Furman Sound Power Supply PM PRO E User Manual

FURMAN  
PRO SERIES  
Power Conditioner/Monitor  
MODELS PM-PRO, PM-PRO-E  
Owner's Manual  
3-9844  
© 1998 FURMAN SOUND, INC.  
960112-1407  
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PM-PRO POWER CONDITIONER/MONITOR  
3
Safety Information  
To obtain best results from your Furman PM-PRO, please be sure to read this manual  
carefully before using it.  
WARNING: To reduce the risk of electrical shock, do not expose this equip-  
ment to rain or moisture. Dangerous high voltages are present inside the  
enclosure. Do not remove the covers. There are no user serviceable parts  
inside. Refer servicing to qualified personnel only.  
The lightning flash with arrowhead symbol, within an equi-  
lateral triangle, is intended to alert the user to the presence  
of uninsulated dangerous voltage within the product's enclo-  
sure that may be of sufficient magnitude to constitute a risk  
of electric shock.  
Important Safety Instructions  
Please read prior to installation  
1. Please read and observe all of the safety and operating instructions before the  
PM-PRO is operated. Retain these instructions for future reference.  
2. The PM-PRO should not be used near water -- