you wish to install.  
CAUTION  
Use Electrostatic Discharge (ESD) precautions when unpacking and handling  
circuit boards.  
Failure to comply with these instructions may result in product damage.  
Use the following procedure to install an Input or Output card:  
1) When the instrument is in the RUN mode, use the [ENTER] button to change  
which channel the display is monitoring. Note the highest channel number that is  
presently installed. The new circuit card for the new channel will be installed as  
the next channel number.  
2) Examine the circuit card to be installed and orient it as shown below. On it you  
will find the address jumper block.  
Figure 6-1: Address Jumper Block Location  
3) Change both address jumpers to match the next available channel in the  
instrument according to the chart below. Do not skip any channel numbers.  
Figure 6-2: Address Jumper Settings  
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Input Channels, Output Channels and Virtual Channels (such as Mathematics  
Channels and Split Display Channels) all require an unique address.  
4) Turn the instrument off and remove the power cord from the power source.  
5) Find the “Case Removal” in Chapter 4 “Chassis Models” on page 25 that  
matches the particular chassis model. Follow the directions and remove the  
rear panel.  
6) Locate an unused 42-pin SensoBus connector on the SensoBus mother  
board and make certain that all of its pins are not bent out of shape. It does  
not matter into which slot you install the card as the addressing is imple-  
mented with the address jumpers. However, it is most convenient to match  
the card’s address with the channel numbers silk-screened on the rear panel.  
7) Install the card into an unused 42-pin SensoBus connector on the Senso-  
Bus mother board. Make certain the card is fully seated.  
8) Replace the rear panel.  
9) Re-connect the power cord to the power source. Turn the instrument on.  
10) Enter the SETUP menu mode, then select “SYSTEM MENU-> INSTALL CHANNEL”.  
The instrument will then present a menu of card types available for installa-  
tion.  
11) Use the [UP] and [DOWN] buttons to select the card type of the card you  
wish to install. After you select the card type to be installed, you are asked  
“ARE YOU SURE?”. To cancel this operation, select “NO” or press the [EXIT] but-  
ton. If “YES” is selected, “WORKING...” is displayed and the installation will com-  
mence.  
12) If the installation was successful, “DONE” will be displayed. If the installation  
failed, you will see one of the following messages:  
“SYSTEM IS FULL”: There are no unused channels available in the instrument.  
“WON’T INSTALL”: The Output Relay card type you selected to install does not  
match the next available set of Limits. For example, the Limit 09-12 card type  
will not install unless the Limit 05-08 card type has been installed.  
“ERROR 28 ON CH.xx”: The instrument could not communicate with the card’s  
EEPROM memory. This is usually caused by the address jumpers being set  
incorrectly or if the card is not physically inside the chassis.  
Virtual Channel Installation  
Procedure  
Use the following procedure to install a Virtual Channel:  
1) Enter the SETUP menu mode, then select “SYSTEM MENU -> INSTALL CHANNEL”.  
The instrument will then present a menu of card types available for installa-  
tion.  
2) Select the card type of the card you wish to install. After you select the  
card type to be installed, you are asked “ARE YOU SURE?”. To cancel this opera-  
tion, select “NO” or press the [EXIT] button. If “YES” is selected, “WORKING...”  
is displayed an the installation will commence.  
3) If the installation was successful, “DONE” will be displayed. If the installation  
failed, you will see one of the following messages:  
“CAN’T INSTALL”: There is no more memory available for Virtual channels.  
“SYSTEM IS FULL”: There are no unused channels available in the instrument.  
After installing a Mathematics Virtual channel, you must re-load the SensoCode  
program into the channel with a computer running the “SensoCom Instrument Util-  
ity Software”. See “Mathematics Virtual Channel” on page 143 for more informa-  
tion.  
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6.2.5 DELETE CHANNEL  
Menu Item  
This menu item will delete the last channel in the instrument. Before deletion occurs,  
the number of the channel to be deleted is displayed and you are asked “ARE YOU SURE”.  
To cancel this operation, select “NO” or press the [EXIT] button. If “YES” is selected,  
the last channel in the system will be deleted.  
After a hardware channel has been deleted, you can safely physically remove it from  
the chassis. See “Case Removal” on page 28 for SC1000 and SC2000 instruments.  
See “Case Removal” on page 34 for SC3004 instruments.  
NOTICE  
Re-installing a deleted channel will erase all of its configuration information!  
6.2.6 DEFAULT CHANNEL  
Menu Item  
This menu item will reset all settings for the channel you select to their factory default  
values. Before the channel settings are reset, you are asked “ARE YOU SURE?”. To cancel  
this operation, press the [EXIT] button. If “YES” is selected, the channel’s settings will  
be reset.  
NOTICE  
Defaulting a channel is an operation that cannot be undone. All calibration  
information and other settings will be erased.  
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Chapter 7  
Serial Communications  
7.1 Overview  
The SC Series instruments are designed to communicate with a remote computer  
system or terminal for the purpose of transferring data values from the instrument  
to the remote system. The remote computer or terminal also can control many of  
the functions performed by the instrument.  
This chapter is a brief introduction to serial communications with SC Series instru-  
ments. A separate instruction manual is available to assist with the hookup and  
wiring for data communications as well as provide detailed information of all the  
available commands. Ask for manual 008-0610-00, “SC Series Communications  
Guide” or download it from http://www.honeywell.com/sensotec.  
7.2 Wiring  
The System connector on the instrument’s rear panel is used, among other things,  
for serial communications. See “System Connector” on page 35 for wiring infor-  
mation.  
All of the serial communications pins on the 25-pin System connector have 500V  
of electrical isolation from all other pins and connectors on the instrument. Addi-  
tionally, all serial communications pins are protected against electrostatic dis-  
charge (ESD).  
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7.3 Communications Protocol  
7.3.1 RS-232 vs. RS-485  
SC Series instruments are available with either of two communications protocols, RS-  
232 or RS-485. Only one of these can be installed at a time at the factory.  
•
RS-232 provides for only one receiver and transmitter per loop, and a loop length  
of no more than 50 feet.  
•
RS-485 allows up to 32 devices per loop, and a loop length of no more than 4000  
feet. All devices receive messages in parallel on the line, the so-called “multi-  
drop” system. To avoid garbled transmissions, only one device should respond to  
a particular message. Therefore, every device on the loop must have a unique  
address.  
If you have an instrument with more than one channel, transmission must be  
addressed to the appropriate channel within the instrument.  
7.3.2 Parameters  
All SC instruments use no parity, 8 data bits, and 1 stop bits (“N,8,1”) for serial com-  
munications. Baud rates available are 300, 600, 1200, 2400, 4800, 9600, 19200  
and 38400. As shipped from the factory, all instruments are set at 9600 baud. The  
baud rate can be selected though the front panel.  
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7.4 Serial Com Menu  
7.4.1 Overview  
The Serial Com menu allows you to examine and change the settings for serial com-  
munications as well as test the communications link.  
Detailed instructions on operating the SC instrument in the SETUP Menu mode can  
be found in “SETUP Menu mode” on page 23. A diagram of all menus is located in  
“Setup Menu Reference” on page 157.  
7.4.2 INTERFACEMenu  
Item  
This menu item indicates which serial communications interface is installed in the  
instrument: “RS-232” or “RS-485”.  
7.4.3 ADDRESSMenu  
Item  
This allows you to examine and change the two-character address that the instrument  
will respond to. The default address of “00” (ASCII codes decimal 30, decimal 30).  
7.4.4 BAUD RATEMenu  
Item  
This allows you to examine and change the baud rate that the instrument uses for  
serial communications. The default baud rate is 9600.  
7.4.5 AUTO LINE-FEED  
Menu Item  
This allows you to examine the setting (on/off) of the auto line-feed function. When  
set to “on”, a line-feed character (ASCII code decimal 10) is transmitted just before the  
carriage return (ASCII code decimal 13) that signifies the end of the instrument’s  
response.  
If the instrument is connected to a dumb terminal or printer, inserting a line feed before  
the carriage return will make each message sent by the instrument appear on a sepa-  
rate line and thus be easier to read.  
The default setting is “on”.  
7.4.6 TRANSMIT TEST  
Menu Item  
When this menu item is selected, the instrument immediately transmits the message  
“ADDRESS nn TEST” where “nn” is the two-character address of the instrument. Then the  
message “MESSAGE SENT” is shown on the display. This helps detect wiring or other prob-  
lems with serial communications from the instrument to the computer or PLC.  
7.4.7 LEAVE MENUMenu  
Item  
When the menu item is displayed, press [ENTER] to leave this menu. Press [EXIT] to  
return to the RUN mode.  
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Chapter 8  
Display Menu  
8.1 Overview  
The Display menu allows you to examine and change settings that affect the oper-  
ation of the display of the SC instrument. You can change which channel is dis-  
played when the instrument is powered-up and what information is shown on the  
lower line of SC1000, SC2000 and SC2001 instruments.  
Detailed instructions on operating the SC instrument in the SETUP Menu mode  
can be found in “SETUP Menu mode” on page 23. A diagram of all menus is  
located in the “Setup Menu Reference” on page 157.  
8.2 Menu Items for Models SC1000, SC2000, SC2001  
These instruments have a dual-line display which consists of an upper line and a  
lower line.  
8.2.1 UPPER CHANNELMenu  
Item  
Specifies the channel that is displayed on the upper line when the instrument is  
powered-up.  
To change whether the channel’s track, peak or valley data value is displayed on  
power-up, use the channel’s “OPERATION -> POWER-ON SOURCE” menu item.  
8.2.2 LOWER CHANNEL Menu  
Item  
Specifies the channel that is displayed on the lower line when the “LOWER MODE”  
menu item is set to “CHANNEL”.  
To change whether the channel’s track, peak or valley data value is displayed on  
power-up, use the channel’s “OPERATION -> POWER-ON SOURCE” menu item.  
8.2.3 LOWER MODE Menu  
Determines what is displayed on the lower line. The choices are:  
Item  
•
•
“BLANK” means that nothing is displayed.  
“LIMIT 01-04” means that the status of Limit 1, Limit 2, Limit 3, and Limit 4 are  
displayed as described in “Indicator Lights” on page 21  
“CHANNEL” means that the channel specified with the “LOWER CHANNEL” menu item  
is displayed.  
•
8.2.4 DISPLAY DISABLE  
Menu Item  
Determines if the display is enabled or not. In some applications, the display is  
not used in order to reduce power consumption; the instrument is then completely  
controlled with the Serial Communications interface. The choices are:  
•
•
“OFF” means that the display operates normally.  
“ON” means that the display is blanked after the instrument is powered up.  
Pressing any button on the front panel will temporarily re-enable the display  
until the instrument is reset.  
8.3 Menu Items for Model SC3004  
8.3.1 POWER-ON CHANNEL  
Specifies the channel that is selected when the instrument is powered up.  
Menu Item  
To change whether the channel’s track, peak or valley data value is displayed on  
power-up, use the channel’s “OPERATION -> POWER-ON SOURCE” menu item.  
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Chapter 9  
Limits  
9.1 Understanding Limits, Set Points and Return Points  
Limits are signal levels at which some action (such as a light to come on or go out,  
or a switch to close) is desired to take place. The point at which this action takes  
place is the SET POINT. The RETURN POINT is the point at which the action that  
took place at the SET POINT returns to its original state.  
If the SET POINT and RETURN POINT are identical and the signal level is  
changing slowly near these points, “chatter” may result and the limit rapidly ener-  
gizes and de-energizes. To keep this from happening, we can specify the SET  
POINT at which the action would occur as well as the RETURN POINT where we  
want the action to cease. If the amount of “dead band” between these two values  
is more than the expected noise, the desired action will take place only once. The  
SET POINT and the RETURN POINT should always be separated to insure that  
small amounts of noise on the signal will not become a problem.  
A good general rule for SET POINT and RETURN POINT values is that they  
should be separated by at least one percent of the full-scale value.  
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9.2 Limit Operation  
9.2.1 Actions When  
Activated  
When Limits 1, 2, 3, or 4 are activated, the following actions occur:  
•
•
The front panel light for the limit will illuminate.  
The corresponding open-collector Limit Output pin on the System connector will  
be connected to the DGND (Digital Ground) pin.  
•
If a Relay Output channel is installed, the relay for the limit will activate.  
A Relay Output channel can be installed for Limits 5, 6, 7, and 8. When these limits  
are activated, the following actions occur:  
•
If the display is monitoring the channel of this Relay Output channel, the display  
will indicate the status of these limits.  
•
•
On a Model SC3004, the front panel light for the limit will illuminate.  
The relay for the limit on this Relay Output channel will activate.  
A Relay Output channel can be installed for Limits 9, 10, 11 and 12. When these limits  
are activated, the following actions occur:  
•
If the Relay Output channel is displayed, the display will indicate the status of  
these limits.  
•
The relay for the limit on this Relay Output channel will activate.  
A Relay Output channel can be installed for Limits 13, 14, 15 and 16. When these lim-  
its are activated, the following actions occur:  
•
If the Relay Output channel is displayed, the display will indicate the status of  
these limits.  
•
The relay for the limit on this Relay Output channel will activate.  
9.2.2 Scan Time  
The “scan time” or update rate of the limits depends on how many channels are  
installed in the instrument. To determine the scan time of the limits for your particular  
instrument, see “SCAN TIMEMenu Item” on page 41.  
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9.3 Limit Menus  
9.3.1 Overview  
There are four, eight, twelve or sixteen Limit menus depending on how many  
Relay Output channels are installed in the instrument. These menus determine  
the operation of the each of the limits.  
If no Relay Output channels are installed, there are four Limit menus which control  
the operation of the open-collector Limit Outputs on the System connector.  
Detailed instructions on operating the instrument in the SETUP Menu mode can  
be found in “SETUP Menu mode” on page 23. A diagram of all menus is located  
in “Setup Menu Reference” on page 157.  
9.3.2 LIMIT.ENABLEMenu  
Item  
This enables or disables the operation of this limit. The two options for this menu  
item are “ON” and “OFF”.  
9.3.3 LIMIT.SETPOINT  
Menu Item  
This is the numeric value in engineering units for the signal level that activates the  
limit.  
9.3.4 LIMIT.RETURN PNT  
Menu Item  
This is the numeric value at which the limit deactivates. In general, this number  
should differ from the set point values by at least 1% of full scale.  
Carefully consider what value should be entered for the RETURN POINT. If the  
signal is expected to approach the SET POINT from a lower value, the RETURN  
POINT value should be less (algebraically) than the SET POINT. If the signal is  
expected to approach the SET POINT from a higher level, the RETURN POINT  
should be higher (algebraically) than the SET POINT.  
9.3.5 LIMIT.ENERGIZE  
Menu Item  
This specifies when to activate the limit relative to the set point and return point.  
The options for this menu item are:  
•
•
•
•
“SIGNAL > SETPOINT” means the limit will activate when the signal is higher than  
the set point.  
“SIGNAL < SETPOINT” means the limit will activate when the signal is lower than  
the set point.  
“SIGNAL INSIDE” means the limit will activate when the signal is in between the  
set point and the return point.  
“SIGNAL OUTSIDE” means the limit will activate when the signal is not in between  
the set point and the return point.  
The figures below further illustrate the differences between these settings.  
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Figure 9-1: Limit Operation when LIMIT.ENERGIZE= SIGNAL > SETPOINT  
Figure 9-2: Limit Operation when LIMIT.ENERGIZE= SIGNAL < SETPOINT  
Figure 9-3: Limit Operation when LIMIT.ENERGIZE= SIGNAL INSIDE  
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Figure 9-4: Limit Operation when LIMIT.ENERGIZE= SIGNAL OUTSIDE  
9.3.6 LIMIT.LATCHING  
Menu Item  
This specifies whether to latch the activated limit so that only manually clearing the  
limit will deactivate it. A latched limit can be manually cleared by pressing the  
[CLEAR] button, sending the “F8” serial communications command, or by using the  
Function Input #2 (Clear Peak/Valley & Limits pin on the System Connector. See  
“Function Input Pins” on page 37.  
The options for this menu item are:  
•
“ON” means that once a signal activates the limit, the limit will remain activated until  
it is reset.  
•
“OFF” means that the limit will deactivate immediately when the signal crosses the  
return point.  
9.3.7 LIMIT.CHANNEL  
This specifies the channel that is monitored by this limit.  
Menu Item  
9.3.8 LIMIT.SOURCE  
Menu Item  
This designates the data source of the channel monitored by this limit. Each channel  
has three data sources: the live tracking value (TRACK), its highest value (PEAK),  
and its lowest value (VALLEY).  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak/valley detector was  
last cleared.  
•
“VALLEY” means the lowest value of the channel since the peak/valley detector was  
last cleared.  
9.3.9 LEAVE MENUMenu  
Item  
When the menu item is displayed, press [ENTER] to leave this menu. Press [EXIT] to  
return to the RUN mode.  
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Chapter 10  
Strain-Gage Input Channel  
10.1 Features  
The Strain-Gage Input channel provides a DC excitation voltage to and accepts  
millivolt signals from strain-gage transducers. These millivolt signals are digitized,  
converted into engineering units, and placed into the track, peak and valley data  
values of the channel. Setup and calibration of the channel can be made manu-  
ally through the SETUP mode or automatically if the transducers are equipped  
with Signature Calibration. See “What is Signature Calibration?” on page 14.  
The analog-to-digital converter input circuit is ratiometric to the excitation voltage,  
features adjustable digital, low-pass filtering, 12- to 18-bit resolution (depending  
on the filter setting) and has several different mV/V input ranges. These many  
input ranges allow ±50,000 count resolution (at the slowest filter setting) across a  
wide variety of mV/V input ranges.  
Three methods of calibrating the Strain-Gage Input channel to the transducer are  
available: known-load calibration, shunt calibration and mV/V calibration. The  
benefits of each are discussed in “CALIBRATION TYPEMenu Item” on page 67.  
Two rear panel control inputs can be field-configured for such functions as remote  
tare, disabling peak/valley detection and clearing the peak/valley values. A volt-  
age or current digital-to-analog output is also provided.  
Many diagnostic functions are performed automatically to insure correct wiring  
and operation of the transducer.  
FP2000 Transducers  
The Strain-Gage Input channel has its own internal shunt resistor for use in Shunt  
Calibration. It is not compatible with FP2000 mV/V output transducers that are  
equipped with “Buffered Shunt Calibration”. If you wish to use Shunt Calibration  
with an FP2000 transducer, use an FP2000 with Buffered Shunt cal and amplified  
output (e.g. 5 VDC, 10 VDC or 4-20mA) connected to an SC's High-Level Input  
channel.  
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10.2 Wiring  
Connect the transducer to a Strain-Gage Input channel by wiring it to the 12-pin con-  
nector of that channel. The Customer Information Sheet that shipped with the instru-  
ment describes which cards are installed in each channel. The pin-out for this  
connector is shown on the following table.  
Table 4-3: Strain-Gage Input Channel Pin Connections  
Pin  
Label  
Function  
Reference Pin  
1 (top)  
+EXC  
+SEN  
-SEN  
-EXC  
+SIG  
-SIG  
(+)Excitation  
(+)Sense  
10  
10  
10  
10  
10  
10  
8
2
3
(-)Sense  
4
(-)Excitation  
5
(+)Signal  
6
(-)Signal  
7
+OUT  
-OUT  
+MEM  
-MEM  
AUX1  
Analog Output  
Analog Return  
(+)Signature  
8
-
9
10  
-
10  
11  
(-)Signature / Digital Ground  
Auxiliary Function 1  
(connect to pin 10 to activate)  
10  
12  
(bottom)  
AUX2  
Auxiliary Function 2  
(connect to pin 10 to activate)  
10  
The Analog Output and Analog Return pins are electrically isolated from all other pins  
on the instrument.  
The maximum recommended cable length to a Signature Module is 100 feet [30m].  
NOTICE  
If you are not using remote sensing of excitation, jumper (+)Sense to (+)Excita-  
tion and (-)Sense to (-)Excitation. If nothing is connected to (+)Sense and (-  
)Sense, the instrument will enter the ERROR mode with error code 46.  
Figure 10-1: Unamplified Transducer Connection to Strain-Gage Input Channel  
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10.3 Calibration Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu items is given in  
“Setup Menu Reference” on page 157.  
Step 1: Wire the transducer to the channel’s connector.  
See “Wiring” on page 60 for details.  
Step 2: Enter the CALIBRATION TYPE.  
There are three methods that can be used to calibrate the transducer to the  
Input Channel. Each has advantages and disadvantages as described in  
“CALIBRATION TYPE Menu Item” on page 67. It is important to know your  
application in order to select the appropriate calibration type.  
Step 3: Enter the CALIBRATION DATA.  
If your transducer has Signature Calibration, you don’t need to enter these  
values as they are entered automatically.  
If your transducer was ordered and shipped along with the instrument, you  
don’t need to enter these values as they have been entered at the factory.  
Otherwise, consult the Certificate of Calibration for the transducer when  
entering information in the CALIBRATION DATA sub-menu.  
Step 4: Perform the calibration.  
Otherwise, use the CALIBRATE menu item to start the calibration process. You  
will be prompted to apply loads to the transducer as required.  
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10.4 Specifications  
TRANSDUCER INPUT  
Transducer type  
full-bridge, strain gage  
Excitation Voltage  
5 or 10 VDC,  
short circuit protected with sensing  
Transducer full-scale output  
.5 to 11.0 mV/V @ 5V excitation  
.5 to 5.5 mV/V @ 10 V excitation  
Amplifier Gain Selection  
Calibration Type  
automatic  
shunt, mV/V or  
2-, 3- or 5- point known load  
Differential Input Voltage  
A/D Converter  
+/- 55mV (max.)  
24-bit Sigma-Delta  
digital, 24-tap FIR  
Low-pass filter  
Resolution and Frequency Response  
see “FREQ. RESPONSEMenu Item” on  
page 63  
INSTRUMENT-ONLY ACCURACY  
(Sense wires used;Frequency Response setting<=16Hz;  
Linearity, repeatability & hysteresis)  
mV/V Calibration  
±0.1% F.S.  
Known -Load Calibration  
±0.01% F.S.  
AUXILLIARY INPUTS  
Quantity  
2
Type  
momentary contact closure  
< 5ms  
Response Time  
Field-Selectable Functions  
tare on, tare off,  
peak/valley clear, peak/valley hold,  
track hold  
ANALOG OUTPUT  
Output voltage range  
5, ±5, 10 or ±10 VDC (field selectable)  
4-20 mA  
Output current range (optional current  
output channels)  
Source  
Isolation  
any channel’s track, peak or valley value  
500V  
Resolution  
13 bits  
Frequency Response  
same as input when driven by the same  
channel’s tracking data  
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10.5 Channel Menu  
Each Strain-Gage Input channel is configured and calibrated via its channel  
menu. Detailed instructions on operating the instrument in the SETUP Menu  
mode can be found in “SETUP Menu mode” on page 23. A diagram of all menus  
is located in “Setup Menu Reference” on page 157.  
10.5.1 OPERATION  
Sub-Menu  
This menu controls the operation of this channel when the instrument is in the  
RUN mode.  
AUTO-ZEROMenu Item  
This enables or disables the channel’s automatic zeroing function. The auto-zero  
function can be beneficial by removing the effect of slight temperature shifts in the  
transducer’s output. The two options for this menu item are “ON” and “OFF”.  
When enabled, the channel will reset its tracking value to zero when the tracking  
value has never been more positive than +10 or more negative than -10 display  
counts for any 10 second period.  
For example, assume that the DISPLAY.DECPT menu item is set to 000.00 (two deci-  
mal points). If the tracking value never leaves the range of -000.10 to +000.10 for  
any 10 second period, then tracking value will reset to 000.00 automatically.  
NOTICE  
To compensate for the transducer’s initial warm-up shift, the auto-zero function  
operates every 2 seconds during the first 60 seconds of RUN mode operation.  
FREQ. RESPONSEMenu Item  
This sets the frequency response, step response, and resolution of the channel  
according to the table below. The tracking value, peak/valley detector values and  
analog output on this channel are all affected. The default value of 016. HERTZ is  
suitable for most applications.  
Resolution (counts) (not  
including min. 10% overrange/  
underrange capability)  
Frequency  
Response  
Step Response  
(ms) (typical)  
002. HERTZ/FAST  
002. HERTZ  
008. HERTZ  
016. HERTZ  
032. HERTZ  
050. HERTZ  
100. HERTZ  
250. HERTZ  
500. HERTZ  
800. HERTZ  
40  
440  
110  
55  
28  
16  
8
±50000  
±50000  
±25000  
±20000  
±10000  
±5000  
±5000  
3
±2000  
2
±2000  
2
±2000  
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POWER-ON SOURCE Menu Item  
This menu selects which value is displayed by the channel when first entering the  
RUN mode.  
The choices are:  
•
•
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel.  
“VALLEY” means the lowest value of the channel.  
“TRACK / PEAK” means the live tracking value and the highest value of the channel.  
(Only available on Model SC3004).  
•
•
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.  
(Only available on Model SC3004).  
“PEAK / VALLEY” means the highest and lowest values of the channel.  
(Only available on Model SC3004).  
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10.5.2 DISPLAY SETUP  
Sub-Menu  
This menu controls how data values are displayed by the channel and transmitted  
via serial communications.  
DISPLAY. DIGITSMenu Item  
Selects the number of digits displayed by the channel. The choices are:  
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-  
its (±99999).  
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and  
negative numbers with five full digits (-99999).  
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)  
and negative numbers with six digits (-999999).  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
DISPLAY. DECPTMenu Item  
Selects the decimal point location on the channel’s display and serial communica-  
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the  
right and left.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
DISPLAY. COUNT-BYMenu Item  
Determines by what value the display increments or decrements. This will make  
the display less sensitive to a noisy signal. The choices are:  
•
•
•
•
•
•
•
•
“00001”  
“00002”  
“00005”  
“00010”  
“00020”  
“00050”  
“00100”  
“00200”  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
DISPLAY. UNITSMenu Item  
Specifies the four character label that is displayed to the right of the channel’s val-  
ues.  
NOTICE  
This menu item doesn’t change the mathematical scaling of the channel’s val-  
ues; that can be changed by altering the “CALIBRATION DATA -> FULL SCALE VALUE”  
menu item and then performing a re-calibration.  
When a character position is flashing press the [UP] or [DOWN] button to change  
the character. Press [ENTER] to advance to the next character.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
DISPLAY. AVERAGEMenu Item  
Controls the speed with which the channel’s display values will update. Display  
averaging does not affect the channel’s analog output or its peak/valley detection,  
which will proceed at the speed selected by the ”OPERATION -> FREQ. RESPONSE” menu  
item. The choices are:  
•
“ON” means that the display will update four times each second. The channel’s  
values will be averaged for 1/4 second, then displayed.  
•
“OFF” means that the channel’s display will update as quickly as possible.  
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10.5.3 AUXn FUNCTION  
Menu Items  
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine what happens when the  
Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connector  
are activated. These pins are “activated” when they are connected to the (-)Signature  
(labeled as “-MEM”) pin. The choices are:  
•
•
•
•
•
•
“DISABLED” means that activating the pin does nothing.  
“TRACK HOLD” means that the tracking, peak and valley values will not be updated.  
“HIGH/LOW HOLD” means that the peak and valley values will not be updated.  
“HIGH/LOW CLEAR” means that the peak and valley values are reset.  
“TARE ON” activates the channel’s Tare function (resets it to zero).  
“TARE OFF” deactivates the channel’s Tare function.  
As the Auxiliary Function pins are not isolated, it is recommended that a push-button  
switch or relay is used to connect these pins to the (-)Signature pin.  
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10.5.4 CALIBRATION TYPE  
Menu Item  
This chooses the type of calibration technique to be used. There are three meth-  
ods that can be used to calibrate the transducer to the Input Channel. Each has  
advantages and disadvantages as described in the table below.  
Table 4-4: Comparison of Calibration Types  
2-, 3-, or 5-  
Shunt  
mV/V  
point  
Calibration  
Calibration  
KnownLoad  
Calibration  
RECOMMENDED...  
...for most applications  
no  
yes  
yes  
no  
no  
...when frequently swapping  
transducers  
yes  
...when best possible accuracy  
required  
no  
no  
yes  
PROS and CONS  
Relative accuracy  
good  
no  
better  
no  
best  
yes  
Requires actual, calibrated loads  
to be applied  
Automatically calibrates with Sig-  
nature Calibration transducers  
yes  
yes  
no  
Max. distance of transducer from  
instrument w/out sense wires  
15’ [5m]  
15’ [5m]  
50’ [15m]  
100’ [30m]  
300’ [100m]  
300’ [100m]  
Max. distance of transducer from  
instrument with sense wires  
CALIBRATION TECHNIQUE  
Zero-scale point from...  
Full-scale point from...  
applied load  
applied load  
applied load  
applied load  
transducer  
output when  
shuntresistor  
applied  
internal refer-  
ence  
Linearity correction from...  
data stored in datastored in 2-point: none  
Signature  
Module (if  
available)  
Signature  
Module (if  
available)  
3- or 5-point:  
applied load  
It is important to know your application in order to select the appropriate cali-  
bration type. mV/V (“millivolt-per-volt”) Calibration is recommended for most  
applications because it doesn’t require known loads and it allows easy swapping  
of transducers equipped with Signature Calibration. When the best possible  
accuracy is required, Known-Load Calibration is recommended.  
The choices for this menu item are:  
•
“TYPE= SHUNT CAL” means Shunt Calibration. First, you are prompted to apply  
the load entered in the “ZERO SCALE VALUE” register. Next, the instrument inserts  
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a known, precision resistor into the transducer circuit, which causes a predictable  
apparent signal. The instrument then takes a reading and adjusts itself using the  
“SHUNT CAL VALUE” register.  
•
“TYPE= MV/V CAL” means Millivolt-per-Volt Calibration. First, you are prompted to  
apply the load entered in the “ZERO SCALE VALUE” register. Next, the instrument takes  
a reading from an accurate, internal mV/V reference. The instrument then uses  
the “FULL SCALE MV/V” and “FULL SCALE VALUE” values in mathematical calculations to  
scale its tracking values.  
•
•
“TYPE= 2 POINT CAL” means 2-Point Known Load Calibration. You are prompted to  
apply the loads to the transducer that were entered in the “KNOWN POINT 1/2” and  
“KNOWN POINT 2/2” registers. This technique assumes that the transducer is linear,  
so the usual loads used are zero scale and full scale.  
“TYPE= 3 POINT CAL” means 3-Point Known Load Calibration. You are prompted to  
apply the loads to the transducer that were entered in the “KNOWN POINT 1/3” and  
“KNOWN POINT 2/3” and “KNOWN POINT 3/3” registers. This technique can be used to  
compensate for the non-linearity in the transducer. The usual loads used are zero  
scale, half scale and full scale, but you are not restricted to these loads.  
“TYPE= 5 POINT CAL” means 5-Point Known Load Calibration. You are prompted to  
apply the loads to the transducer that were entered in the “KNOWN POINT 1/5”, “KNOWN  
POINT 2/5”, “KNOWN POINT 3/5”, “KNOWN POINT 4/5” and “KNOWN POINT 5/5” registers. This  
technique can be used to compensate for the non-linearity in the transducer. The  
usual loads used are zero scale, one-quarter scale, half scale, three-quarters  
scale and full scale, but you are not restricted to these loads.  
•
The selection of the calibration type affects what menu items appear in the CALIBRATION  
DATA sub-menu.  
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10.5.5 CALIBRATION DATA  
Sub-Menu  
This enters the values that will be used by the instrument when it calibrates itself  
to the transducer. The menu items that are displayed will change according to  
what the CALIBRATION TYPE is set for.  
EXCITATIONMenu Item  
This sets the excitation voltage used to power up the transducer. The choice are:  
•
•
“EXCITATION=5VDC” means 5 volts DC excitation.  
“EXCITATION=10VDC” means 10 volts DC excitation.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
FULL SCALE MV/VMenu Item  
The transducer output when its full-scale load is applied to it, in milliVolts-per-Volt.  
This menu item is used by the instrument to set the gain of its amplifier circuit, and  
(when the CALIBRATION TYPE is set to mV/V Calibration) to calibrate the instrument.  
This value is normally found on the transducer’s Certificate of Calibration issued  
by its manufacturer.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule. It is available for all calibration types.  
FULL SCALE VALUEMenu Item  
ZERO SCALE VALUEMenu Item  
SHUNT CAL VALUEMenu Item  
The transducer’s full-scale output in engineering units.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule. It is available only with the Shunt Calibration and mV/V Calibration types.  
The transducer’s zero-scale output in engineering units, which is usually zero.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule. It is available only with the Shunt Calibration and mV/V Calibration types.  
The shunt calibration value must be calculated by using information found on the  
transducer’s Certificate of Calibration and the following formula:  
Shunt-Calibration Output  
-------------------------------------------------------------  
SHUNT CAL VALUE =  
× Full-Scale Capacity  
Full-Scale Output  
The terms have the following meanings:  
•
•
•
Shunt-Calibration Output: The transducer’s output under shunt calibration  
conditions in mV/V. Sometimes called “Shunt Cal. Factor”.  
Full-Scale Output: The transducer’s full-scale output in mV/V. Sometimes  
called “Calibration Factor”.  
Full-Scale Capacity: The transducer’s desired full-scale reading in engineer-  
ing units (PSI, lbs, Kg, etc.). You may wish to convert the engineering units of  
this value. For example, if the transducer full scale is 3000PSIG and you wish  
the channel to read in bar, you must convert 3000PSIG into 206.84 bar.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
The shunt resistor’s ohmic value used to generate the Shunt-Calibration Output is  
given on the transducer’s Certificate of Calibration. Normally, the instrument has  
a shunt calibration resistor of 59000 (59K) ohms installed. If your transducer and  
instrument were purchased at the same time from Sensotec, the correct shunt  
resistor has been installed.  
This menu item is only available with the Shunt Calibration type.  
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Figure 10-2: Shunt Calibration Resistor Location  
To verify proper transducer operation, you can apply the shunt resistor to the trans-  
ducer while the instrument is in the RUN mode. Press and hold the [ENTER] button  
for three seconds; this will apply the shunt resistor and display the reading.  
KNOWN POINT x/yMenu Items  
This enters the engineering units for the known-load calibration points. These points  
must match the actual loads that you will apply to the instrument during calibration.  
The number of calibrations points depends on the CALIBRATION TYPE.  
When using the 2-Point Known Load Calibration type, the following menu items are  
available:  
•
•
“KNOWN POINT 1/2”: point 1 of 2, usually 0% of the transducer’s full-scale capacity.  
“KNOWN POINT 2/2”: point 2 of 2, usually 100% of the transducer’s full-scale capacity.  
When using the 3-Point Known Load Calibration type, the following menu items are  
available:  
•
•
•
“KNOWN POINT 1/3”: point 1 of 3, usually 0% of the transducer’s full-scale capacity.  
“KNOWN POINT 2/3”: point 2 of 3, usually 50% of the transducer’s full-scale capacity.  
“KNOWN POINT 3/3”: point 3 of 3, usually 100% of the transducer’s full-scale capacity.  
When using the 5-Point Known Load Calibration type, the following menu items are  
available:  
•
•
•
•
•
“KNOWN POINT 1/5”: point 1 of 5, usually 0% of the transducer’s full-scale capacity.  
“KNOWN POINT 2/5”: point 2 of 5, usually 25% of the transducer’s full-scale capacity.  
“KNOWN POINT 3/5”: point 3 of 5, usually 50% of the transducer’s full-scale capacity.  
“KNOWN POINT 4/5”: point 4 of 5, usually 75% of the transducer’s full-scale capacity.  
“KNOWN POINT 5/5”: point 5 of 5, usually 100% of the transducer’s full-scale capacity.  
NOTICE  
To insure both correct operation of the transducer and application of the load,  
the instrument expects the voltage applied at each known-load point to be  
increasing. For example, the load applied at Known-Load Point 2/2 must  
cause the transducer to produce a more positive voltage than at Known-Load  
Point 1/2.  
These menu items are only available with the Known-Load Calibration types.  
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10.5.6 CALIBRATEMenu  
Item  
This menu item performs a calibration according to what was entered in the CALI-  
BRATION TYPE and CALIBRATION DATA menu items.  
NOTICE  
Before performing a calibration, the transducer must be connected to the  
instrument, the CALIBRATION TYPE must be selected (see “CALIBRATION TYPE  
Menu Item” on page 67), and the CALIBRATION DATA must be entered (see “CALI-  
BRATION DATASub-Menu” on page 69).  
NOTICE  
For maximum accuracy, allow at least twenty minutes of warm-up with the exci-  
tation voltage applied to the transducer before calibration.  
If the CALIBRATION TYPE is Shunt Calibration...  
•
The display will read DOING SHUNT CAL, and prompt you to APPLY 00000 UNIT(where  
00000 and UNIT are previously entered as ZERO SCALE VALUE and DISPLAY.  
UNITS. When you have applied this load to the transducer, press [ENTER].  
The display will then read WORKING and calibration will take place. Upon com-  
pletion, the display will indicate DONE and the instrument will return to the RUN  
mode.  
•
If the CALIBRATION TYPE is mV/V Calibration...  
•
The display will read DOING MV/V CAL, and prompt you to APPLY 00000 UNIT (where  
00000 and UNIT are previously entered as ZERO SCALE VALUE and DISPLAY.  
UNITS). When you have applied this load to the transducer, press [ENTER].  
The display will then read WORKING and calibration will take place. Upon com-  
pletion, the display will indicate DONE and the instrument will return to the RUN  
mode.  
•
If the CALIBRATION TYPE is 2-Point Known Load Calibration...  
•
•
•
The display will read DOING 2POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/2and DISPLAY.  
UNITS). When you have applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 2/2 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
Upon completion, the display will indicate DONEand the instrument will return to  
the RUN mode.  
If the CALIBRATION TYPE is 3-Point Known Load Calibration...  
•
•
•
The display will read DOING 3POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/3and DISPLAY.  
UNITS). When you have applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are  
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 3/3 and DISPLAY. UNITS). When you have  
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applied this load to the transducer, press [ENTER].  
Upon completion, the display will indicate DONE and the instrument will return to the  
RUN mode.  
•
If the CALIBRATION TYPE is 5-Point Known Load Calibration...  
•
•
•
•
•
•
The display will read DOING 5POINT CAL, and prompt you to APPLY 00000 UNIT (where  
00000 and UNIT are previously entered as KNOWN POINT 1/5 and DISPLAY. UNITS).  
When you have applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00250 UNIT (where 00250 and UNIT are pre-  
viously entered as KNOWN POINT 2/5 and DISPLAY. UNITS). When you have applied this  
load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00500 UNIT (where 00500 and UNIT are pre-  
viously entered as KNOWN POINT 3/5 and DISPLAY. UNITS). When you have applied this  
load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00750 UNIT (where 00750 and UNIT are pre-  
viously entered as KNOWN POINT 4/5 and DISPLAY. UNITS). When you have applied this  
load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT (where 01000 and UNIT are pre-  
viously entered as KNOWN POINT 5/5 and DISPLAY. UNITS). When you have applied this  
load to the transducer, press [ENTER].  
The display will now read RETURN PNTS.=NO. If you press [ENTER], the display will  
indicate DONE and the instrument will return to the RUN mode. If you use the [UP]  
button and [ENTER] to select RETURN POINTS=YES, you may now apply the same  
loads again but in reverse order. This will allow the instrument to measure and  
partially eliminate any hysteresis that may be present in the transducer. After the  
loads have been applied again, the display will indicate DONE and the instrument  
will return to the RUN mode.  
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10.5.7 DAC SETUPSub-Menu  
This sub-menu contains four items that control the Digital-to-Analog Converter  
(DAC) output of the channel.  
DAC. CHANNELMenu Item  
This chooses which channel will drive the DAC output. Normally, the DAC located  
on a particular channel will be driven by that channel, but that need not be the  
case. For example, if several channels were assigned to load cells on a weighing  
platform, the sum of all channels could (mathematically) drive one channel’s DAC  
output.  
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog  
Output will have the frequency response specified by the channel’s FREQ. RESPONSE  
menu item. Otherwise, the Analog Output will operate more slowly.  
DAC. SOURCE Menu Item  
This designates the data source of the channel monitored by the analog output.  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak/valley detector  
was last cleared.  
•
“VALLEY” means the lowest value of the channel since the peak/valley detector  
was last cleared.  
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog  
Output will have the frequency response specified by the channel’s FREQ. RESPONSE  
menu item. Otherwise, the Analog Output will operate more slowly.  
DAC. ZERO-SCALEMenu Item  
This specifies what value, in engineering units, corresponds to zero output on the  
Analog Output.  
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if  
the channel has a voltage or current output and how it is configured. See “Analog  
Output Configuration” on page 76 the for details.  
If the UPDATE DAC SETUP menu item is set to “ON” and the DAC. CHANNEL menu item is  
set to this channel, this menu item may be automatically updated by a trans-  
ducer’s Signature Module. If the UPDATE DAC SETUP menu item is “OFF”, a trans-  
ducer’s Signature Module will not change this menu item.  
DAC. FULL-SCALEMenu Item  
Specifies what value, in engineering units, corresponds to full output on the Ana-  
log Output.  
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has  
a voltage or current output and how it is configured. See “Analog Output Configu-  
ration” on page 76 for details.  
If the UPDATE DAC SETUP menu item is set to “ON” and the DAC. CHANNEL menu item is  
set to this channel, this menu item may be automatically updated by a trans-  
ducer’s Signature Module. If the UPDATE DAC SETUP menu item is “OFF”, a trans-  
ducer’s Signature Module will not change this menu item.  
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10.5.8 SIGNATURE  
MODULESub-Menu  
UPDATE SIG.MOD?Menu Item  
Updates the information stored in the transducer’s Signature Module with any new  
settings that is entered into the instrument with the SETUP menus. The settings that  
will be updated are:  
•
•
•
•
•
EXCITATION  
FULL SCALE MV/V  
FULL SCALE VALUE  
SHUNT CAL VALUE  
DISPLAY. UNITS  
Note that changes made to the instruments display setup (such as decimal point and  
count-by settings) are not updated into the Signature Module.  
Updating enters these new settings from the instrument into the Signature Module. If  
you do not update the Signature Module, connect a different transducer to the instru-  
ment and then re-connect the original transducer again, the instrument will revert to  
the settings that are stored inside the Signature Module.  
The options for this menu item are:  
•
•
“NO” will not update the Signature Module.  
“YES” will display WORKING, update the Signature Module, then display DONE.  
DEFAULT SIG.MOD?Menu Item  
This menu item will overwrite any user settings in the Signature Module with the origi-  
nal default settings. The Signature Module always maintains a copy of the original  
default settings that were created at the factory.  
The options for this menu item are:  
•
•
“NO” will not restore original default settings.  
“YES” will display WORKING, update the Signature Module, with the original factory set-  
tings, then display DONE.  
UPDATE DAC SETUPMenu Item  
This menu item determines whether or not the DAC. FULL SCALE and DAC. ZERO SCALE Ana-  
log Output settings are overwritten with information from a Signature Module when a  
new transducer is detected by the instrument.  
The options for this menu item are:  
•
“YES” will allow a newly detected Signature Module to update the Analog Output  
settings.  
•
“NO” will not allow automatic updating of the Analog Output settings.  
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10.5.9 DIAGNOSTICS  
Sub-Menu  
DAC FULL SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its  
full-scale output, then DAC UPDATED is displayed. This is useful when calibrating or  
trimming the readout connected to the Analog Output.  
DAC ZERO SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its  
zero-scale output, then DAC UPDATED is displayed. This is useful when calibrating or  
trimming the readout connected to the Analog Output.  
VERSION INFOMenu Item  
DISPLAY ADCMenu Item  
This menu item displays the part number and revision level of the firmware used  
by this channels microprocessor.  
The options for this menu item are:  
•
“OFF” will allow the [VALUE] button to cycle through “TK” (tracking value), “HI”  
(peak value) and “LO” (valley value). This is the recommended option.  
“ON” will allow the “AD” (percentage of the Analog-to-Digital converter’s full-  
scale digitizing capability) display source to be available along with “TK” (track-  
ing value), “HI” (peak value) and “LO” (valley value) when the [VALUE] button  
is pressed on the front panel.  
•
The Analog-to-Digital converter counts are displayed as a percentage from  
-100.00% to 100.00%.  
This can be used to verify that the transducer’s output does not exceed the input  
range of the instrument. If the Analog-to-Digital converter readings display more  
than +/-10% when there is no load on the transducer, the transducer has a high  
zero offset.  
LINEARIZATION Menu Item  
The options for this menu item are:  
•
“ON” will allow linearization data obtained from either the Signature Module or a  
3-Point or 5-Point Known Load Calibration to affect a channel’s scaled values.  
This is the recommended option.  
•
“OFF” will not allow linearization data to effect the channel’s scaled values.  
This is useful when diagnosing problems in a calibration procedure.  
DISABLE CHANNEL Menu Item  
The options for this menu item are:  
•
“ON” will bypass the INITIALIZE and RUN modes of the channel. The track,  
peak and valley values of the channel are forced to 0. This option is helpful  
when a channel is installed but not being used. ERROR 46, which will nor-  
mally occur when the (+)Sense and (-)Sense wires are not connected prop-  
erly, will be surpressed.  
•
“OFF” will allow normal operation of the channel.  
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10.6 Analog Output Configuration  
10.6.1 Identifying the  
Output Type  
A Strain-Gage Input channel is available with one of two types of digital-to-analog  
(DAC) outputs: voltage or current. You can determine which type of output a  
channel has by one of three ways:  
•
•
Consulting the instrument’s Customer Information Sheet  
Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn TYPE menu item where  
nn is the number of the channel. If the channel’s type is STRAIN GAGE V, it has a  
voltage output. If the channel’s type is STRAIN GAGE I, it has a current output.  
Examining the channel’s circuit board as shown in the figure below.  
•
10.6.2 Channel Menu Items  
10.6.3 Output Selection  
The Analog Output can be driven by any channel’s track, peak or valley value.  
See the “Channel Menu” section earlier in this chapter for a complete listing of  
SETUP menu items available on the DAC. SETUP sub-menu.  
Jumpers located on the channel’s circuit board determine what outputs are gener-  
ated when the value selected to drive the Analog Output (from the DAC. CHANNEL and  
DAC. SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.  
Figure 10-3: Digital-to-Analog Output Jumper Locations  
DAC. ZERO SCALE  
DAC. FULL SCALE  
J30  
J31  
Output  
Output  
jumper  
jumper  
CHANNELS WITH VOLTAGE OUPUT  
0-5V  
±5V  
2.5 Volts  
0 Volts  
5 Volts  
0 Volts  
5 Volts  
5 Volts  
open  
open  
closed  
open  
0-10V  
±10V  
10 Volts  
10 Volts  
closed  
closed  
closed  
open  
CHANNELS WITH CURRENT OUTPUT  
4-20mA  
4-20mA  
4 mA  
20 mA  
20 mA  
open  
open  
open  
12 mA  
closed  
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10.7 Troubleshooting  
10.7.1 Error Messages  
See “Error Messages” on page 151 for information relating to error messages.  
10.7.2 Common Problems  
and Solutions  
Erratic Display  
Check electrical connections for continuity and the transducer’s wiring code from  
its Certificate of Calibration.  
Make sure that the load on the transducer is constant.  
Check millivolt input to the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins with a  
voltmeter.  
+OVLD or -OVLD on Display  
Indicates that the voltage across the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins  
is overranging or underranging the amplifier circuit. Make certain all wires are  
connected properly.  
If you remove all load from the transducer and you still see this message, the  
(+)Excitation (“+EXC”) or (-)Excitation (“-EXC”) pins may be shorted to the (+)Sig-  
nal (“+SIG”) or (-)Signal (“-SIG”) pins.  
If you remove all load from the transducer and you get a numeric reading, the  
transducer may have a high zero offset. Use the channel’s SETUP menu and set  
DIAGNOSTICS -> DISPLAY ADC to “ON”; in the RUN mode this will allow the [VALUE] but-  
ton to display raw A/D readings as a percentage of its full-scale. If the raw A/D  
readings display more than +/-10% when there is no load on the transducer, the  
transducer has a high zero offset.  
Analog Output Incorrect  
Make certain of the type of Analog Output (voltage or current) that the channel is  
equipped with; see “Identifying the Output Type” on page 76.  
Use the DIAGNOSTICS-> DAC FULL SCALEand DIAGNOSTICS -> DAC ZERO SCALE menu items to  
force the Analog Output to a known output. Then, adjust your readout device,  
panel meter, PLC or data acquisition system to match.  
Check the output selection jumpers; see “Output Selection” on page 76.  
“APPLY 00000” on Power-up  
The channel has detected that the transducer connected to the instrument is dif-  
ferent than the one the channel was last calibrated with. Because the CALIBRATION  
TYPE is set to either Shunt Calibration or mV/V Calibration, the instrument is  
prompting you to apply zero load in order to auto-calibrate to this new transducer.  
Do one of the following, depending on the situation:  
•
•
Re-connect the original transducer to the channel and re-start the instrument.  
Press [ENTER] to re-calibrate the channel to this new transducer using Shunt  
or mV/V Calibration and accept the presently applied load as “0”. (In situa-  
tions where one can’t apply “0” load to an absolute pressure transducer or a  
load cell with a pre-load, you can change the CALIBRATION DATA -> ZERO-SCALE  
VALUE menu item from “0” to a load that can be applied. For example, 14.7  
PSIA or the known pre-load on the load cell.  
•
Use the CALIBRATE menu item to perform a Known-Load Calibration with this  
new transducer.  
Auxiliary Function Pins Not  
Operating  
Make sure that the AUX1 FUNCTION or AUX2 FUNCTION SETUP menu items are set cor-  
rectly; if they are set to DISABLED then they will not operate.  
The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10,  
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not pin 8, to activate them.  
Sensitivity to EMI/RFI  
To obtain maximum immunity to electromagnetic or radio frequency interference,  
make certain that the shields of the transducer cables are connected to the “cable  
shield connection screw” on the rear panel of the instrument. See “Unamplified  
Transducer Connection to Strain-Gage Input Channel” on page 60, “External  
Arrangement of AC powered SC1000 and SC2000” on page 27 and “External  
Arrangement of Model SC3004” on page 33.  
Shunt Calibration Feature not  
Operating  
To activate the channel’s shunt calibration function while the instrument is in RUN  
Mode, see “Shunt Calibration Check” on page 21. This serves as a quick check of  
the shunt cal feature.  
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Chapter 11  
AC/AC-LVDT Input Channel  
11.1 Features  
The AC/AC-LVDT Input channel provides an AC excitation voltage to and accepts  
AC signals from LVDT (Linear Variable Differential Transformer) transducers.  
These signals are digitized, converted into engineering units, and placed into the  
track, peak and valley data values of the channel. Setup and calibration of the  
channel are made manually through the SETUP mode.  
The analog-to-digital converter features adjustable digital, low-pass filtering, 12- to  
18-bit resolution (depending on the filter setting) and has several different input  
ranges. These many input ranges allow ±25,000 count resolution (at the slowest  
filter setting) for a wide variety of LVDT outputs.  
The AC/AC-LVDT Input channel is calibrated to the transducer by using known-  
displacement calibration.  
Two rear panel control inputs can be field-configured for such functions as remote  
tare, disabling peak/valley detection and clearing the peak/valley values. A stan-  
dard voltage or optional current digital-to-analog output is also provided.  
NOTICE  
To use a DC/DC LVDT with an SC instrument, use a High-Level Input channel  
instead of an AC/AC-LVDT Input channel.  
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11.2 Wiring  
Connect your transducer to an AC/AC-LVDT Input channel by wiring it to the 12-pin  
connector of that channel. The Customer Information Sheet that shipped with the  
instrument describes which cards are installed in each channel. The pin-out for this  
connector is shown on the following table.  
Table 5-5: AC/AC-LVDT Input Channel Pin Connections  
Pin  
Label  
Function  
Reference Pin  
1 (top)  
+EXC  
N/C  
(+)Excitation  
No connection  
No connection  
(-)Excitation  
(+)Signal  
10  
2
3
N/C  
4
-EXC  
+SIG  
-SIG  
10  
10  
10  
8
5
6
(-)Signal  
7
+OUT  
-OUT  
N/C  
Analog Output  
Analog Return  
No connection  
Digital Ground  
8
-
9
10  
11  
DGND  
AUX1  
-
Auxiliary Function 1  
(connect to pin 10 to activate)  
10  
12  
(bottom)  
AUX2  
Auxiliary Function 2  
(connect to pin 10 to activate)  
10  
The Analog Output and Analog Return pins are electrically isolated from all other pins  
on the instrument.  
Figure 11-1: Connection of Four- or Five-wire AC/AC-LVDT  
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11.3 Calibration Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu items is given in  
“Setup Menu Reference” on page 157.  
Step 1: Wire the transducer to the channel’s connector.  
See “Wiring” on page 80 for details.  
Step 2: Enter the CALIBRATION TYPE.  
You must have the capability to apply either two, three, or five known dis-  
placements to the transducer. The CALIBRATION TYPE menu item allows you to  
specify how many known displacements will be applied during calibration.  
Step 3: Enter the CALIBRATION DATA.  
Consult the Certificate of Calibration for the transducer when entering infor-  
mation in the CALIBRATION DATA sub-menu.  
Step 4: Determine the LVDT’s electrical null point, then physically mount it.  
The electrical null is the armature position that produces the least electrical  
output. Once this point has been determined, the transducer is physically  
clamped into position. See “Electrical Null and Transducer Mounting” on  
page 93.  
Step 5: Perform the calibration.  
Using the CALIBRATE menu item starts the calibration process. You will be  
prompted to apply displacements to the transducer as required.  
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11.4 Specifications  
TRANSDUCER INPUT  
Transducer type  
full-bridge, AC/AC-LVDT  
Excitation Voltage  
3 VRMS @ 5kHz,  
short circuit protected  
Transducer full-scale output  
Amplifier Gain Selection  
Calibration Type  
.1 to 15 VRMS @ 3 VRMS excitation  
automatic  
2-, 3- or 5- point known displacement  
24-bit Sigma-Delta  
A/D Converter  
Low-pass filter  
digital, 24-tap FIR  
Resolution  
see page 83  
Frequency Response  
see page 83  
AUXILLIARY INPUTS  
Quantity  
2
Type  
momentary contact closure  
< 5ms  
Response Time  
Field-Selectable Functions  
tare on, tare off,  
peak/valley clear, peak/valley hold,  
track hold  
ANALOG OUTPUT  
Voltage range (voltage output  
channels)  
5, ±5, 10 or ±10 VDC  
4-20 mA  
Current range (current output  
channels)  
Source  
Isolation  
any channel’s track, peak or valley value  
500V  
Resolution  
13 bits  
Frequency Response same as input if driven by the same chan-  
nel’s tracking data  
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11.5 Channel Menu  
Each AC/AC-LVDT Input channel is configured and calibrated via its channel  
menu. Detailed instructions on operating the instrument in the SETUP Menu  
mode can be found in “SETUP Menu mode” on page 23. A diagram of all menus  
is located in “Setup Menu Reference” on page 157.  
11.5.1 OPERATION  
Sub-Menu  
This menu controls the operation of this channel when the instrument is in the  
RUN mode.  
AUTO-ZEROMenu Item  
This enables or disables the channel’s automatic zeroing function. When  
enabled, the channel will reset its tracking value to zero when the tracking value is  
less than 10 display counts for a period of 10 seconds. This removes the effect of  
slight temperature shifts in the transducer’s output.  
NOTICE  
To compensate for the transducer’s initial warm-up shift, the auto-zero function  
operates every 2 seconds during the first 60 seconds of RUN mode operation.  
The two options for this menu item are “ON” and “OFF”.  
FREQ. RESPONSEMenu Item  
This sets the frequency response, step response, and resolution of the channel  
according to the table below. The tracking value, peak/valley detector values and  
analog output on this channel are all affected. The default value of 016. HERTZ is  
suitable for most applications.  
Resolution (counts) (not  
including minimum 10%  
overrange/underrange capability)  
Frequency  
Response  
Step Response  
(ms) (typical)  
002. HERTZ/FAST  
002. HERTZ  
008. HERTZ  
016. HERTZ  
032. HERTZ  
050. HERTZ  
100. HERTZ  
250. HERTZ  
500. HERTZ  
800. HERTZ  
40  
440  
110  
55  
28  
16  
8
±25000  
±25000  
±15000  
±10000  
±10000  
±5000  
±5000  
3
±2000  
2
±2000  
2
±2000  
NOTICE  
Your particular LVDT may have a lower frequency response than the AC-AC  
LVDT Input channel.  
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POWER-ON SOURCE Menu Item  
This menu selects which value is displayed by the channel when first entering the  
RUN mode.  
The choices are:  
•
•
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel.  
“VALLEY” means the lowest value of the channel.  
“TRACK / PEAK” means the live tracking value and the highest value of the channel.  
(Only available on Model SC3004).  
•
•
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.  
(Only available on Model SC3004).  
“PEAK / VALLEY” means the highest and lowest values of the channel.  
(Only available on Model SC3004).  
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11.5.2 DISPLAY SETUP  
Sub-Menu  
This menu controls how data values are displayed by the channel and transmitted  
via serial communications.  
DISPLAY. DIGITSMenu Item  
Selects the number of digits displayed by the channel. The choices are:  
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-  
its (±99999).  
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and  
negative numbers with five full digits (-99999).  
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)  
and negative numbers with six digits (-999999).  
DISPLAY. DECPTMenu Item  
Selects the decimal point location on the channel’s display and serial communica-  
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the  
right and left.  
DISPLAY. COUNT-BYMenu Item  
Determines by what value the display increments or decrements. This will make  
the display less sensitive to a noisy signal. The choices are:  
•
•
•
•
•
•
•
•
“00001”  
“00002”  
“00005”  
“00010”  
“00020”  
“00050”  
“00100”  
“00200”  
DISPLAY. UNITSMenu Item  
Specifies the four character label that is displayed to the right of the channel’s val-  
ues.  
NOTICE  
This menu item doesn’t change the mathematical scaling of the channel’s val-  
ues; that can be changed by altering the “CALIBRATION DATA -> KNOWN POINT X/Y”  
menu items and then performing a re-calibration.  
When a character position is flashing press the [UP] or [DOWN] button to change  
the character. Press [ENTER] to advance to the next character.  
DISPLAY. AVERAGEMenu Item  
Controls the speed with which the channel’s display values will update. Display  
averaging does not affect the channel’s analog output or its peak/valley detection,  
which will proceed at the speed selected by the ”OPERATION -> FREQ. RESPONSE” menu  
item. The choices are:  
•
“ON” means that the display will update four times each second. The channel’s  
values will be averaged for 1/4 second, then displayed.  
•
“OFF” means that the channel’s display will update as quickly as possible.  
11.5.3AUXnFUNCTIONMenu  
Items  
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine what happens when the  
Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connec-  
tor are activated. These pins are “activated” when they are connected to the  
DGND pin. The choices are:  
•
•
“DISABLED” means that activating the pin does nothing.  
“TRACK HOLD” means that the tracking, peak and valley values will not be  
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updated.  
•
•
•
•
“HIGH/LOW HOLD” means that the peak and valley values will not be updated.  
“HIGH/LOW CLEAR” means that the peak and valley values are reset.  
“TARE ON” activates the channel’s Tare function (resets it to zero).  
“TARE OFF” deactivates the channel’s Tare function.  
As the Auxiliary Function pins are not isolated, it is recommended that a push-button  
switch or relay is used to connect these pins to the DGND pin.  
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11.5.4 CALIBRATION TYPE  
The choices for this menu item are:  
Menu Item  
•
“TYPE= 2 POINT CAL” means 2-Point Known Displacement Calibration. You are  
prompted to apply the displacements to the transducer that were entered in  
the “KNOWN POINT 1/2” and “KNOWN POINT 2/2” registers. This technique assumes  
that the transducer is linear throughout the entire stroke, so the usual dis-  
placements used are zero scale and full scale.  
•
“TYPE= 3 POINT CAL” means 3-Point Known Displacement Calibration. You are  
prompted to apply the displacements to the transducer that were entered in  
the “KNOWN POINT 1/3” and “KNOWN POINT 2/3” and “KNOWN POINT 3/3” registers. This  
technique can be used to compensate for the different sensitivities that an  
LVDT may have on each side of its electrical null. The usual displacements  
used are zero scale, half scale and full scale, but you are not restricted to  
these displacements.  
•
“TYPE= 5 POINT CAL” means 5-Point Known Displacement Calibration. You are  
prompted to apply the displacements to the transducer that were entered in  
the “KNOWN POINT 1/5”, “KNOWN POINT 2/5”, “KNOWN POINT 3/5”, “KNOWN POINT 4/5” and  
“KNOWN POINT 5/5” registers. This technique can be used to compensate for the  
non-linearity in the transducer as well as the different sensitivities on each  
side of its electrical null. The usual displacements used are zero scale, one-  
quarter scale, half scale, three-quarters scale and full scale, but you are not  
restricted to these displacements.  
The selection of the calibration type affects what menu items appear in the CALI-  
BRATION DATA sub-menu.  
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11.5.5 CALIBRATION  
DATASub-Menu  
This sub-menu enters the values that will be used by the instrument when it calibrates  
itself to the transducer. The menu items that are displayed will change according to  
what the CALIBRATION TYPE is set for.  
FULL SCALE VRMSMenu Item  
The transducer output when its full-scale displacement is applied to it, in Volts RMS  
(root-mean-squared) assuming 3 VRMS excitation. This menu item is used by the  
instrument to set gain of its amplifier circuit. This value is normally found on the trans-  
ducer’s Certificate of Calibration issued by its manufacturer.  
KNOWN POINT x/yMenu Items  
This enters the engineering units for the known-displacement calibration points.  
These points must match the actually displacements that you will apply to the trans-  
ducer during calibration. The number of calibrations points depends on the CALIBRATION  
TYPE.  
When using the 2-Point Known Displacement Calibration type, the following menu  
items are available:  
•
•
“KNOWN POINT 1/2”: point 1 of 2, usually 0% of the transducer’s full-scale capacity.  
“KNOWN POINT 2/2”: point 2 of 2, usually 100% of the transducer’s full-scale capacity.  
When using the 3-Point Known Displacement Calibration type, the following menu  
items are available:  
•
•
•
“KNOWN POINT 1/3”: point 1 of 3, usually 0% of the transducer’s full-scale capacity.  
“KNOWN POINT 2/3”: point 2 of 3, usually 50% of the transducer’s full-scale capacity.  
“KNOWN POINT 3/3”: point 3 of 3, usually 100% of the transducer’s full-scale capacity.  
When using the 5-Point Known Displacement Calibration type, the following menu  
items are available:  
•
•
•
•
•
“KNOWN POINT 1/5”: point 1 of 5, usually 0% of the transducer’s full-scale capacity.  
“KNOWN POINT 2/5”: point 2 of 5, usually 25% of the transducer’s full-scale capacity.  
“KNOWN POINT 3/5”: point 3 of 5, usually 50% of the transducer’s full-scale capacity.  
“KNOWN POINT 4/5”: point 4 of 5, usually 75% of the transducer’s full-scale capacity.  
“KNOWN POINT 5/5”: point 5 of 5, usually 100% of the transducer’s full-scale capacity.  
NOTICE  
To insure both correct operation of the transducer and application of the dis-  
placement, the instrument expects the voltage applied at each known-displace-  
ment point to be increasing. For example, the displacement applied at Known-  
Displacement Point 2/2 must cause the transducer to produce a more positive  
voltage than at Known-Displacement Point 1/2. You may need to swap the  
(+)Signal and (-)Signal wires on the 12-pin channel connector to accomplish  
this.  
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11.5.6 CALIBRATEMenu  
Item  
This menu item performs a calibration according to what was entered in the CALI-  
BRATION TYPE and CALIBRATION DATA menu items.  
NOTICE  
Before performing a calibration,  
the transducer must be connected to the instrument, the CALIBRATION TYPE must  
be selected (see “CALIBRATION TYPEMenu Item” on page 87) and the CALIBRA-  
TION DATA must be entered (see “CALIBRATION DATASub-Menu” on page 88).  
NOTICE  
For maximum accuracy, allow at least twenty minutes of warm-up with the exci-  
tation voltage applied to the transducer before calibration.  
If the CALIBRATION TYPE is 2-Point Known Displacement Calibration...  
•
The display will read DOING 2POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/2and DISPLAY.  
UNITS). When you have applied this displacement to the transducer, press  
[ENTER].  
•
•
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 2/2 and DISPLAY. UNITS). When you have  
applied this displacement to the transducer, press [ENTER].  
Upon completion, the display will indicate DONEand the instrument will return to  
the RUN mode.  
If the CALIBRATION TYPE is 3-Point Known Displacement Calibration...  
•
The display will read DOING 3POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/3and DISPLAY.  
UNITS). When you have applied this displacement to the transducer, press  
[ENTER].  
•
•
•
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are  
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have  
applied this displacement to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have  
applied this displacement to the transducer, press [ENTER].  
Upon completion, the display will indicate DONEand the instrument will return to  
the RUN mode.  
If the CALIBRATION TYPE is 5-Point Known Displacement Calibration...  
•
The display will read DOING 5POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/5and DISPLAY.  
UNITS). When you have applied this displacement to the transducer, press  
[ENTER].  
•
•
The display will read WORKING, then APPLY 00250 UNIT(where 00250 and UNIT are  
previously entered as KNOWN POINT 2/5 and DISPLAY. UNITS). When you have  
applied this displacement to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are  
SC Series Instruction Manual page 89  
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previously entered as KNOWN POINT 3/5 and DISPLAY. UNITS). When you have applied  
this displacement to the transducer, press [ENTER].  
•
•
•
The display will read WORKING, then APPLY 00750 UNIT (where 00750 and UNIT are pre-  
viously entered as KNOWN POINT 4/5 and DISPLAY. UNITS). When you have applied this  
displacement to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT (where 01000 and UNIT are pre-  
viously entered as KNOWN POINT 5/5 and DISPLAY. UNITS). When you have applied this  
displacement to the transducer, press [ENTER].  
Upon completion, the display will indicate DONE and the instrument will return to the  
RUN mode.  
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11.5.7 DAC SETUPSub-Menu  
This sub-menu contains four items that control the Digital-to-Analog (DAC) output  
of the channel.  
DAC. CHANNELMenu Item  
This chooses which channel will drive the DAC output. Normally, the DAC located  
on a particular channel will be driven by that channel, but that need not be the  
case. For example, if several channels were assigned to various transducers in a  
system, the sum of all channels could (mathematically) drive one channel’s DAC  
output.  
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog  
Output will have the frequency response specified by the channel’s FREQ. RESPONSE  
menu item. Otherwise, the Analog Output will operate more slowly.  
DAC. SOURCE Menu Item  
This designates the data source of the channel monitored by the analog output.  
Each channel has three data sources: the live tracking value (TRACK), its highest  
value (PEAK), and its lowest value (VALLEY).  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak/valley detector  
was last cleared.  
•
“VALLEY” means the lowest value of the channel since the peak/valley detector  
was last cleared.  
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog  
Output will have the frequency response specified by the channel’s FREQ. RESPONSE  
menu item. Otherwise, the Analog Output will operate more slowly.  
DAC. ZERO-SCALEMenu Item  
This specifies what value, in engineering units, corresponds to zero output on the  
Analog Output.  
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if  
the channel has a voltage or current output and how it is configured. See “Analog  
Output Configuration” on page 94 for details.  
DAC. FULL-SCALEMenu Item  
This specifies what value, in engineering units, corresponds to full output on the  
Analog Output.  
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has  
a voltage or current output and how it is configured. See “Analog Output Configu-  
ration” on page 94 for details.  
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11.5.8 DIAGNOSTICS  
Sub-Menu  
DAC FULL SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its full-  
scale output, then DAC UPDATED is displayed. This is useful when calibrating or trimming  
the readout connected to the Analog Output.  
DAC ZERO SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its  
zero-scale output, then DAC UPDATEDis displayed. This is useful when calibrating or trim-  
ming the readout connected to the Analog Output.  
VERSION INFOMenu Item  
DISPLAY ADCMenu Item  
This menu item displays the part number and revision level of the firmware used by  
this channels microprocessor.  
The options for this menu item are:  
•
“OFF” will allow the [VALUE] button to cycle through “TK” (tracking value), “HI” (peak  
value) and “LO” (valley value). This is the recommended option.  
“ON” will allow the “AD” (percentage of the Analog-to-Digital converter’s full-scale  
digitizing capability) display source to be available along with “TK” (tracking value),  
“HI” (peak value) and “LO” (valley value) when the [VALUE] button is pressed on  
the front panel.  
•
The Analog-to-Digital converter counts are displayed as a percentage from -100.00%  
to 100.00%.  
This can be used to establish the transducer’s electrical null prior to mounting. See  
“Electrical Null and Transducer Mounting” on page 93 for this procedure.  
LINEARIZATION Menu Item  
The options for this menu item are:  
•
“ON” will allow linearization data obtained from a 3-Point or 5-Point Known Dis-  
placement Calibration to affect a channel’s scaled values. This is the recom-  
mended option.  
•
“OFF” will not allow linearization data to effect the channel’s scaled values.  
DISABLE CHANNEL Menu Item  
The options for this menu item are:  
•
“ON” will bypass the INITIALIZE and RUN modes of the channel. The track, peak  
and valley values of the channel are forced to 0.  
•
“OFF” will allow normal operation of the channel.  
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11.6 Electrical Null and Transducer Mounting  
11.6.1 Overview  
The mechanical travel of an LVDT transducer is not the same as its usable mea-  
suring range. All LVDTs exhibit some non-linearity near the ends of its armature’s  
mechanical travel. To insure that the LVDT will be used in its linear measuring  
range, its electrical null point must be determined. This electrical null point is the  
armature position which produces the minimal electrical signal output. After elec-  
trical null has been established, the LVDT is clamped down into final position in its  
mounting fixture.  
As long as the LVDT remains clamped in this position, you do not need to re-  
establish the electrical null prior to every calibration.  
11.6.2 Procedure  
Step 1: Use the channel’s SETUP menu and set DIAGNOSTICS -> DISPLAY ADC to “ON”.  
Exit the SETUP menu and re-start the instrument.  
Step 2: Display the channel to which the LVDT is connected. Press and release  
the [VALUE] button until the “AD” display source is shown. This is the raw  
analog-to-digital converter readings displayed as a percentage of its full-  
scale (-100% to +100%).  
Step 3: Move the LVDT’s armature to the position which displays the lowest value  
of raw analog-to-digital converter readings (i.e. a number close to 00.000%.  
This is the LVDT’s electrical null.  
Step 4: Firmly clamp down the LVDT’s body.  
Step 5: Move the LVDT’s armature to roughly the position you wish to define as  
“positive full scale”. If the displayed analog-to-digital converter reading is a  
negative value, you must swap the wires connected to the (+)Signal and  
(-)Signal pins (labeled as “+SIG” and “-SIG”) on the channel’s 12-pin con-  
nector to make the reading positive.  
SC Series Instruction Manual page 93  
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11.7 Analog Output Configuration  
11.7.1 Identifying the  
Output Type  
An AC/AC-LVDT Input channel is available with one of two types of digital-to-analog  
(DAC) outputs: voltage or current. You can determine which type of output a channel  
has by one of three ways:  
•
•
Consulting the instrument’s Customer Information Sheet  
Examining the SYSTEM MENU-> CONFIGURATION-> CHANNELnn TYPEmenu item where nn is  
the number of the channel. If the channel’s type is AC-AC LVDT V, it has a voltage  
output. If the channel’s type is AC-AC LVDT I, it has a current output.  
Examining the channel’s circuit board as shown in the figure below.  
•
11.7.2 Channel Menu  
Items  
The Analog Output can be driven by any channel’s track, peak or valley value.  
See the “Channel Menu” section earlier in this chapter for a complete listing of SETUP  
menu items available on the DAC. SETUP sub-menu.  
11.7.3 Output Selection  
Jumpers located on the channel’s circuit board determine what outputs are generated  
when the value selected to drive the Analog Output (from the DAC. CHANNEL and DAC.  
SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.  
Figure 11-2: Digital-to-Analog Output Jumper Locations  
DAC. ZERO SCALE  
DAC. FULL SCALE  
J30  
J31  
Output  
Output  
jumper  
jumper  
CHANNELS WITH VOLTAGE OUPUT  
0-5V  
±5V  
2.5 Volts  
0 Volts  
5 Volts  
0 Volts  
5 Volts  
5 Volts  
open  
open  
closed  
open  
0-10V  
±10V  
10 Volts  
10 Volts  
closed  
closed  
closed  
open  
CHANNELS WITH CURRENT OUTPUT  
4-20mA  
4-20mA  
4 mA  
20 mA  
20 mA  
open  
open  
open  
12 mA  
closed  
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11.8 Troubleshooting  
11.8.1 Error Messages  
See “Error Messages” on page 151 for information relating to error messages.  
11.8.2 Common  
Problems and Solutions  
Erratic Display  
Check electrical connections for continuity and the transducer’s wiring code from its  
Certificate of Calibration.  
Make sure that the displacement on the transducer is constant.  
Check the input to the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins with an RMS volt-  
meter in its “AC Voltage” mode. Using a voltmeter in its DC Voltage mode will always  
display 0.  
+OVLD or -OVLD on Display  
Indicates that the voltage across the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins is  
overranging or underranging the amplifier circuit. Make certain all wires are con-  
nected properly, the “CALIBRATION DATA-> FULL SCALE VRMS” menu item is set correctly, and  
that a calibration has been performed per “Calibration Procedure” on page 81.  
If you move the armature back to its electrical null point and you still see this mes-  
sage, the (+)Excitation (“+EXC”) or (-)Excitation (“-EXC”) pins may be shorted to the  
(+)Signal (“+SIG”) or (-)Signal (“-SIG”) pins.  
Analog Output Incorrect  
Make certain of the type of Analog Output (voltage or current) that the channel is  
equipped with; see “Identifying the Output Type” on page 94.  
Use the DIAGNOSTICS -> DAC FULL SCALE and DIAGNOSTICS -> DAC ZERO SCALE menu items to  
force the Analog Output to a known output. Then, adjust your readout device, panel  
meter, PLC or data acquisition system to match.  
Check the output selection jumpers; see “Output Selection” on page 94.  
Auxiliary Function Pins Not  
Operating  
Make sure that the AUX1 FUNCTION or AUX2 FUNCTION SETUP menu items are set correctly;  
if they are set to DISABLED then they will not operate.  
The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10, not pin  
8, to activate them.  
Sensitivity to EMI/RFI  
To obtain maximum immunity to electromagnetic or radio frequency interference,  
make certain that the shields of the transducer cables are connected to the “cable  
shield connection screw” on the rear panel of the instrument. See “Connection of  
Four- or Five-wire AC/AC-LVDT” on page 80, “External Arrangement of AC powered  
SC1000 and SC2000” on page 27 and “External Arrangement of Model SC3004” on  
page 33.  
Non-linearity at the end of  
the LVDT’smechanical range  
Most LVDTs have a usable measuring range that is smaller than their mechanical  
range. See “Electrical Null and Transducer Mounting” on page 93 for information on  
establishing the LVDT’s electrical null point to insure that the LVDT will be operated in  
its usable measuring range.  
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Chapter 12  
High-Level Input Channel  
12.1 Features  
The High-Level Input channel provides a DC supply voltage to and accepts volt-  
age or current signals from amplified transducers such as pressure transducers,  
load cells and DC-DC LVDTs. These signals are digitized, converted into engi-  
neering units, and placed into the track, peak and valley data values of the chan-  
nel. Setup and calibration of the channel is made manually through the SETUP  
menu mode. Signature Calibration is not available with amplified transducers.  
The analog-to-digital converter input circuit features adjustable digital, low-pass  
filtering, 12- to 18-bit resolution (depending on the filter setting) and has several  
different input ranges. These many ranges allow ±50,000 count resolution (at the  
slowest filter setting) across a wide variety of input ranges.  
A combination of SETUP menu items and hardware jumpers are used to config-  
ure the excitation supply output voltage (+28 VDC, ±15 VDC, +15 VDC or +12  
VDC), the input type (voltage or current) and input reference (differential or single  
ended).  
Two methods of calibrating the High-Level Input channel to the transducer are  
available: known-load calibration and shunt calibration. The benefits of each are  
discussed in “CALIBRATION TYPEMenu Item” on page 113.  
Two rear panel control inputs can be field-configured for such functions as remote  
tare, disabling peak/valley detection and clearing the peak/valley values. A volt-  
age or current digital-to-analog output is also provided.  
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12.2 Wiring  
12.2.1 Channel  
Connector  
Connect the amplified transducer, in-line amplifier or DC-DC LVDT to a High-Level  
Input channel by wiring it to the 12-pin connector of that channel. The Customer Infor-  
mation Sheet that shipped with the instrument describes which cards are installed in  
each channel. The pin-out for this connector is shown on the following table.  
Table 1-6: High-Level Input Channel Pin Connections  
Pin  
Label  
Function  
Reference Pin  
1 (top)  
+EXC  
SHUNT1  
-SHUNT2  
-EXC  
(+)Excitation  
Shunt Cal Relay  
Shunt Cal Relay  
(-)Excitation  
10  
3
2
3
2
4
10  
10  
10  
8
5
+SIG  
(+)Signal  
6
-SIG  
(-)Signal  
7
+OUT  
-OUT  
Analog Output  
Analog Return  
No Connection  
Digital Ground  
8
-
9
N/C  
-
10  
11  
DGND  
AUX1  
-
Auxiliary Function 1  
(connect to pin 10 to activate)  
10  
12  
(bottom)  
AUX2  
Auxiliary Function 2  
(connect to pin 10 to activate)  
10  
The Analog Output and Analog Return pins are electrically isolated from all other pins  
on the instrument.  
CAUTION  
Identify the amplified transducer or in-line amplifier according to the Option  
Code or model name as shown on its serial number tag. Use this information  
to select the correct wiring diagram on the following pages. Incorrect wiring can  
damage both the transducer and the instrument.  
Failure to comply with these instructions may result in product damage.  
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12.2.2 Bi-polar Voltage  
Amplifiers  
Use the following wiring diagram when connecting an amplified transducer, in-line  
amplifier or DC-DC LVDT with a bi-polar voltage amplifier to a High-Level Input  
channel. Examples of such devices include  
•
•
•
transducers with Option 2a or Option 2b internal amplifiers (with shunt cal)  
Models UBP or UBP-10 Universal In-Line amplifiers (with shunt cal)  
Models JEC (replaces model MDL), JEC-AG (replaces model DLA), JEC-C  
(replaces model MDLC), DW7U, DW7C and DW7S DC-DC LVDTs (no shunt  
cal)  
NOTICE  
See “Low Voltage DC-DC LVDTs” on page 105 for information on wiring Model  
DLB, DLE and DLF low-voltage DC-DC LVDTs.  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
.
(+)Excitation supply: “+15 VDC”  
(-)Excitation supply: “-15 VDC”  
Signal type: “voltage”  
Signal reference: “single ended”  
Figure 12-1: “Bi-polar Voltage Amp” Connection to High-Level Input Channel  
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12.2.3 “3-wire  
Voltage” Amplifiers  
Use the following wiring diagram when connecting an amplified transducer or in-line  
amplifier with a 3-wire voltage amplifier to a High-Level Input channel. Examples of  
such devices include  
•
•
transducers with Option 2c or Option 2t internal amplifiers (with shunt cal)  
Models UV or UV-10 Universal In-Line amplifiers (with shunt cal)  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
(+)Excitation supply: “+28 VDC”  
(-)Excitation supply: “GND”  
Signal type: “voltage”  
Signal reference: “differential”  
Figure 12-2: “3-wire Voltage Amp” Connection to High-Level Input Channel  
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12.2.4 “3-wire Voltage”  
Amplifiers with Single-wire  
Shunt Cal  
Use the following wiring diagram when connecting an amplified transducer with a  
3-wire voltage amplifier with single-wire shunt calibration to a High-Level Input  
channel. An example of a such device includes  
•
transducers with Option 2d or Option 2g internal amplifiers (with shunt cal)  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
(+)Excitation supply: “+28 VDC”  
(-)Excitation supply: “GND”  
Signal type: “voltage”  
Signal reference: “differential”  
Figure 12-3: “3-wire Voltage Amp w/Single-Wire Shunt Cal” Connection to High-Level Input  
Channel  
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12.2.5“3-wireCurrent”  
Amplifiers  
Use the following wiring diagram when connecting an amplified transducer or in-line  
amplifier with a 3-wire current amplifier to a High-Level Input channel. Examples of  
such devices include  
•
•
transducers with the Option 2j internal amplifier (with shunt cal)  
Model U3W Universal In-Line amplifiers (with shunt cal)  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
(+)Excitation supply: “+28 VDC”  
(-)Excitation supply: “GND”  
Signal type: “current”  
Signal reference: “single ended”  
Figure 12-4: “3-wire Current Amp” Connection to High-Level Input Channel  
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12.2.6 “2-wire Current”  
Amplifiers with Buffered  
Shunt Cal  
Use the following wiring diagram when connecting an amplified transducer or in-  
line amplifier with a 2-wire current amplifier to a High-Level Input channel. Exam-  
ples of such devices include  
•
•
•
transducers with the Option 2k internal amplifier (not equipped with shunt cal)  
transducers with the Option 2k,3d internal amplifier (buffered shunt cal)  
Model U2W Universal In-Line amplifiers (not equipped with shunt cal)  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
(+)Excitation supply: “+28 VDC”  
(-)Excitation supply: “GND”  
Signal type: “current”  
Signal reference: “single ended”  
Figure 12-5: “2-wire Current Amp w/Buffered Shunt Cal” Connection to High-Level Input  
Channel  
SC Series Instruction Manual page 103  
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12.2.7“2-wireCurrent”  
Amplifiers with Single-  
wire Shunt Cal  
Use the following wiring diagram when connecting an amplified transducer or in-line  
amplifier with a 2-wire current amplifier to a High-Level Input channel. Examples of  
such devices include  
•
•
•
•
transducers with the Option 2p internal amplifier (not equipped with shunt cal)  
transducers with the Option 2p,3d internal amplifier (single-wire shunt cal)  
transducers with the Option 2y internal amplifier (not equipped with shunt cal)  
transducers with the Option 2y,3d internal amplifier (single-wire shunt cal)  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
(+)Excitation supply: “+28 VDC”  
(-)Excitation supply: “GND”  
Signal type: “current”  
Signal reference: “single ended”  
Figure 12-6: “2-wire Current Amp w/Single-Wire Shunt Cal” Connection to High-Level Input Chan-  
nel  
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12.2.8 Low Voltage DC-DC  
LVDTs  
Use the following wiring diagram when connecting a low-voltage DC-DC LVDT to  
a High-Level Input channel. Examples of such devices include  
•
Models DLB, DLE and DLF DC-DC LVDTs  
The High-Level Input channel’s Configuration Jumpers must be set as follows for  
proper operation. See “Excitation and Signal Jumpers” on page 106.  
•
•
•
•
(+)Excitation supply: “+12 VDC”  
(-)Excitation supply: “GND”  
Signal type: “voltage”  
Signal reference: “single ended”  
Figure 12-7: “Low Voltage” DC-DC LVDT Connection to High-Level Input Channel  
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12.3 Excitation and Signal Jumpers  
12.3.1 Overview  
The High-Level Input channel has hardware jumpers which allows configuration of  
excitation supply voltages and signal inputs to match the wide variety of amplified  
pressure, load and DC-DC LVDT transducers.  
CAUTION  
“Wiring” on page 98 explains which jumpers settings are required for a particu-  
lar transducer type. Incorrect placement of the Excitation and Signal jumpers  
can damage both the transducer and the instrument.  
Failure to comply with these instructions may result in product damage.  
12.3.2 Setting Jumpers  
Step 1: Find the “Case Removal” section in Chapter 4 “Chassis Models” on page 25  
that matches the particular chassis model. Follow the directions and remove  
the rear panel.  
Step 2: Remove the channel board from the chassis.  
Step 3: Change the jumper settings according to the figure below.  
Step 4: Re-install the channel board and replace the rear panel.  
Figure 12-8: Excitation and Signal Jumper Locations on the High-Level Input Channel  
CAUTION  
There are two separate jumpers for the “signal type” whose settings must  
match.  
Failure to comply with these instructions may result in product damage.  
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12.4 Calibration Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu items is given in  
“Setup Menu Reference” on page 157.  
Step 1: Wire the transducer to the channel’s connector.  
See “Wiring” on page 98 for details.  
Step 2: Set the Excitation and Signal jumpers appropriate for the transducer,  
amplifier or DC-DC LVDT.  
See “Wiring” on page 98 and “Excitation and Signal Jumpers” on page 106.  
Step 3: Enter the CALIBRATION TYPE.  
There are two methods that can be used to calibrate the transducer to the  
Input Channel. Each has advantages and disadvantages as described in  
“CALIBRATION TYPE Menu Item” on page 113. It is important to know your  
application in order to select the appropriate calibration type.  
Step 4: Enter the CALIBRATION DATA.  
Otherwise, consult the Certificate of Calibration for the transducer when  
entering information in the CALIBRATION DATA sub-menu.  
Step 5: Perform the calibration.  
Using the CALIBRATE menu item starts the calibration process. You will be  
prompted to apply loads to the transducer as required.  
SC Series Instruction Manual page 107  
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12.5 Specifications  
TRANSDUCER INPUT  
Transducer types  
amplified with voltage or current output,  
(field selectable)  
(1)  
±15 VDC @ 40 mA max.  
+28 VDC @ 75 mA max.  
+12 VDC @ 40 mA max.  
(field selectable)  
Excitation Voltage  
Excitation Overcurrent Protection  
Transducer full-scale output  
yes  
±1, ±5, ±10 VDC  
4-20 mA (field selectable)  
Calibration Type  
shunt, or  
2-, 3- or 5- point known load  
A/D Converter  
Low-pass filter  
24-bit Sigma-Delta  
digital, 24-tap FIR  
Resolution and Frequency Response  
see “FREQ. RESPONSEMenu Item” on  
page 109  
INSTRUMENT-ONLY ACCURACY  
(Frequency Response setting<=16Hz; Linearity, repeat-  
ability & hysteresis)  
Known -Load Calibration  
±0.01% F.S.  
AUXILLIARY INPUTS  
Quantity  
2
Type  
momentary contact closure  
< 5ms  
Response Time  
Field-Selectable Functions  
tare on, tare off,  
peak/valley clear, peak/valley hold,  
track hold  
ANALOG OUTPUT  
Output voltage range  
5, ±5, 10 or ±10 VDC (field selectable)  
4-20 mA  
Output current range (optional current  
output channels)  
Source  
Isolation  
any channel’s track, peak or valley value  
500V  
Resolution  
13 bits  
Frequency Response  
same as input when driven by the same  
channel’s tracking data  
(1)  
Total excitation current of all channels must not exceed 120mA for Models SC1000,  
SC2000 or SC2001 and 310 mA for Model SC3004.  
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12.6 Channel Menu  
Each High-Level Input channel is configured and calibrated via its channel menu.  
Detailed instructions on operating the instrument in the SETUP Menu mode can  
be found in “SETUP Menu mode” on page 23. A diagram of all menus is located  
in “Setup Menu Reference” on page 157.  
12.6.1 OPERATION  
Sub-Menu  
This menu controls the operation of this channel when the instrument is in the  
RUN mode.  
AUTO-ZEROMenu Item  
This enables or disables the channel’s automatic zeroing function. The auto-zero  
function can remove the effect of slight temperature shifts in the transducer’s out-  
put. The two options for this menu item are “ON” and “OFF”.  
When enabled, the channel will reset its tracking value to zero when the tracking  
value has never been more positive than +10 or more negative than -10 display  
counts for any 10 second period.  
For example, assume that the DISPLAY.DECPT menu item is set to 000.00 (two deci-  
mal points). If the tracking value never leaves the range of -000.10 to +000.10 for  
any 10 second period, then tracking value will reset to 000.00 automatically.  
NOTICE  
To compensate for the transducer’s initial warm-up shift, the auto-zero function  
operates every 2 seconds during the first 60 seconds of RUN mode operation.  
FREQ. RESPONSEMenu Item  
This sets the frequency response, step response, and resolution of the channel  
according to the table below. The tracking value, peak/valley detector values and  
analog output on this channel are all affected. The default value of 016. HERTZ is  
suitable for most applications.  
Frequency  
Response  
Step Response  
(ms) (typical)  
Resolution (counts) (not including min.  
10% overrange/underrange capability)  
5V & 10V Inputs  
±50000  
±50000  
±25000  
±25000  
±20000  
±15000  
±10000  
±10000  
±4000  
1V & 4-20mA Inputs  
±50000  
±50000  
±25000  
±20000  
±10000  
±10000  
±5000  
002. HERTZ/FAST  
002. HERTZ  
008. HERTZ  
016. HERTZ  
032. HERTZ  
050. HERTZ  
100. HERTZ  
250. HERTZ  
500. HERTZ  
800. HERTZ  
40  
440  
110  
55  
28  
16  
8
3
±5000  
2
±2500  
2
±2500  
±2500  
POWER-ON SOURCE Menu Item  
This menu selects which value is displayed by the channel when first entering the  
RUN mode.  
The choices are:  
•
“TRACK” means the live tracking value of the channel.  
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•
•
•
“PEAK” means the highest value of the channel.  
“VALLEY” means the lowest value of the channel.  
“TRACK / PEAK” means the live tracking value and the highest value of the channel.  
(Only available on Model SC3004).  
•
•
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.  
(Only available on Model SC3004).  
“PEAK / VALLEY” means the highest and lowest values of the channel.  
(Only available on Model SC3004).  
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12.6.2 DISPLAY SETUP  
Sub-Menu  
This menu controls how data values are displayed by the channel and transmitted  
via serial communications.  
DISPLAY. DIGITSMenu Item  
Selects the number of digits displayed by the channel. The choices are:  
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-  
its (±99999).  
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and  
negative numbers with five full digits (-99999).  
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)  
and negative numbers with six digits (-999999).  
DISPLAY. DECPTMenu Item  
Selects the decimal point location on the channel’s display and serial communica-  
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the  
right and left.  
This menu item may be automatically updated by a transducer’s Signature Mod-  
ule.  
DISPLAY. COUNT-BYMenu Item  
Determines by what value the display increments or decrements. This will make  
the display less sensitive to a noisy signal. The choices are:  
•
•
•
•
•
•
•
•
“00001”  
“00002”  
“00005”  
“00010”  
“00020”  
“00050”  
“00100”  
“00200”  
DISPLAY. UNITSMenu Item  
Specifies the four character label that is displayed to the right of the channel’s val-  
ues.  
NOTICE  
This menu item doesn’t change the mathematical scaling of the channel’s val-  
ues; that can be changed by altering the “CALIBRATION DATA -> FULL SCALE VALUE”  
menu item and then performing a re-calibration.  
This menu item doesn’t change the mathematical scaling of the channel’s values;  
that can be changed by altering the “CALIBRATION DATA -> FULL SCALE VALUE” menu item  
and then performing a re-calibration.  
When a character position is flashing press the [UP] or [DOWN] button to change  
the character. Press [ENTER] to advance to the next character.  
DISPLAY. AVERAGEMenu Item  
Controls the speed with which the channel’s display values will update. Display  
averaging does not affect the channel’s analog output or its peak/valley detection,  
which will proceed at the speed selected by the ”OPERATION -> FREQ. RESPONSE” menu  
item. The choices are:  
•
“ON” means that the display will update four times each second. The channel’s  
values will be averaged for 1/4 second, then displayed.  
•
“OFF” means that the channel’s display will update as quickly as possible.  
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12.6.3 AUXn FUNCTION  
Menu Items  
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine what happens when the  
Auxiliary Function pins (labeled as “AUX1” and “AUX2”) on the channel’s connector  
are activated. These pins are “activated” when connected to the DGND pin. The  
choices are:  
•
•
•
•
•
•
“DISABLED” means that activating the pin does nothing.  
“TRACK HOLD” means that the tracking, peak and valley values will not be updated.  
“HIGH/LOW HOLD” means that the peak and valley values will not be updated.  
“HIGH/LOW CLEAR” means that the peak and valley values are reset.  
“TARE ON” activates the channel’s Tare function (resets it to zero) .  
“TARE OFF” deactivates the channel’s Tare function.  
As the Auxiliary Function pins are not isolated, it is recommended that a push-button  
switch or relay is used to connect these pins to the Digital Ground pin.  
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12.6.4 CALIBRATION TYPE  
Menu Item  
This chooses the type of calibration technique to be used. There are two methods  
that can be used to calibrate the transducer to the Input Channel. Each has  
advantages and disadvantages as described in the table below.  
Table 1-7: Comparison of Calibration Types  
2-, 3-, or 5-point  
Shunt Calibration  
Known Load  
Calibration  
RECOMMENDED...  
...for most applications  
no  
yes  
no  
...when frequently swapping  
transducers  
yes  
...when best possible accuracy  
required  
no  
yes  
PROS and CONS  
Relative accuracy  
good  
no  
best  
yes  
Requires actual, calibrated loads  
to be applied  
CALIBRATION TECHNIQUE  
Zero-scale point from...  
Full-scale point from...  
applied load  
applied load  
applied load  
transducer output  
when Shunt Cal pins  
connected  
Linearity correction from...  
N/A  
2-point: none  
3- or 5-point:  
applied load  
It is important to know your application in order to select the appropriate cali-  
bration type. When the best possible accuracy is required, Known-Load Calibra-  
tion is recommended. However, if known-loads are not available, Shunt  
Calibration may be used instead.  
The choices for this menu item are:  
•
“TYPE= SHUNT CAL” means Shunt Calibration. First, you are prompted to apply  
the load entered in the “ZERO SCALE VALUE” register. Next, the instrument inter-  
connects the Shunt Cal 1 and Shunt Cal 2 pins. This activates the trans-  
ducer’s or in-line amplifier’s shunt calibration circuit which causes a  
predictable apparent signal. The instrument then takes a reading and adjusts  
itself using the “SHUNT CAL VALUE” register.  
•
•
“TYPE= 2 POINT CAL” means 2-Point Known Load Calibration. You are prompted  
to apply the loads to the transducer that were entered in the “KNOWN POINT 1/2”  
and “KNOWN POINT 2/2” registers. This technique assumes that the transducer is  
linear, so the usual loads used are zero scale and full scale.  
“TYPE= 3 POINT CAL” means 3-Point Known Load Calibration. You are prompted  
to apply the loads to the transducer that were entered in the “KNOWN POINT 1/3”  
and “KNOWN POINT 2/3” and “KNOWN POINT 3/3” registers. This technique can be  
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used to compensate for the non-linearity in the transducer. The usual loads  
used are zero scale, half scale and full scale, but you are not restricted to  
these loads.  
•
“TYPE= 5 POINT CAL” means 5-Point Known Load Calibration. You are prompted  
to apply the loads to the transducer that were entered in the “KNOWN POINT 1/5”,  
“KNOWN POINT 2/5”, “KNOWN POINT 3/5”, “KNOWN POINT 4/5” and “KNOWN POINT 5/5” regis-  
ters. This technique can be used to compensate for the non-linearity in the  
transducer. The usual loads used are zero scale, one-quarter scale, half  
scale, three-quarters scale and full scale, but you are not restricted to these  
loads.  
The selection of the calibration type affects what menu items appear in the CALI-  
BRATION DATA sub-menu.  
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12.6.5 CALIBRATION DATA  
Sub-Menu  
This enters the values that will be used by the instrument when it calibrates itself  
to the transducer. The menu items that are displayed will change according to  
what the CALIBRATION TYPE is set for.  
FULL SCALE VOLTor  
FULL SCALE CURRMenu Item  
The nominal transducer/amplifier output when its full-scale load is applied to it, in  
volts or milliamps. This menu item is used by the instrument to set gain of its  
amplifier circuit. This value is normally found on the transducer’s Certificate of  
Calibration or amplifier’s Application Note.  
FULL SCALE VALUEMenu Item  
ZERO SCALE VALUEMenu Item  
SHUNT CAL VALUEMenu Item  
The transducer’s full-scale output in engineering units.  
It is available only with the Shunt Calibration type.  
The transducer’s zero-scale output in engineering units, which is usually zero.  
It is available only with the Shunt Calibration type.  
The shunt calibration value must be calculated by using information found on the  
transducer’s Certificate of Calibration and the following formula:  
Shunt-Calibration Output  
-------------------------------------------------------------  
SHUNT CAL VALUE =  
× Full-Scale Capacity  
Full-Scale Output  
The terms have the following meanings:  
•
Shunt-Calibration Output: The transducer’s output when its shunt calibration  
function is activated in Volts or milliamps. Sometimes called “Shunt Cal. Fac-  
tor”.  
•
•
Full-Scale Output: The transducer’s full-scale output in Volts or milliamps.  
Sometimes called “Calibration Factor”.  
Full-Scale Capacity: The transducer’s desired full-scale reading in engineering  
units (PSI, lbs, Kg, etc.). You may wish to convert the engineering units of this  
value. For example, if the transducer full scale is 3000 PSIG and you wish the  
channel to read in bar, you must convert 3000 PSIG into 206.84 bar.  
This menu item is only available with the Shunt Calibration type.  
To verify proper transducer/amplifier operation, you can activate the transducer’s/  
amplifier’s shunt calibration function while the instrument is in the RUN mode.  
Press and hold the [ENTER] button for three seconds; this will activate the trans-  
ducer’s/amplifier’s shunt calibration function and display the reading.  
KNOWN POINT x/yMenu Items  
This enters the engineering units for the known-load calibration points. These  
points must match the actual loads that you will apply to the instrument during cal-  
ibration. The number of calibrations points depends on the CALIBRATION TYPE.  
When using the 2-Point Known Load Calibration type, the following menu items  
are available:  
•
“KNOWN POINT 1/2”: point 1 of 2, usually 0% of the transducer’s full-scale capac-  
ity.  
•
“KNOWN POINT 2/2”: point 2 of 2, usually 100% of the transducer’s full-scale  
capacity.  
When using the 3-Point Known Load Calibration type, the following menu items  
are available:  
•
“KNOWN POINT 1/3”: point 1 of 3, usually 0% of the transducer’s full-scale capac-  
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ity.  
•
•
“KNOWN POINT 2/3”: point 2 of 3, usually 50% of the transducer’s full-scale capac-  
ity.  
“KNOWN POINT 3/3”: point 3 of 3, usually 100% of the transducer’s full-scale  
capacity.  
When using the 5-Point Known Load Calibration type, the following menu items  
are available:  
•
•
•
•
•
“KNOWN POINT 1/5”: point 1 of 5, usually 0% of the transducer’s full-scale capac-  
ity.  
“KNOWN POINT 2/5”: point 2 of 5, usually 25% of the transducer’s full-scale capac-  
ity.  
“KNOWN POINT 3/5”: point 3 of 5, usually 50% of the transducer’s full-scale capac-  
ity.  
“KNOWN POINT 4/5”: point 4 of 5, usually 75% of the transducer’s full-scale capac-  
ity.  
“KNOWN POINT 5/5”: point 5 of 5, usually 100% of the transducer’s full-scale  
capacity.  
NOTICE  
To insure both correct operation of the transducer and application of the load,  
the instrument expects the voltage or current applied at each known-load point  
to be increasing. For example, the load applied at Known-Load Point 2/2 must  
cause the transducer to produce a more positive voltage or current than at  
Known-Load Point 1/2.  
These menu items are only available with the Known-Load Calibration types.  
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12.6.6 CALIBRATEMenu  
Item  
This menu item performs a calibration according to what was entered in the CALI-  
BRATION TYPE and CALIBRATION DATA menu items.  
NOTICE  
Before performing a calibration,  
•
•
•
the transducer must be connected to the instrument,  
the channel’s Excitation and Signal Jumpers must be set,  
the CALIBRATION TYPE must be selected (see “CALIBRATION TYPEMenu Item”  
on page 113), and  
•
the CALIBRATION DATA must be entered (see “CALIBRATION DATASub-Menu”  
on page 115).  
NOTICE  
For maximum accuracy, allow at least twenty minutes of warm-up with the exci-  
tation voltage applied to the transducer before calibration.  
If the CALIBRATION TYPE is Shunt Calibration...  
•
The display will read DOING SHUNT CAL, and prompt you to APPLY 00000 UNIT(where  
00000 and UNIT are previously entered as ZERO SCALE VALUEand DISPLAY. UNITS.  
When you have applied this load to the transducer, press [ENTER].  
The display will then read WORKING and calibration will take place. Upon com-  
pletion, the display will indicate DONE and the instrument will return to the RUN  
mode.  
•
If the CALIBRATION TYPE is 2-Point Known Load Calibration...  
•
•
•
The display will read DOING 2POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/2and DISPLAY.  
UNITS). When you have applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 2/2 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
Upon completion, the display will indicate DONEand the instrument will return to  
the RUN mode.  
If the CALIBRATION TYPE is 3-Point Known Load Calibration...  
•
•
•
•
The display will read DOING 3POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/3and DISPLAY.  
UNITS). When you have applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are  
previously entered as KNOWN POINT 2/3 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 3/3 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
Upon completion, the display will indicate DONEand the instrument will return to  
the RUN mode.  
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If the CALIBRATION TYPE is 5-Point Known Load Calibration...  
•
•
•
•
•
•
The display will read DOING 5POINT CAL, and prompt you to APPLY 00000 UNIT  
(where 00000 and UNIT are previously entered as KNOWN POINT 1/5and DISPLAY.  
UNITS). When you have applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00250 UNIT(where 00250 and UNIT are  
previously entered as KNOWN POINT 2/5 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00500 UNIT(where 00500 and UNIT are  
previously entered as KNOWN POINT 3/5 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 00750 UNIT(where 00750 and UNIT are  
previously entered as KNOWN POINT 4/5 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
The display will read WORKING, then APPLY 01000 UNIT(where 01000 and UNIT are  
previously entered as KNOWN POINT 5/5 and DISPLAY. UNITS). When you have  
applied this load to the transducer, press [ENTER].  
The display will now read RETURN PNTS.=NO. If you press [ENTER], the display  
will indicate DONE and the instrument will return to the RUN mode. If you use  
the [UP] button and [ENTER] to select RETURN POINTS=YES, you may now apply  
the same loads again but in reverse order. This will allow the instrument to  
measure and partially eliminate any hysteresis that may be present in the  
transducer. After the loads have been applied again, the display will indicate  
DONE and the instrument will return to the RUN mode.  
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12.6.7 DAC SETUPSub-Menu  
This sub-menu contains four items that control the Digital-to-Analog Converter  
(DAC) output of the channel.  
DAC. CHANNELMenu Item  
This chooses which channel will drive the DAC output. Normally, the DAC located  
on a particular channel will be driven by that channel, but that need not be the  
case. For example, if several channels were assigned to load cells on a weighing  
platform, the sum of all channels could (mathematically) drive one channel’s DAC  
output.  
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog  
Output will have the frequency response specified by the channel’s FREQ. RESPONSE  
menu item. Otherwise, the Analog Output will operate more slowly.  
DAC. SOURCE Menu Item  
This designates the data source of the channel monitored by the analog output.  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak/valley detector  
was last cleared.  
•
“VALLEY” means the lowest value of the channel since the peak/valley detector  
was last cleared.  
If the DAC is set-up to be driven by its own channel’s tracking value, the Analog  
Output will have the frequency response specified by the channel’s FREQ. RESPONSE  
menu item. Otherwise, the Analog Output will operate more slowly.  
DAC. ZERO-SCALEMenu Item  
This specifies what value, in engineering units, corresponds to zero output on the  
Analog Output.  
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if  
the channel has a voltage or current output and how it is configured. See “Analog  
Output Configuration” on page 121 for details.  
DAC. FULL-SCALEMenu Item  
Specifies what value, in engineering units, corresponds to full output on the Ana-  
log Output.  
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has  
a voltage or current output and how it is configured. See “Analog Output Configu-  
ration” on page 121 for details.  
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12.6.8 DIAGNOSTICS  
Sub-Menu  
DAC FULL SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its  
full-scale output, then DAC UPDATED is displayed. This is useful when calibrating or  
trimming the readout connected to the Analog Output.  
DAC ZERO SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its  
zero-scale output, then DAC UPDATED is displayed. This is useful when calibrating or  
trimming the readout connected to the Analog Output.  
VERSION INFOMenu Item  
DISPLAY ADCMenu Item  
This menu item displays the part number and revision level of the firmware used  
by this channels microprocessor.  
The options for this menu item are:  
•
“OFF” will allow the [VALUE] button to cycle through “TK” (tracking value), “HI”  
(peak value) and “LO” (valley value). This is the recommended option.  
“ON” will allow the “AD” (percentage of the Analog-to-Digital converter’s full-  
scale digitizing capability) display source to be available along with “TK” (track-  
ing value), “HI” (peak value) and “LO” (valley value) when the [VALUE] button  
is pressed on the front panel.  
•
The Analog-to-Digital converter counts are displayed as a percentage from  
-100.00% to 100.00%.  
This can be used to verify that the transducer’s output does not exceed the input  
range of the instrument. If the Analog-to-Digital converter readings display more  
than +/-10% when there is no load on the transducer, the transducer has a high  
zero offset.  
LINEARIZATION Menu Item  
The options for this menu item are:  
•
“ON” will allow linearization data obtained from either the Signature Module or a  
3-Point or 5-Point Known Load Calibration to affect a channel’s scaled values.  
This is the recommended option.  
•
“OFF” will not allow linearization data to effect the channel’s scaled values. This  
is useful when diagnosing problems in a calibration procedure.  
DISABLE CHANNEL Menu Item  
The options for this menu item are:  
•
“ON” will bypass the INITIALIZE and RUN modes of the channel. The track,  
peak and valley values of the channel are forced to 0.  
“OFF” will allow normal operation of the channel.  
•
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12.7 Analog Output Configuration  
12.7.1 Identifying the  
Output Type  
A High-Level Input channel is available with one of two types of digital-to-analog  
(DAC) outputs: voltage or current. You can determine which type of output a  
channel has by one of three ways:  
•
•
Consulting the instrument’s Customer Information Sheet  
Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn TYPE menu item where  
nn is the number of the channel. If the channel’s type is HIGH-LEVEL V, it has a  
voltage output. If the channel’s type is HIGH-LEVEL I, it has a current output.  
Examining the channel’s circuit board as shown in the figure below.  
•
12.7.2 Channel Menu Items  
12.7.3 Output Selection  
The Analog Output can be driven by any channel’s track, peak or valley value.  
See the “Channel Menu” section earlier in this chapter for a complete listing of  
SETUP menu items available on the DAC. SETUP sub-menu.  
Jumpers located on the channel’s circuit board determine what outputs are gener-  
ated when the value selected to drive the Analog Output (from the DAC. CHANNEL and  
DAC. SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.  
Figure 12-9: Digital-to-Analog Output Jumper Locations  
DAC. ZERO SCALE  
DAC. FULL SCALE  
J30  
J31  
Output  
Output  
jumper  
jumper  
CHANNELS WITH VOLTAGE OUPUT  
0-5V  
±5V  
2.5 Volts  
0 Volts  
5 Volts  
0 Volts  
5 Volts  
5 Volts  
open  
open  
closed  
open  
0-10V  
±10V  
10 Volts  
10 Volts  
closed  
closed  
closed  
open  
CHANNELS WITH CURRENT OUTPUT  
4-20mA  
4-20mA  
4 mA  
20 mA  
20 mA  
open  
open  
open  
12 mA  
closed  
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12.8 Troubleshooting  
12.8.1 Error Messages  
See “Error Messages” on page 151 for information relating to error messages.  
12.8.2 Common Problems  
and Solutions  
Erratic Display  
Check electrical connections for continuity and the transducer’s and/or amplifier’s  
wiring code from its Certificate of Calibration and Application Note.  
Incorrect wiring may have shorted the excitation power supply. Use the correct  
wiring diagram to connect the transducer or amplifier to the instrument.  
Make sure that the load on the transducer is constant.  
Check input voltage or current to the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins  
with a multi-meter.  
Blank Display  
Incorrect wiring may have shorted the ±15 VDC excitation power supply. Use the  
correct wiring diagram to connect the transducer or amplifier to the instrument.  
+OVLD or -OVLD on Display  
Indicates that the voltage across the (+)Signal (“+SIG”) and (-)Signal (“-SIG”) pins  
is overranging or underranging the amplifier circuit. Make certain all wires are  
connected properly.  
If you remove all load from the transducer and you still see this message, the  
(+)Excitation (“+EXC”) or (-)Excitation (“-EXC”) pins may be shorted to the (+)Sig-  
nal (“+SIG”) or (-)Signal (“-SIG”) pins.  
If you remove all load from the transducer and you get a numeric reading, the  
transducer may have a high zero offset. Use the channel’s SETUP menu and set  
DIAGNOSTICS -> DISPLAY ADC to “ON”; in the RUN mode this will allow the [VALUE] but-  
ton to display raw A/D readings as a percentage of its full-scale. If the raw A/D  
readings display more than +/-10% when there is no load on the transducer, the  
transducer has a high zero offset.  
Analog Output Incorrect  
Make certain of the type of Analog Output (voltage or current) that the channel is  
equipped with; see “Identifying the Output Type” on page 121.  
Use the DIAGNOSTICS-> DAC FULL SCALEand DIAGNOSTICS -> DAC ZERO SCALE menu items to  
force the Analog Output to a known output. Then, adjust your readout device,  
panel meter, PLC or data acquisition system to match.  
Check the output selection jumpers; see “Output Selection” on page 121.  
Auxiliary Function Pins Not  
Operating  
Make sure that the AUX1 FUNCTION or AUX2 FUNCTION SETUP menu items are set cor-  
rectly; if they are set to DISABLED then they will not operate.  
The Auxiliary Function (“AUX1” and “AUX2”) pins must be connected to pin 10,  
not pin 8, to activate them.  
Sensitivity to EMI/RFI  
To obtain maximum immunity to electromagnetic or radio frequency interference,  
make certain that the shields of the transducer cables are connected to the “cable  
shield connection screw” on the rear panel of the instrument. See “Wiring” on  
page 98, “External Arrangement of AC powered SC1000 and SC2000” on  
page 27 and “External Arrangement of Model SC3004” on page 33.  
page 122  
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Chapter 13  
Relay Output Channel  
13.1 Features  
13.1.1 First Channel  
Installed  
The first Relay Output channel installed in an instrument supplements the stan-  
dard four limits (Limit 1, Limit 2, Limit 3 and Limit 4) . Its four, dry contact relay out-  
puts will mirror the Limit Outputs pins of the System connector.  
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT  
01-04.  
13.1.2 Second Channel  
Installed  
The second Relay Output channel installed in an instrument adds another four  
limits to the instrument (Limit 5, Limit 6, Limit 7 and Limit 8). Its relay outputs  
show the status of these limits.  
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT  
05-08.  
13.1.3 Third Channel  
Installed  
The third Relay Output channel installed in an instrument adds another four limits  
to the instrument (Limit 9, Limit 10, Limit 11 and Limit 12). Its relay outputs show  
the status of these limits.  
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT  
09-12.  
13.1.4 Fourth Channel  
Installed  
The fourth Relay Output channel installed in an instrument adds another four lim-  
its to the instrument (Limit 13, Limit 14, Limit 15 and Limit 16). Its relay outputs  
show the status of these limits.  
In the SYSTEM -> CONFIGURATIONsub-menu, channels of this type are identified as LIMIT  
13-16.  
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13.2 Wiring  
The pin-out for the Relay Output channel’s 12-pin connector is shown in the following  
table.  
Table 2-8: Relay Output Channel Pin Connections  
Pin  
Label  
Function  
Reference Pin  
1 (top)  
RELAY1 NC  
RELAY1 C  
Relay 1 normally closed  
Relay 1 common  
2
-
2
3
RELAY1 NO  
RELAY2 NC  
RELAY2 C  
Relay 1 normally open  
Relay 2 normally closed  
Relay 2 common  
2
5
-
4
5
6
RELAY2 NO  
RELAY3 NC  
RELAY3 C  
Relay 2 normally open  
Relay 3 normally closed  
Relay 3 common  
5
8
-
7
8
9
RELAY3 NO  
RELAY4 NC  
RELAY4 C  
Relay 3 normally open  
Relay 4 normally closed  
Relay 4 common  
8
11  
-
10  
11  
12 (bottom)  
RELAY4 NO  
Relay 4 normally open  
11  
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13.3 Setup Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu item is given in “Setup  
Menu Reference” on page 157.  
Step 1: Wire to the channel’s connector.  
See the “Wiring” section earlier in this chapter for details.  
Step 2: Use the appropriate Limit Menu to setup the limits.  
See “Limits” on page 53 for information about limits.  
NOTICE  
A SensoCode program running on a Mathematics Virtual Channel may over-  
ride the default behavior of the relay outputs. Consult the Customer Information  
Sheet included with your instrument for details.  
SC Series Instruction Manual page 125  
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13.4 Specifications  
RELAY OUTPUT  
Quantity and Type  
Contact Rating  
4 form C  
0.5A @ 50VAC max. (consult factory for  
125VAC max. operation)  
1A @ 30VDC max.  
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13.5 Channel Menu  
The Relay Output channel’s SETUP menu allows you to manually turn the relays  
on and off to verify that they are functioning. To change the operation of the limits,  
see “Limit Menus” on page 55.  
Detailed instructions on operating the instrument in the SETUP Menu mode can  
be found in “SETUP Menu mode” on page 23. A diagram of all menus is located  
in “Setup Menu Reference” on page 157.  
13.5.1 DIAGNOSTICS  
Sub-Menu  
RELAY 1Menu Item  
RELAY 2Menu Item  
RELAY 3Menu Item  
RELAY 4Menu Item  
The options for this menu item are:  
•
•
“ON” will turn the relay on.  
“OFF” will turn the relay off.  
The options for this menu item are:  
•
•
“ON” will turn the relay on.  
“OFF” will turn the relay off.  
The options for this menu item are:  
•
•
“ON” will turn the relay on.  
“OFF” will turn the relay off.  
The options for this menu item are:  
•
•
“ON” will turn the relay on.  
“OFF” will turn the relay off.  
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Chapter 14  
DAC Output Channel  
14.1 Features  
The DAC Output channel uses a digital-to-analog converter to generate a voltage  
or current from any channel’s track, peak or valley value. This type of channel is  
often used to provide a Mathematics Virtual channel with an analog output.  
SC Series Instruction Manual page 129  
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14.2 Wiring  
Connect your readout instrument to a DAC Output channel by wiring it to the 12-pin  
connector of that channel. The Customer Information Sheet that shipped with the  
instrument describes which cards are installed in each channel. The pin-out for this  
connector is shown on the following table.  
Table 3-9: DAC Output Channel Pin Connections  
Pin  
Label  
Function  
Reference Pin  
1 (top)  
N/C  
N/C  
No connection  
No connection  
No connection  
No connection  
No connection  
No connection  
Analog Output  
Analog Return  
No connection  
No connection  
No connection  
No connection  
2
3
N/C  
4
N/C  
5
N/C  
6
N/C  
7
+OUT  
-OUT  
N/C  
8
-
8
9
10  
11  
N/C  
N/C  
12  
(bottom)  
N/C  
The Analog Output and Analog Return pins are electrically isolated from all other pins  
on the instrument.  
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14.3 Setup Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu items is given in  
“Setup Menu Reference” on page 157.  
Step 1: Determine if you have a Voltage DAC Output channel or a Current DAC  
Output channel.  
Check the instrument’s Customer Information Sheet, or see “Identifying the  
Output Type” on page 135.  
Step 2: Wire the readout instrument to the channel’s connector.  
See the “Wiring” section earlier in this chapter for details.  
Step 3: Select the value (channel and source) used to drive the Analog Output  
See the “Channel Menu” on page 133 for details.  
Step 4: Select the full-scale and zero-scale settings used to drive the Analog Out-  
put.  
See the “Channel Menu” on page 133 for details.  
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14.4 Specifications  
ANALOG OUTPUT  
Voltage range (voltage output  
channels)  
5, ±5 or 10 VDC  
4-20 mA  
Current range (current output  
channels)  
Source  
Isolation  
any channel’s track, peak or valley value  
500V  
Resolution  
Update Rate  
12 bits  
depends on how many channels are  
installed in the instrument  
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14.5 Channel Menu  
Each DAC Output channel is configured and calibrated via its channel menu.  
Detailed instructions on operating the instrument in the SETUP Menu mode can  
be found in “SETUP Menu mode” on page 23. A diagram of all menus is located  
in “Setup Menu Reference” on page 157.  
14.5.1 DAC SETUPSub-Menu  
This sub-menu contains four items that controls the analog output of the channel.  
DAC. CHANNELMenu Item  
This chooses which channel will drive the Digital-to-Analog Converter (DAC) out-  
put.  
DAC. SOURCE Menu Item  
This designates the data source of the channel monitored by the analog output.  
Each channel has three data sources: the live tracking value (TRACK), its highest  
value (PEAK), and its lowest value (VALLEY).  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak/valley detector  
was last cleared.  
•
“VALLEY” means the lowest value of the channel since the peak/valley detector  
was last cleared.  
DAC. ZERO-SCALEMenu Item  
This specifies what value, in engineering units, corresponds to zero output on the  
Analog Output.  
“Zero output” might be 0 Volts, 2.5 Volts, 5 Volts, 4 mA or 12 mA depending on if  
the channel has a voltage or current output and how it is configured. See the  
“Digital-to-Analog Output” section of this chapter for details.  
This menu item is not automatically updated by another channel’s Signature Mod-  
ule equipped transducer.  
DAC. FULL-SCALEMenu Item  
This specifies what value, in engineering units, corresponds to full output on the  
Analog Output.  
“Full output” might be 5 Volts, 10 Volts or 20 mA depending on if the channel has  
a voltage or current output and how it is configured. See the “Digital-to-Analog  
Output” section of this chapter for details.  
This menu item is not automatically updated by another channel’s Signature Mod-  
ule equipped transducer.  
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14.5.2 DIAGNOSTICS  
Sub-Menu  
DAC FULL SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its full-  
scale output, then DAC UPDATED is displayed. This is useful when calibrating or trimming  
the readout connected to the Analog Output.  
DAC ZERO SCALEMenu Item  
When this menu item is selected, the Analog Output of the channel is forced to its  
zero-scale output, then DAC UPDATEDis displayed. This is useful when calibrating or trim-  
ming the readout connected to the Analog Output.  
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14.6 Analog Output Configuration  
14.6.1 Identifying the  
Output Type  
A DAC Output channel is available with one of two types of digital-to-analog  
(DAC) outputs: voltage or current. You can determine which type of output a  
channel has by one of three ways:  
•
•
Consulting the instrument’s Customer Information Sheet  
Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn TYPE menu item where  
nn is the number of the channel. If the channel’s type is VOLTAGE DAC, it has a  
voltage output. If the channel’s type is CURRENT DAC, it has a current output.  
Examining the channel’s circuit board as shown in the figure below.  
•
14.6.2 Channel Menu Items  
14.6.3 Output Selection  
The Analog Output can be driven by any channel’s track, peak or valley value.  
See the “Channel Menu” section earlier in this chapter for a complete listing of  
SETUP menu items available on the DAC. SETUP sub-menu.  
Jumpers located on the channel’s circuit board determine what outputs are gener-  
ated when the value selected to drive the Analog Output (from the DAC. CHANNEL and  
DAC. SOURCE menu items) equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.  
Figure 14-1: Digital-to-Analog Output Jumper Locations  
DAC. ZERO SCALE  
DAC. FULL SCALE  
P31  
J11  
Output  
Output  
jumper  
jumper  
CHANNELS WITH VOLTAGE OUPUT  
0-5V  
0-5V  
±5V  
2.5 Volts  
0 Volts  
0 Volts  
5 Volts  
0 Volts  
5 Volts  
5 Volts  
5 Volts  
10 Volts  
10 Volts  
bottom  
bottom  
top  
open  
closed  
open  
0-10V  
0-10V  
middle  
middle  
open  
closed  
CHANNELS WITH CURRENT OUTPUT  
4-20mA  
4-20mA  
4 mA  
20 mA  
20 mA  
bottom  
bottom  
closed  
open  
12 mA  
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14.7 Troubleshooting  
14.7.1 Error Messages  
See “Error Messages” on page 151 for information relating to error messages.  
14.7.2 Common  
Problems and Solutions  
Analog Output Incorrect  
Make certain of the type of Analog Output (voltage or current) that the channel is  
equipped with; see “Identifying the Output Type” on page 135.  
Use the DIAGNOSTICS -> DAC FULL SCALE and DIAGNOSTICS -> DAC ZERO SCALE menu items to  
force the Analog Output to a known output. Then, adjust your readout device, panel  
meter, PLC or data acquisition system to match.  
Check the output selection jumpers; see “Output Selection” on page 135.  
Check the “DAC SETUP -> DAC. ZERO-SCALE” and “DAC SETUP -> DAC FULL-SCALE” menu items.  
Sensitivity to EMI/RFI  
To obtain maximum immunity to electromagnetic or radio frequency interference,  
make certain that the shield of the cable is connected to ground/earth only at the read-  
out device. The shield of the cable should not be connected to the instrument.  
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Chapter 15  
Split Display Virtual Channel  
15.1 Features  
The Split Display Virtual Channel allows the display of two track, peak or valley  
values from any two channels at the same time. One value is displayed on the left  
side of the display, and another value is displayed on the right side.  
The display setup used to format each value is inherited from the source channel  
of the value.  
Split Displays are most useful on chassis with a 16-character display such as the  
Models SC1000, SC2000 and SC2001. The quad-line, 20-character display of  
the Model SC3004, however, already allows an Input Channel to show its own  
Track & Peak, Track & Valley or Peak & Valley values on the display at the same  
time. Thus, a Split Display Virtual Channel is not generally used on an Model  
SC3004.  
15.2 Wiring  
A Virtual Channel exists in software only; it does not occupy a physical slot inside  
of the instrument’s chassis. However, a Virtual Channel does require a channel  
number.  
There is no rear-panel connector for a Virtual Channel.  
15.3 Setup Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu item is given in “Setup  
Menu Reference” on page 157.  
Step 1: Enter the value to be displayed on the left side with LEFT CHANNEL and LEFT  
SOURCE.  
Step 2: Enter the value to be displayed on the right side with RIGHT CHANNEL and  
RIGHT SOURCE.  
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15.4 Channel Menu  
Detailed instructions on operating the instrument in the SETUP Menu mode can be  
found in “SETUP Menu mode” on page 23. A diagram of all menus is located in  
“Setup Menu Reference” on page 157.  
LEFT CHANNELMenu Item  
LEFT SOURCE Menu Item  
This specifies the channel that is displayed on the left half of the split display.  
This lets you designate the data source of the channel monitored by the left half of the  
split display. Each channel has three data sources: the live tracking value (TRACK),  
its highest value (PEAK), and its lowest value (VALLEY).  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak detector was last  
cleared.  
•
“VALLEY” means the lowest value of the channel since the valley detector was last  
cleared.  
RIGHT CHANNELMenu Item  
RIGHT SOURCEMenu Item  
This specifies the channel that is displayed on the right half of the split display.  
This lets you designate the data source of the channel monitored by the right half of  
the split display. Each channel has three data sources: the live tracking value  
(TRACK), its highest value (PEAK), and its lowest value (VALLEY).  
The options for this menu item are:  
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel since the peak detector was last  
cleared.  
•
“VALLEY” means the lowest value of the channel since the valley detector was last  
cleared.  
LEAVE MENUMenu Item  
When the menu item is displayed, press [ENTER] to leave this menu. Press [EXIT] to  
return to the RUN mode.  
15.5 Troubleshooting  
Front Panel Buttons not  
Operating in RUN Mode  
When a Split Display Virtual channel is displayed the [VALUE], [CLEAR] and [TARE]  
buttons have no effect. To change one of the values shown on a Split Display Virtual  
channel, use the its SETUP menu. To clear peak/valley values or tare an Input chan-  
nel, use the [CHANNEL] button to select an Input channel and then use the [CLEAR]  
or [TARE] buttons.  
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Chapter 16  
Mathematics Virtual Channel  
16.1 Features  
The Mathematics Virtual Channel is a powerful, flexible means to allow SC Series  
Instruments to perform simple to moderate functions that previously required the  
use of expensive programmable logic controllers (PLC).  
A Mathematics Virtual Channel is akin to a PLC; it can execute programs written  
in an interpretive language called SensoCode. At the time of order, your specific  
application is analyzed by our sales and engineering staff and one or more Senso-  
Code programs are created. These SensoCode programs are loaded into the  
Mathematics Virtual channels of the instrument at the factory. The end result is an  
instrument that meets your specific needs but is built with “off-the-shelf” hardware  
and software.  
SensoCode programs allow the instrument to perform a variety of functions  
including:  
•
•
•
•
Mathematics: addition, subtraction, multiplication, division, square roots, etc.  
Logical: if/then condition statements, comparison of values  
Timing  
Input: from any channel’s track, peak or valley values, open-collector inputs,  
constant user-entered values from the SETUP menu  
Output: Each Mathematics Channel generates its own track, peak, and valley  
values. A SensoCode program can “take control” of the Limit Output and/or  
front panel indicator lights.  
•
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16.2 Wiring  
A Virtual Channel exists in software only; it does not occupy a physical slot inside of  
the instrument’s chassis. However, a Virtual Channel does require a channel number.  
A SensoCode program that is executed by a Mathematics Virtual Channel can use the  
System connector’s Limit Output pins and Function Input pins for its own purposes.  
Consult the Customer Information Sheet and Supplemental Instructions included with  
the particular instrument for details.  
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16.3 Setup Procedure  
If you are not familiar with operating the instrument in the SETUP menu mode,  
see “SETUP Menu mode” on page 23. A listing of all menu item is given in “Setup  
Menu Reference” on page 157.  
Step 1: Examine the Supplemental Instructions.  
Supplemental Instructions contain important information about what each  
Mathematics Channel does and what Function Inputs and/or Limit Output  
pins of the System connector are used.  
Step 2: Wire to the pins on the System connector.  
See “System Connector” on page 35. It is important to read the Supple-  
mental Instructions to determine the wiring for your application.  
Step 3: Verify operation.  
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16.4 Channel Menu  
Each Mathematics Virtual Channel can have its configuration and SensoCode pro-  
gramming examined via its channel menu. It is not possible to alter the SensoCode  
program with the SETUP menu. Detailed instructions on operating the instrument in  
the SETUP Menu mode can be found in “SETUP Menu mode” on page 23. A diagram  
of all menus is located in “Setup Menu Reference” on page 157.  
16.4.1 SENSOCODE P/N  
Menu Item  
This menu item displays the part number and revision level of the SensoCode pro-  
gram loaded in this Mathematics Virtual Channel.  
16.4.2 USER VALUES  
Sub-Menu  
This sub-menu contains menu items for each of the User Values. User Values are  
constant numeric values that can be edited by the user and read by a SensoCode pro-  
gram. The use of each User Value depends on the SensoCode program loaded in the  
Mathematics Virtual Channel.  
By default, the four items on this menu are USER VALUE 1, USER VALUE 2, USER VALUE 3 and  
USER VALUE 4. However, a SensoCode program can alter the menu item text for each of  
the User Values to make them more relevant to the operator. For example, USER VALUE  
1
might be re-titled JELLY BEAN COUNT  
.
16.4.3 VIEW SENSOCODE  
Menu Item  
This menu item allows the display of each “step” (either an operand or an instruction)  
of the SensoCode program presently loaded into a Mathematics Virtual Channel.  
Pressing [ENTER] will display the next step of the SensoCode program until the entire  
program has been viewed.  
SensoCode programs cannot be altered with the SETUP Mode menu; they can only  
be loaded via the serial port with the Instrument Utility Software.  
16.4.4 VIEW COMMANDS  
Sub-Menu  
This sub-menu contains menu items for each of the Command Strings that can be  
used by a SensoCode program. Command Strings are text constants that can be  
read by a SensoCode program. They are not able to be changed with the SETUP  
menu. The use of each Command String depends on the SensoCode program  
loaded in the Mathematics Virtual Channel.  
The items on this menu are COMMAND 0, COMMAND 1, COMMAND 2, COMMAND 3, COMMAND 4, COMMAND 5,  
COMMAND 6, and COMMAND 7.  
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16.4.5 DISPLAY SETUP  
Sub-Menu  
This menu controls how data values are displayed by the channel and transmitted  
via serial communications.  
DISPLAY. DIGITSMenu Item  
Selects the number of digits displayed by the channel. The choices are:  
•
•
•
“5 DIGIT-BIPOLAR” displays both positive and negative numbers with five full dig-  
its (±99999).  
“6 DIGIT-UNIPLOAR” displays positive numbers with six full digits (999999) and  
negative numbers with five full digits (-99999).  
“7 DIGIT UNIPOLAR” displays positive number with seven full digits (9999999)  
and negative numbers with six digits (-999999).  
DISPLAY. DECPTMenu Item  
Selects the decimal point location on the channel’s display and serial communica-  
tions output. Use the [UP] and [DOWN] buttons to move the decimal point to the  
right and left.  
DISPLAY. COUNT-BYMenu Item  
Determines by what value the display increments or decrements. This will make  
the display less sensitive to a noisy signal. The choices are:  
•
•
•
•
•
•
•
•
“00001”  
“00002”  
“00005”  
“00010”  
“00020”  
“00050”  
“00100”  
“00200”  
DISPLAY. UNITSMenu Item  
Specifies the four character label that is displayed to the right of the channel’s val-  
ues. This menu item doesn’t change the mathematical scaling of the channel’s  
values; that is determined by the “CALIBRATION DATA -> FULL SCALE VALUE” menu item.  
When a character position is flashing press the [UP] or [DOWN] button to change  
the character. Press [ENTER] to advance to the next character.  
DISPLAY. AVERAGEMenu Item  
Controls the speed with which the channel’s display values will update. The  
choices are:  
•
“ON” means that the display will update four times each second. The channel’s  
values will be averaged for 1/4 second, then displayed.  
•
“OFF” means that the channel’s display will update as quickly as possible.  
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16.4.6POWER-ONSOURCE  
Menu Item  
This menu selects which value is displayed by the channel when first entering the  
RUN mode.  
For single-line displays, the choices are:  
•
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel.  
“VALLEY” means the lowest value of the channel.  
For multi-line displays, the choices are:  
•
•
•
•
•
•
“TRACK” means the live tracking value of the channel.  
“PEAK” means the highest value of the channel.  
“VALLEY” means the lowest value of the channel.  
“TRACK / PEAK” means the live tracking value and the highest value of the channel.  
“TRACK / VALLEY” means the live tracking value and the lowest value of the channel.  
“PEAK / VALLEY” means the highest and lowest values of the channel.  
page 148  
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16.5 Troubleshooting  
See “Error Messages” on page 151 for information relating to error messages.  
NOTICE  
Supplemental Instructions included with the instrument may contain important  
information about which indicator lights, Function Input pins and/or Limit Output  
pins of the System connector are used by the Mathematics Virtual channel.  
SC Series Instruction Manual page 149  
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page 150  
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Chapter 17  
Error Messages  
17.1 Overview  
If the instrument detects an error during the RUN, INITIALIZE, or SETUP modes,  
it stops operation and enters its ERROR mode as described in “Operating Modes”  
on page 19.  
The most frequent causes of error messages are:  
•
•
Wiring/electrical connection problems  
Misplaced address jumpers when installing or removing channel circuit  
boards  
•
•
Swapping channel circuit boards between instruments  
Incorrect calibration of the transducer to the instrument  
SC Series Instruction Manual page 151  
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17.2 Error Message List  
Error 05, DIVIDE BY ZERO  
Error 07, SQUARE ROOT  
A Mathematics Virtual channel has attempted to divide by zero.  
A Mathematics Virtual channel has attempted to take the square root of a negative  
number.  
Error 09, LOG/LN  
A Mathematics Virtual channel has attempted to take the logarithm of either zero or a  
negative number.  
Error 16, +15V SUPPLY HIGH  
Error 17, +15V SUPPLY LOW  
The internal +15 VDC power supply is generating a voltage that is too high.  
The internal +15 VDC power supply is generating a voltage that is too low. Check the  
wiring between the instrument and the transducer or amplifier.  
Error 18, -15V SUPPLY HIGH  
Error 19, -15V SUPPLY LOW  
Error 20, CHANNEL >MAXCH  
The internal -15 VDC power supply is generating a voltage that is too high (more pos-  
itive). Check the wiring between the instrument and the transducer or amplifier.  
The internal -15 VDC power supply is generating a voltage that is too low (more nega-  
tive).  
An invalid channel number has been encountered by the instrument. Restart the  
instrument. If this error persists, contact our Service department with the information  
found in the SYSTEM MENU -> SOFTWARE REV. menu item.  
Error 21, BLOWN STACK  
The instrument’s software stack has overflowed. Restart the instrument. If this error  
persists, contact our Service department with the information found in the SYSTEM MENU  
-
>
SOFTWARE REV. menu item.  
Error 22, TYPE NOT FOUND  
Error 23, CAN'T RENDER FS  
Error 24, SIG.MOD CRC ROM  
The instrument has not been programmed to understand the type of channel. Contact  
our Service department with the information found in the SYSTEM MENU -> SOFTWARE REV.  
menu item.  
The full-scale value of the transducer cannot be rendered on the display with the  
selected DISPLAY SETUPmenu settings. Change the DISPLAY SETUP menu settings to better  
match the transducer’s capacity.  
A checksum error occurred while reading a Signature Module’s read-only-memory.  
Check the wiring and restart the instrument. This error may occur with very long cable  
lengths.  
Error 25, SIG.MOD CRC READ  
Error 26, NO SIG.MOD.  
A checksum failure occurred reading data from a Signature Module. Check the wiring.  
This error may be caused by a faulty Signature Module.  
No Signature Module was detected during UPDATE SIG.MOD. or DEFAULT SIG.MOD. Check  
wiring.  
Error 27, S.EE WRITE NAK  
The channel’s EEPROM could not be detected during a write operation. Check that  
the channel’s address jumpers are set properly so that each card has an unique  
address.  
Error 28, S.EE READ NAK  
The channel’s EEPROM could not be detected during a read operation. Check that  
the channel’s address jumpers are set properly.  
page 152  
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Error 29, S.EE VERIFY FAIL  
Error 30, S.EE ERASE NAK  
Error 31, BLANK IDENT  
A verification failure occurred during a write operation to the channel’s EEPROM.  
Restart the instrument.  
The channel’s EEPROM could not be detected during an erase operation. Check  
that the channel’s address jumpers are set properly.  
The channel does not appear to have been installed properly. This occurs if you  
swap Input or Output boards without using SYSTEM MENU -> INSTALL CHANNEL to format  
the channel’s EEPROM.  
Error 32, BOGUS EE ADDR  
An invalid address has been passed to the programmer. Restart the instrument. If  
this problem persists, contact our Service department with the information found  
in the SYSTEM MENU -> SOFTWARE REV. menu item.  
Error 33, SIG.MOD WIRES  
Error 34, SIG.MOD MISMATCH  
Error 35, BOGUS MENU TYPE  
Error 36, BAD EE TABLE  
The instrument has detected that the (+)Signature and (-)Signature pins (labeled  
as “+MEM” and “-MEM) are likely reversed.  
The excitation type byte found inside a Signature Module indicates that the chan-  
nel is not designed to operate with that type of transducer.  
A menu contains an invalid menu type. Contact Sensotec with the information  
found in the SYSTEM MENU -> SOFTWARE REV. menu item.  
The instrument doesn’t understand the EEPROM type setting for the channel.  
Contact Sensotec with the information found in the SYSTEM MENU -> SOFTWARE REV.  
menu item.  
Error 37, BAD PERSONALITY  
Error 38, BAD FORMAT  
The channel doesn’t understand the given card type. Contact Sensotec with the  
information found in the SYSTEM MENU -> SOFTWARE REV. menu item.  
The channel’s EEPROM memory contains a display setting which is not under-  
stood by the instrument. Check that every item in the channel’s DISPLAY SETUP  
menu has a valid setting.  
Error 39, WRONG HARDWARE  
Error 41, SHUNT CAL ERROR  
The channel type expected by the instrument for the channel number is not the  
channel type that is physically installed. If you have changed the address jumpers  
on one or more channels, replace them in their original configuration.  
The application of the shunt resistor did not affect the transducer’s output. Check  
the wiring and the transducer output with a voltmeter to verify proper operation.  
If this is a Strain Gage Channel, make certain that the shunt calibration resistor  
installed on the circuit board is the correct value per the transducer’s Calibration  
Record.  
If this is a High-Level Input Channel, make certain that the Shunt Cal 1 and Shunt  
Cal 2 pins are connected to the correct pins of the transducer/amplifier.  
Error 43, BAD IDENT CRC  
Error 44, BAD FUNCTION  
Error 45, A/D NAK  
A checksum failure has occurred when reading a channel’s EEPROM. Restart  
the instrument.  
The instrument has requested that the channel perform a function that it is not  
capable of. Restart the instrument.  
Hardware error. The channel’s Analog-to-Digital converter is not communicating  
with the channel’s microprocessor. Restart the instrument.  
Error 46, SENSE WIRES  
The Strain Gage Channel’s (+)Sense and (-)Sense pins (labeled as “+SEN” and “-  
SC Series Instruction Manual page 153  
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SEN”) are not connected to the (+)Excitation and (-)Excitation pins (labeled as “+EXC”  
and “-EXC”), respectively,  
unplugged from the channel.  
This is most likely caused by the connector being  
If you are not interested in the using this channel and you wish to suppress this error,  
see “DISABLE CHANNEL Menu Item” on page 75.  
Error 47, BAD EE TYPE REQ  
When installing a channel, the EEPROM type requested by the channel is not valid.  
Contact Sensotec with the information found in the SYSTEM MENU -> SOFTWARE REV. menu  
item.  
Error 48, NULL MENU  
A menu contains a NULL item. Contact our Service department with the information  
found in the SYSTEM MENU -> SOFTWARE REV. menu item.  
Error 49, NULL ACTION FCN  
Error 50, EXCITATION  
A menu contains a NULL action function. Contact our Service department with the  
information found in the SYSTEM MENU -> SOFTWARE REV. menu item.  
The channel’s excitation voltage regulator has shut down because the protection cir-  
cuit that limits the output current has activated. This is most likely caused by a short of  
the (+)Excitation and (-)Excitation pins (labeled as “+EXC” and “-EXC”).  
Error 51, CAN'T DO EXC.  
The channel’s EEPROM memory contains an excitation setting which is not under-  
stood by the instrument. Change the channel’s CALIBRATION DATA -> EXCITATION menu  
item to another setting.  
Error 52, SIG.MOD LENGTH R  
Error 53, SIG.MOD RECTYPE  
Error 54, SIG.MOD LENGTH W  
Error 55, SIG.MOD VERIFY SP  
Error 56, SIG.MOD VERIFY  
Error 57, WRONG SIG.MOD.  
An unexpected length byte was found inside a Signature Module during a read opera-  
tion. Check the wiring.  
An unexpected record type was found inside a Signature Module during a read opera-  
tion. Check the wiring.  
An unexpected record type was found inside a Signature Module during a write opera-  
tion. Check the wiring and re-start the instrument.  
A data verification error occurred during a write operation to a Signature Module’s  
scratchpad. Check the wiring and re-start the instrument.  
A data verification error occurred during a write operation to a Signature Module.  
Check the wiring and re-start the instrument.  
You have attempted to perform an UPDATE SIG.MOD. operation with a different Signature  
Module than what was connected when the instrument was powered up. Re-connect  
the original transducer/Signature Module and restart the instrument.  
Another cause of this error is described in the description for Error 68 below.  
Error 58, WRONG EE VERSION  
The channel’s EEPROM memory data is not able to be used by this version of firm-  
ware. Make certain that you have not accidentally swapped channel circuit boards  
between instruments. If you are certain that you want to use the channel circuit board  
with this instrument, you may reset the channel’s EEPROM memory data to factory  
defaults with the SYSTEM MENU -> DEFAULT CHANNEL menu item.  
Error 59, CAN’T DO SIG.MOD  
Error 60, SLAVE TIMEOUT  
A Signature Module is connected to a channel which doesn’t support Signature Cali-  
bration. Only Strain Gage Input channels are designed to operate with Signature Cal-  
ibration.  
The channel’s microprocessor did not respond because the channel’s analog-to-digi-  
tal converter did not calibrate properly. Restart the instrument.  
page 154  
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Error 61, LOAD NOT GT LOAD  
A load applied during a known-load calibration was not greater than a previously  
applied load. To insure both correct operation of the transducer and application of the  
load, the instrument expects the voltage applied at each known-load point to be  
increasing. For example, the load applied at Known-Load Point 2/2 must cause the  
transducer to produce a more positive voltage than at Known-Load Point 1/2.  
If you are calibrating with a AC-AC LVDT Input channel, make certain that you have  
followed the procedure described in “Electrical Null and Transducer Mounting” on  
page 93.  
Error 62, SLAVE NAK  
The channel’s microprocessor is responding to a message, but it did not acknowledge  
it correctly. Restart the instrument.  
Error 67, LOADS NOT CLOSE  
During a 5-Point Known-Load calibration, you would typically apply loads at 0%, 25%,  
50%, 75% and 100% of the transducer’s full-scale and optionally calibrate the return  
points of 75%, 50%, 25% and 0%. The instrument makes sure that transducer read-  
ings taken during the second application of the load are close to the readings taken  
during the first application of the load. This insures both correct operation of the trans-  
ducer and application of the loads.  
Error 68, CAN'T CALIBRATE  
The instrument has detected that the transducer presently connected to the channel is  
different than the transducer the channel was last calibrated with. Ordinarily, the  
instrument would perform a Shunt Calibration or mV/V Calibration. However, since  
the channel’s CALIBRATION TYPE menu item is set to one of the Known-Load Calibration  
settings, no calibration can take place. Either re-connect the original transducer or  
use the SETUP menu to perform a calibration.  
Error 70, CAN'T DO GAIN  
The channel’s EEPROM memory contains an input range setting which is beyond the  
capabilities of the channel. Change the channel’s CALIBRATION DATA -> FULL SCALE MV/V  
menu item to another setting.  
Error 71, SLAVE CHECKSUM  
Error 72, CAN'T DO FILTER  
The channel’s microprocessor did not send a correct checksum to the instrument.  
Restart the instrument.  
The channel’s EEPROM memory contains a frequency response setting which is not  
understood by the instrument. Change the channel’s OPERATION -> FREQ. RESPONSE menu  
item to another setting.  
Error 73, SLAVE NOT INIT  
Error 74, SLAVE BAD REPLY  
The channel’s microprocessor has not yet been initialized by the instrument. Restart  
the instrument.  
The channel’s microprocessor replied with a message that was either not understood  
or different than expected. Restart the instrument.  
Error 75, SLAVE NOT FOUND  
Error 81, OPERAND EXPECTED  
The channel’s microprocessor did not respond. Restart the instrument.  
The first step of a SensoCode program must be an Operand. The SensoCode pro-  
gram loaded in the Mathematics Virtual channel is invalid.  
Error 82, BAD OPERAND  
Error 83, BAD INSTRUCTION  
Error 84, BAD VALUE  
The SensoCode program loaded into a Mathematics Virtual channel contains a bad  
operand.  
The SensoCode program loaded into a Mathematics Virtual channel contains a bad  
instruction.  
A Mathematics Virtual channel has attempted to get a value from a channel not  
installed in the instrument.  
SC Series Instruction Manual page 155  
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Error 85, UNREACHABLE GOTO  
Error 87, GOTO NOT JUMP  
The destination step of a “Go to” Instruction is beyond the end of the SensoCode pro-  
gram. The SensoCode program loaded in the Mathematics Virtual channel is invalid.  
The SensoCode program contains a “Go to” Instruction that has not been converted  
into a “Jump” Instruction. Restart the instrument.  
page 156  
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Chapter 18  
Setup Menu Reference  
18.1 Navigation instructions  
•
•
•
•
•
Press [UP]+[DOWN] to enter the SETUP menu mode.  
Press [UP] to move up.  
Press [DOWN] to move down.  
Press [ENTER] to select an item.  
Press [EXIT] to re-start the instrument.  
SC Series Instruction Manual page 157  
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Table 7-10: SETUP Menu  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(menu varies according to channel type)  
(see LIMIT MENU)  
(see LIMIT MENU)  
(see LIMIT MENU)  
(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(optional)(see LIMIT MENU)  
(see SYSTEM MENU)  
CHANNEL 01 MENU  
CHANNEL 02 MENU  
CHANNEL 03 MENU  
CHANNEL 04 MENU  
CHANNEL 05 MENU  
CHANNEL 06 MENU  
CHANNEL 07 MENU  
CHANNEL 08 MENU  
CHANNEL 09 MENU  
CHANNEL 10 MENU  
CHANNEL 11 MENU  
CHANNEL 12 MENU  
CHANNEL 13 MENU  
CHANNEL 14 MENU  
CHANNEL 15 MENU  
CHANNEL 16 MENU  
CHANNEL 17 MENU  
CHANNEL 18 MENU  
CHANNEL 19 MENU  
CHANNEL 20 MENU  
CHANNEL 21 MENU  
CHANNEL 22 MENU  
CHANNEL 23 MENU  
LIMIT 01 MENU  
LIMIT 02 MENU  
LIMIT 03 MENU  
LIMIT 04 MENU  
LIMIT 05 MENU  
LIMIT 06 MENU  
LIMIT 07 MENU  
LIMIT 08 MENU  
LIMIT 09 MENU  
LIMIT 10 MENU  
LIMIT 11 MENU  
LIMIT 12 MENU  
LIMIT 13 MENU  
LIMIT 14 MENU  
LIMIT 15 MENU  
LIMIT 16 MENU  
SYSTEM MENU  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
ꢀꢀꢀ  
(see SERIAL COM MENU)  
(see DISPLAY MENU)  
SERIAL COM MENU  
DISPLAY MENU  
page 158  
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Table 7-11: System Menu  
page 41  
page 41  
SYSTEM MENU  
SOFTWARE REVISION  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
CONFIGURATION  
DISPLAY TYPE  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢃ
CHANNEL 01 TYPE  
CHANNEL 02 TYPE  
CHANNEL 03 TYPE  
CHANNEL 04 TYPE  
CHANNEL 05 TYPE  
CHANNEL 06 TYPE  
CHANNEL 07 TYPE  
CHANNEL 08 TYPE  
CHANNEL 09 TYPE  
CHANNEL 10 TYPE  
CHANNEL 11 TYPE  
CHANNEL 12 TYPE  
CHANNEL 14 TYPE  
CHANNEL 15 TYPE  
CHANNEL 16 TYPE  
CHANNEL 17 TYPE  
CHANNEL 18 TYPE  
CHANNEL 19 TYPE  
CHANNEL 20 TYPE  
CHANNEL 21 TYPE  
CHANNEL 22 TYPE  
CHANNEL 23 TYPE  
LEAVE SUB-MENU  
OUTPUT 1, PIN 14  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 41  
DIAGNOSTICS  
ON  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
OUTPUT 2, PIN 15  
OUTPUT 3, PIN 16  
OUTPUT 4, PIN 17  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
ꢃ
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
ꢃ
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢃ
page 41  
page 41  
INPUT TEST  
ꢃ
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
SCAN TIME  
ꢃ
LEAVE SUB-MENU  
65 STRAIN GAGE V  
66 STRAIN GAGE I  
67 HIGH-LEVEL V  
68 HIGH-LEVEL I  
6B LVDT V OUT  
6C LVDT I OUT  
90 LIMIT 01-04  
91 LIMIT 05-08  
92 LIMIT 09-12  
93 LIMIT 13-16  
AB SPLIT DISPLAY  
AE MATHEMATICS  
ꢃ
page 42  
INSTALL CHANNEL  
ꢂꢀ  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 44  
page 44  
DELETE CHANNEL  
DEFAULT CHANNEL  
LEAVE MENU  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
SC Series Instruction Manual page 159  
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Table 7-12: LIMIT MENU  
page 55  
LIMIT xx MENU  
LIMIT. ENABLE  
ON  
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
OFF  
ꢄꢀ  
page 55  
page 55  
page 55  
LIMIT. SETPOINT  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢃ
LIMIT. RETURN PNT  
LIMIT. ENERGIZE  
SIGNAL>SETPOINT  
SIGNAL<SETPOINT  
SIGNAL INSIDE  
SIGNAL OUTSIDE  
ON  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢃ
ꢃ
ꢄꢀ  
page 57  
LIMIT. LATCHING  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
page 57  
page 57  
LIMIT. CHANNEL  
LIMIT. SOURCE  
ꢂꢀ  
ꢂꢀ  
ꢃ
TRACK  
PEAK  
ꢀꢁꢀ  
ꢂꢀ  
VALLEY  
ꢃ
ꢄꢀ  
LEAVE MENU  
ꢄꢀ  
Table 7-13: SERIAL COMMUNICATIONS Menu  
page 49  
page 49  
page 49  
page 49  
page 49  
SERIAL COM MENU  
INTERFACE  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ADDRESS  
BAUD RATE  
AUTO LINE-FEED  
TRANSMIT TEST  
LEAVE MENU  
Table 7-14: DISPLAY Menu for Models SC2000, SC2001  
page 51  
page 51  
page 51  
DISPLAY MENU  
UPPER CHANNEL  
ꢀꢁꢀ  
LOWER CHANNEL  
LOWER MODE  
ꢂꢀ  
ꢂꢀ  
ꢃ
BLANK  
ꢀꢁꢀ  
ꢂꢀ  
LIMITS 01-04  
CHANNEL  
ON  
ꢃ
ꢄꢀ  
page 51  
DISPLAY DISABLE  
LEAVE MENU  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢄꢀ  
Table 7-15: DISPLAY Menu for Model SC3004  
page 51  
DISPLAY MENU  
POWERON CHANNEL  
LEAVE MENU  
ꢀꢁꢀ  
ꢄꢀ  
page 160  
008-0608-00  
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Table 7-16: Strain Gage Input Channel Menu  
page 63  
page 63  
CHANNEL xx MENU  
OPERATION  
AUTO-ZERO  
ON  
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢄꢀ  
OFF  
FREQ. RESPONSE  
002. HERTZ/FAST  
002. HERTZ  
008. HERTZ  
016. HERTZ  
032. HERTZ  
050. HERTZ  
100. HERTZ  
250. HERTZ  
500. HERTZ  
800. HERTZ  
TRACK  
ꢃ
ꢂꢀ  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 64  
POWER-ON SOURCE  
ꢃ
ꢂꢀ  
ꢃ
PEAK  
ꢃ
VALLEY  
ꢃ
ꢃ
LEAVE SUB-MENU  
DISPLAY. DIGITS  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢃ
page 65  
page 65  
DISPLAY SETUP  
5 DIGIT-BIPOLAR  
6 DIGIT-UNIPOLAR  
7 DIGIT-UNIPOLAR  
99999.  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢃ
ꢃ
DISPLAY. DECPT  
ꢃ
ꢂꢀ  
ꢃ
9999.9  
ꢃ
999.99  
ꢃ
ꢃ
99.999  
ꢃ
ꢃ
9.9999  
ꢃ
ꢃ
.99999  
ꢃ
ꢃ
page 65  
DISPLAY. COUNTBY  
00001  
ꢃ
ꢂꢀ  
ꢃ
00002  
ꢃ
00005  
ꢃ
ꢃ
00010  
ꢃ
ꢃ
00020  
ꢃ
ꢃ
00050  
ꢃ
ꢃ
00100  
ꢃ
ꢃ
00200  
ꢃ
ꢃ
page 65  
page 65  
DISPLAY. UNITS  
ꢃ
ꢂꢀ  
ꢃ
DISPLAY. AVERAGE  
ON  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢃ
ꢃ
LEAVE SUB-MENU  
DISABLED  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
page 59  
page 59  
page 67  
AUX1 FUNCTION  
AUX2 FUNCTION  
CALIBRATION TYPE  
ꢂꢀ  
ꢃ
TRACK HOLD  
HIGH/LOW HOLD  
HIGH/LOW CLEAR  
TARE ON  
ꢃ
ꢃ
ꢃ
TARE OFF  
ꢃ
DISABLED  
ꢂꢀ  
ꢃ
TRACK HOLD  
HIGH/LOW HOLD  
HIGH/LOW CLEAR  
TARE ON  
ꢃ
ꢃ
ꢃ
TARE OFF  
ꢃ
TYPE=SHUNT CAL  
TYPE=MV/V CAL  
ꢂꢀ  
ꢃ
SC Series Instruction Manual page 161  
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Table 7-16: Strain Gage Input Channel Menu (Continued)  
TYPE=2 POINT CAL  
ꢃ
ꢂꢀ  
TYPE=3 POINT CAL  
ꢃ
ꢂꢀ  
TYPE=5 POINT CAL  
ꢃ
ꢄꢀ  
(menu varies with  
calibration type)  
page 69  
CALIBRATION DATA  
EXCITATION  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
FULL-SCALE MV/V  
FULL-SCALE VALUE  
ZERO-SCALE VALUE  
SHUNT CAL VALUE  
ꢃ
ꢃ
ꢃ
KNOWN LOAD POINT 1/5  
KNOWN LOAD POINT 2/5  
KNOWN LOAD POINT 3/5  
KNOWN LOAD POINT 4/5  
KNOWN LOAD POINT 5/5  
LEAVE SUB-MENU  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 71  
page 73  
CALIBRATE  
DAC SETUP  
ꢂꢀ  
ꢂꢀ  
ꢃ
DAC. CHANNEL  
DAC. SOURCE  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
TRACK  
ꢀꢁꢀ  
PEAK  
ꢃ
ꢂꢀ  
VALLEY  
ꢃ
ꢃ
ꢄꢀ  
DAC. ZERO-SCALE  
DAC. FULL-SCALE  
LEAVE SUB-MENU  
UPDATE SIG.MOD?  
ꢃ
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢃ
ꢃ
ꢃ
page 74  
SIGNATURE MODULE  
NO  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
YES  
ꢄꢀ  
DEFAULT SIG.MOD?  
UPDATE DAC SETUP?  
LEAVE SUB-MENU  
NO  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
YES  
ꢃ
ꢄꢀ  
NO  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
YES  
ꢃ
ꢄꢀ  
ꢃ
ꢄꢀ  
ꢃ
page 75  
DIAGNOSTICS  
DAC FULL SCALE  
DAC ZERO SCALE  
VERSION INFO  
DISPLAY ADC  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢃ
ꢃ
ON  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢄꢀ  
LINEARIZATION  
DISABLE CHANNEL  
LEAVE SUB-MENU  
ON  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢄꢀ  
ON  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢄꢀ  
ꢃ
ꢄꢀ  
LEAVE MENU  
ꢄꢀ  
page 162  
008-0608-00  
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Table 7-17: AC-AC LVDT Input Channel Menu  
page 83  
page 83  
CHANNEL xx MENU  
OPERATION  
AUTO-ZERO  
ON  
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢄꢀ  
OFF  
FREQ. RESPONSE  
002. HERTZ/FAST  
002. HERTZ  
008. HERTZ  
016. HERTZ  
032. HERTZ  
050. HERTZ  
100. HERTZ  
250. HERTZ  
500. HERTZ  
800. HERTZ  
TRACK  
ꢃ
ꢂꢀ  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 84  
POWER-ON SOURCE  
ꢃ
ꢂꢀ  
ꢃ
PEAK  
ꢃ
VALLEY  
ꢃ
ꢃ
LEAVE SUB-MENU  
DISPLAY. DIGITS  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢃ
page 85  
page 85  
DISPLAY SETUP  
5 DIGIT-BIPOLAR  
6 DIGIT-UNIPOLAR  
7 DIGIT-UNIPOLAR  
99999.  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢃ
ꢃ
DISPLAY. DECPT  
ꢃ
ꢂꢀ  
ꢃ
9999.9  
ꢃ
999.99  
ꢃ
ꢃ
99.999  
ꢃ
ꢃ
9.9999  
ꢃ
ꢃ
.99999  
ꢃ
ꢃ
page 85  
DISPLAY. COUNTBY  
00001  
ꢃ
ꢂꢀ  
ꢃ
00002  
ꢃ
00005  
ꢃ
ꢃ
00010  
ꢃ
ꢃ
00020  
ꢃ
ꢃ
00050  
ꢃ
ꢃ
00100  
ꢃ
ꢃ
00200  
ꢃ
ꢃ
page 85  
page 85  
DISPLAY. UNITS  
ꢃ
ꢂꢀ  
ꢃ
DISPLAY. AVERAGE  
ON  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢃ
ꢃ
LEAVE SUB-MENU  
DISABLED  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
page 85  
page 85  
page 87  
AUX1 FUNCTION  
AUX2 FUNCTION  
CALIBRATION TYPE  
ꢂꢀ  
ꢃ
TRACK HOLD  
HIGH/LOW HOLD  
HIGH/LOW CLEAR  
TARE ON  
ꢃ
ꢃ
ꢃ
TARE OFF  
ꢃ
DISABLED  
ꢂꢀ  
ꢃ
TRACK HOLD  
HIGH/LOW HOLD  
HIGH/LOW CLEAR  
TARE ON  
ꢃ
ꢃ
ꢃ
TARE OFF  
ꢃ
TYPE=2 POINT CAL  
TYPE=3 POINT CAL  
ꢂꢀ  
ꢃ
SC Series Instruction Manual page 163  
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Table 7-17: AC-AC LVDT Input Channel Menu (Continued)  
TYPE=5 POINT CAL  
ꢃ
ꢄꢀ  
page 88  
CALIBRATION DATA  
FULL SCALE VRMS  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
KNOWN LOAD POINT 1/5  
KNOWN LOAD POINT 2/5  
KNOWN LOAD POINT 3/5  
KNOWN LOAD POINT 4/5  
KNOWN LOAD POINT 5/5  
LEAVE SUB-MENU  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 89  
page 91  
CALIBRATE  
DAC SETUP  
ꢂꢀ  
ꢂꢀ  
ꢃ
DAC. CHANNEL  
DAC. SOURCE  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
TRACK  
PEAK  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
VALLEY  
ꢃ
ꢃ
ꢄꢀ  
DAC. ZERO-SCALE  
DAC. FULL-SCALE  
LEAVE SUB-MENU  
ꢃ
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢃ
ꢃ
ꢃ
page 92  
DIAGNOSTICS  
DAC FULL SCALE  
DAC ZERO SCALE  
VERSION INFO  
DISPLAY ADC  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢃ
ꢃ
ON  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
ꢃ
LINEARIZATION  
LEAVE SUB-MENU  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢃ
ꢃ
ꢄꢀ  
LEAVE MENU  
ꢄꢀ  
page 164  
008-0608-00  
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Table 7-18: High-Level Input Channel Menu  
page 109  
page 109  
CHANNEL xx MENU  
OPERATION  
AUTO-ZERO  
ON  
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢄꢀ  
OFF  
FREQ. RESPONSE  
002. HERTZ/FAST  
002. HERTZ  
008. HERTZ  
016. HERTZ  
032. HERTZ  
050. HERTZ  
100. HERTZ  
250. HERTZ  
500. HERTZ  
800. HERTZ  
TRACK  
ꢃ
ꢂꢀ  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 109  
POWER-ON SOURCE  
ꢃ
ꢂꢀ  
ꢃ
PEAK  
ꢃ
VALLEY  
ꢃ
ꢃ
LEAVE SUB-MENU  
DISPLAY. DIGITS  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢃ
page 111  
page 111  
DISPLAY SETUP  
5 DIGIT-BIPOLAR  
6 DIGIT-UNIPOLAR  
7 DIGIT-UNIPOLAR  
99999.  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢃ
ꢃ
DISPLAY. DECPT  
ꢃ
ꢂꢀ  
ꢃ
9999.9  
ꢃ
999.99  
ꢃ
ꢃ
99.999  
ꢃ
ꢃ
9.9999  
ꢃ
ꢃ
.99999  
ꢃ
ꢃ
page 111  
DISPLAY. COUNTBY  
00001  
ꢃ
ꢂꢀ  
ꢃ
00002  
ꢃ
00005  
ꢃ
ꢃ
00010  
ꢃ
ꢃ
00020  
ꢃ
ꢃ
00050  
ꢃ
ꢃ
00100  
ꢃ
ꢃ
00200  
ꢃ
ꢃ
page 111  
page 111  
DISPLAY. UNITS  
ꢃ
ꢂꢀ  
ꢃ
DISPLAY. AVERAGE  
ON  
ꢃ
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢃ
ꢃ
LEAVE SUB-MENU  
DISABLED  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
page 112  
page 112  
page 113  
AUX1 FUNCTION  
AUX2 FUNCTION  
CALIBRATION TYPE  
ꢂꢀ  
ꢃ
TRACK HOLD  
HIGH/LOW HOLD  
HIGH/LOW CLEAR  
TARE ON  
ꢃ
ꢃ
ꢃ
TARE OFF  
ꢃ
DISABLED  
ꢂꢀ  
ꢃ
TRACK HOLD  
HIGH/LOW HOLD  
HIGH/LOW CLEAR  
TARE ON  
ꢃ
ꢃ
ꢃ
TARE OFF  
ꢃ
TYPE=SHUNT CAL  
TYPE=2 POINT CAL  
ꢂꢀ  
ꢃ
SC Series Instruction Manual page 165  
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Table 7-18: High-Level Input Channel Menu (Continued)  
TYPE=3 POINT CAL  
ꢃ
ꢂꢀ  
TYPE=5 POINT CAL  
ꢃ
ꢄꢀ  
FULL-SCALE VOLT/CURR(menu varies with  
page 115  
CALIBRATION DATA  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
calibration type)  
FULL-SCALE VALUE  
ZERO-SCALE VALUE  
ꢃ
SHUNT CAL VALUE  
ꢃ
KNOWN LOAD POINT 1/5  
KNOWN LOAD POINT 2/5  
KNOWN LOAD POINT 3/5  
KNOWN LOAD POINT 4/5  
KNOWN LOAD POINT 5/5  
LEAVE SUB-MENU  
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
page 117  
page 119  
CALIBRATE  
DAC SETUP  
ꢂꢀ  
ꢂꢀ  
ꢃ
DAC. CHANNEL  
DAC. SOURCE  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
TRACK  
ꢀꢁꢀ  
PEAK  
ꢃ
ꢂꢀ  
VALLEY  
ꢃ
ꢃ
ꢄꢀ  
DAC. ZERO-SCALE  
DAC. FULL-SCALE  
LEAVE SUB-MENU  
ꢃ
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢃ
ꢃ
ꢃ
page 120  
DIAGNOSTICS  
DAC FULL SCALE  
DAC ZERO SCALE  
VERSION INFO  
DISPLAY ADC  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢃ
ꢃ
ON  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢄꢀ  
LINEARIZATION  
DISABLE CHANNEL  
LEAVE SUB-MENU  
ON  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢄꢀ  
ON  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢄꢀ  
ꢃ
ꢄꢀ  
LEAVE MENU  
ꢄꢀ  
page 166  
008-0608-00  
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Table 7-19: Relay Output Channel  
RELAY 1  
page 127  
page 127  
page 127  
page 127  
CHANNEL xx MENU  
DIAGNOSTICS  
ON  
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
ꢃ
RELAY 2  
ꢃ
ꢂꢀ  
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
ꢃ
ꢃ
RELAY 3  
ꢃ
ꢂꢀ  
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ON  
ꢃ
ꢃ
RELAY 4  
ꢃ
ꢂꢀ  
ꢀꢁꢀ  
ꢄꢀ  
OFF  
ꢃ
ꢃ
LEAVE SUB-MENU  
ꢃ
ꢄꢀ  
LEAVE MENU  
ꢄꢀ  
Table 7-20: DAC Output Channel Menu  
page 133  
page 134  
CHANNEL xx MENU  
DAC SETUP  
DAC. CHANNEL  
ꢀꢁꢀ  
ꢃ
ꢀꢁꢀ  
DAC. SOURCE  
TRACK  
PEAK  
ꢂꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
ꢃ
ꢃ
VALLEY  
ꢃ
ꢄꢀ  
DAC. ZERO-SCALE  
ꢃ
ꢂꢀ  
DAC. FULL-SCALE  
ꢃ
ꢂꢀ  
LEAVE SUB-MENU  
ꢃ
ꢄꢀ  
DIAGNOSTICS  
LEAVE MENU  
DAC FULL SCALE  
DAC ZERO SCALE  
LEAVE SUB-MENU  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
ꢄꢀ  
ꢄꢀ  
Table 7-21: Split Display Virtual Channel  
page 140  
page 140  
CHANNEL xx MENU  
LEFT CHANNEL  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
LEFT SOURCE  
TRACK  
PEAK  
ꢀꢁꢀ  
ꢂꢀ  
VALLEY  
ꢃ
ꢄꢀ  
page 140  
page 140  
RIGHT CHANNEL  
RIGHT SOURCE  
ꢂꢀ  
ꢂꢀ  
ꢃ
TRACK  
PEAK  
ꢀꢁꢀ  
ꢂꢀ  
VALLEY  
ꢃ
ꢄꢀ  
LEAVE MENU  
ꢄꢀ  
SC Series Instruction Manual page 167  
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Table 7-22: Mathematics Virtual Channel  
page 146  
(item name may vary) page 146  
(item name may vary)  
(item name may vary)  
(item name may vary)  
CHANNEL xx MENU  
SENSOCODE P/N  
ꢀꢁꢀ  
ꢂꢀ  
ꢃ
USER VALUES  
USER VALUE 1  
USER VALUE 2  
USER VALUE 3  
USER VALUE 4  
LEAVE SUB-MENU  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢃ
ꢃ
ꢃ
page 146  
page 146  
VIEW SENSOCODE  
VIEW COMMANDS  
ꢂꢀ  
ꢂꢀ  
ꢃ
COMMAND 0  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
ꢀꢁꢀ  
ꢃ
COMMAND 1  
COMMAND 2  
ꢃ
COMMAND 3  
ꢃ
COMMAND 4  
ꢃ
COMMAND 5  
ꢃ
COMMAND 6  
ꢃ
COMMAND 7  
ꢃ
LEAVE SUB-MENU  
DISPLAY. DIGITS  
ꢃ
page 147  
5 DIGIT-BIPOLAR  
DISPLAY SETUP  
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
6 DIGIT-UNIPOLAR  
ꢂꢀ  
7 DIGIT-UNIPOLAR  
ꢃ
ꢃ
ꢄꢀ  
page 147  
DISPLAY. DECPT  
99999.  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
9999.9  
ꢃ
ꢂꢀ  
999.99  
ꢃ
ꢃ
ꢂꢀ  
99.999  
ꢃ
ꢃ
ꢂꢀ  
9.9999  
ꢃ
ꢃ
ꢂꢀ  
.99999  
ꢃ
ꢃ
ꢄꢀ  
page 147  
DISPLAY. COUNTBY  
00001  
ꢃ
ꢂꢀ  
ꢃ
ꢀꢁꢀ  
00002  
ꢃ
ꢂꢀ  
00005  
ꢃ
ꢃ
ꢂꢀ  
00010  
ꢃ
ꢃ
ꢂꢀ  
00020  
ꢃ
ꢃ
ꢂꢀ  
00050  
ꢃ
ꢃ
ꢂꢀ  
00100  
ꢃ
ꢃ
ꢂꢀ  
00200  
ꢃ
ꢃ
ꢄꢀ  
page 147  
DISPLAY. UNITS  
ꢃ
ꢂꢀ  
ꢃ
page 147  
DISPLAY. AVERAGE  
ON  
ꢃ
ꢀꢁꢀ  
OFF  
ꢃ
ꢃ
ꢄꢀ  
LEAVE SUB-MENU  
TRACK  
ꢃ
ꢄꢀ  
ꢀꢁꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢂꢀ  
ꢄꢀ  
page 148  
POWER-ON SOURCE  
ꢂꢀ  
ꢃ
PEAK  
VALLEY  
ꢃ
(SC3004 only)  
(SC3004 only)  
(SC3004 only)  
TRACK / PEAK  
TRACK / VALLEY  
PEAK / VALLEY  
ꢃ
ꢃ
ꢃ
LEAVE MENU  
ꢄꢀ  
page 168  
008-0608-00  
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Index  
A
C
AC/AC-LVDT Input channel 79  
2-Point Known Displacement Calibration 87–89  
3-Point Known Displacement Calibration 87–89  
5-Point Known Displacement Calibration 87–89  
Analog Output 91–92, 94–95  
auto-zero function 83  
calibration  
AC/AC-LVDT Input channel 81  
High-Level Input channel 107  
Strain-Gage Input channel 61  
case removal  
of SC1000 and SC2000 28  
of SC2001 31  
of SC3004 34  
Auxilliary Function pins 85, 95  
calibration procedure 81  
calibration types comparison 87  
display setup 85  
Electrical Null 93  
EMI/RFI interference 95  
frequency response 83  
channel  
address jumpers 42  
changing which is displayed 21, 51  
clearing peak and valley 20  
deleting last in instrument 44  
Input 12  
OVLD message 95  
remote control of Track/Hold, Peak/Valley clear,  
Peak/Valley hold or Tare 85, 95  
resolution 83  
installation 42  
list of all in instrument 41  
Output 12  
SETUP menu 83  
software revision 92  
reset to default settings 44  
types 12  
specifications 82  
Virtual 12  
step response time 83  
Transducer Mounting 93  
CHANNEL button 21  
Chassis 25  
troubleshooting 95  
wiring 80  
Analog Output  
CLEAR button 20, 57  
Communications Guide 11, 47  
connectors  
AC/AC-LVDT Input channel 91–92, 94–95  
DAC Output channel 134–136  
High-Level Input channel 119–122  
Strain-Gage Input channel 73–77  
auto-zero function  
AC/AC-LVDT Input channel 83  
High-Level Input channel 109  
Strain-Gage Input channel 63  
Auxilliary Function pins  
System 36  
Customer Information Sheet 11  
D
DAC Output channel 129  
Analog Output 134–136  
EMI/RFI interference 136  
SETUP menu 133  
setup procedure 131  
specifications 132  
troubleshooting 136  
AC/AC-LVDT Input channel 85, 95  
High-Level Input channel 112, 122  
Strain-Gage Input channel 66, 77  
wiring 130  
display  
B
averaging  
buttons  
AC/AC-LVDT Input channel 85  
High-Level Input channel 111  
Mathematics Virtual channel 147  
Strain-Gage Input channel 65  
changing channel shown on 21, 51  
decimal points  
CHANNEL 21  
CLEAR 20, 57  
DOWN 23  
ENTER 23  
EXIT 23  
TARE 21  
UP 23  
VALUE 20  
AC/AC-LVDT Input channel 85  
High-Level Input channel 111  
Mathematics Virtual channel 147  
Strain-Gage Input channel 65  
disabling 51  
lower line 20, 51  
SC Series Instruction Manual - Model SC500 page 169  
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OVLD message  
resolution 109  
AC/AC-LVDT Input channel 95  
SETUP menu 109  
Shunt Calibration 21, 113, 115, 117  
software revision 120  
specifications 108  
step response time 109  
troubleshooting 122  
wiring 98  
High-Level Input channel 122  
Strain-Gage Input channel 77  
percentage of Analog-to-Digital converter input 20  
symbols 20  
track, peak or valley 20  
units of measure  
AC/AC-LVDT Input channel 85  
High-Level Input channel 111  
Mathematics Virtual channel 147  
Strain-Gage Input channel 65  
when shunt calibration resistor applied 21  
DOWN button 23  
I
indicator lights  
limits 54  
lower line display of 51  
Tare 21  
INITIALIZE mode 19  
installation of channels 42  
E
EMI/RFI interference  
AC/AC-LVDT Input channel 95  
DAC Output channel 136  
High-Level Input channel 122  
Strain-Gage Input channel 78  
ENTER button 23  
error messages 151  
ERROR mode 22  
excitation  
Strain-Gage Input channel 69  
EXIT button 23  
L
LEDs. See indicator lights.  
lights. See indicator lights.  
limits  
clearing latched limits 20  
enabling 55  
indicator lights  
latching 57  
Limits 01-04 54, 123  
Limits 05-08 54, 123  
Limits 09-12 54, 123  
Limits 13-16 54, 123  
open-collector outputs 38  
operation 54–55, 57  
Relay Output channels 54  
scan time 54  
F
frequency response  
AC/AC-LVDT Input channel 83  
High-Level Input channel 109  
Strain-Gage Input channel 63  
fuse replacement  
SETUP menu 55  
of SC1000 and SC2000 30  
of SC2001 32  
of SC3004 34  
wiring 36  
LVDT Input channel  
See AC/AC-LVDT Input channel  
H
M
High-Level Input channel 97  
Mathematics Virtual channel 143  
display setup 147  
2-Point Known Load Calibration 113, 115, 117  
3-Point Known Load Calibration 113, 115, 117  
5-Point Known Load Calibration 113–114, 116, 118  
Analog Output 119–122  
operation 145  
SensoCode 143  
part number 146  
auto-zero function 109  
Auxilliary Function pins 112, 122  
calibration procedure 107  
calibration types comparison 113  
display setup 111  
viewing program 146  
SETUP menu 146  
troubleshooting 149  
user values 146  
wiring 144  
EMI/RFI interference 122  
menu. See SETUP menu mode.  
frequency response 109  
OVLD message 122  
remote control of Track/Hold, Peak/Valley clear,  
Peak/Valley hold or Tare 112, 122  
O
operating modes 19  
page 170  
008-0671-00  
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ERROR 22  
INITIALIZE 19  
RUN 20  
software revision 146  
viewing 146  
Serial Communications 47  
communications parameters 48–49  
RS-232 defined 48  
SETUP menu 23  
OVLD message  
AC/AC-LVDT Input channel 95  
High-Level Input channel 122  
Strain-Gage Input channel 77  
RS-485 defined 48  
Serial Communications Guide 11  
SETUP menu mode  
navigation instructions 157  
overview 23  
reference 158  
P
panel mounting  
of SC1000 and SC2000 27  
shunt calibration check 21  
Signature Calibration  
defined 14  
with Strain-Gage Input channel 67, 74  
Signature Module 74  
defaulting to factory settings 74  
updating channel’s Analog Ouput settings 74  
writing with information from SETUP menus 74  
software revision  
of SC3004 33  
Peak/Valley values  
AC/AC-LVDT Input channel 83  
displaying 20  
High-Level Input channel 109  
remote clearing of all 36  
Strain-Gage Input channel 63  
AC/AC-LVDT Input channel 92  
chassis 41  
Q
High-Level Input channel 120  
Mathematics Virtual channel 146  
SensoCode program 146  
Strain-Gage Input channel 75  
specifications  
quick start 15  
R
rack mounting  
AC/AC-LVDT Input channel 82  
Chassis Models 26  
of SC1000 and SC2000 28  
Relay Output channel 123  
diagnostics 127  
DAC Output channel 132  
High-Level Input channel 108  
Relay Output channel 126  
Strain-Gage Input channel 62  
Split Display Virtual channel 139  
display formatting 139  
SETUP menu 127  
specifications 126  
wiring 124  
remote control. See Auxilliary Function pins 66, 85, 112  
resolution  
AC/AC-LVDT Input channel 83  
High-Level Input channel 109  
Strain-Gage Input channel 63  
RS-232  
SETUP menu 140  
step response time  
AC/AC-LVDT Input channel 83  
High-Level Input channel 109  
Strain-Gage Input channel 63  
Strain-Gage Input channel  
2-Point Known Load Calibration 67–68, 70–71  
3-Point Known Load Calibration 67–68, 70–71  
5-Point Known Load Calibration 67–68, 70, 72  
Analog Output 73–77  
wiring 36  
RS-232. See Serial Communications  
RS-485  
wiring 36  
RS-485. See Serial Communications  
RUN mode 20  
auto-zero function 63  
Auxilliary Function pins 66, 77  
calibration procedure 61  
calibration types comparison 67  
display setup 65  
EMI/RFI interference 78  
excitation 69  
frequency response 63  
mV/V Calibration 67–68, 71  
OVLD message 77  
remote control of Track/Hold, Peak/Valley clear,  
Peak/Valley hold or Tare 66, 77  
S
SC Series  
features 12  
SC1000 20, 27  
SC2000 27  
SC2001 31  
SC3004 33, 139  
SensoCode 143  
part number 146  
SC Series Instruction Manual - Model SC500 page 171  
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resolution 63  
SETUP menu 63  
Shunt Calibration 21, 67, 69, 71  
software revision 75  
specifications 62  
step response time 63  
troubleshooting 77  
wiring 60  
High-Level Input channel 122  
Strain-Gage Input channel 77  
U
UP button 23  
user values 146  
System Connector  
diagnostics 41  
V
VALUE button 20  
pinout 36  
W
wiring  
T
Tare  
AC/AC-LVDT Input channel 80  
DAC Output channel 130  
High-Level Input channel 98  
Mathematics Virtual channel 144  
Relay Output channel 124  
Strain-Gage Input channel 60  
activating or deactivating 21  
remote of all channels 36  
See also Auxilliary Function pins.  
Tare light 21  
troubleshooting  
AC/AC-LVDT Input channel 95  
DAC Output channel 136  
page 172  
008-0671-00  
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Warranty  
Honeywell warrants goods of its manufacture as being free of defective materials  
and faulty workmanship. Contact your local sales office for warranty information.  
If warranted goods are returned to Honeywell during the period of coverage, Hon-  
eywell will repair or replace without charge those items it finds defective. The  
foregoing is the Buyer’s sole remedy and is in lieu of all other warranties,  
expressed or implied, including those of merchantability and fitness for a particular  
purpose.  
Specifications may change without notice. The information we supply is believed  
to be accurate and reliable as of this printing. However, we assume no responsi-  
bility for its use.  
While we provide applications assistance personally, through our literature and  
the Honeywell web site, it is up to the customer to determine the suitability of the  
product in the application.  
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Honeywell Automation and Control Solutions  
Sensotec Sensors  
2080 Arlingate Lane  
Columbus, Ohio 43228-4112  
Tel: (614)850-5000  
Fax: (614)850-1111  
E-mail: [email protected]  
http://www.honeywell.com/sensotec  
Document Number 008-0608-00 Printed in USA  
© Copyright 2005 Honeywell International Inc.  
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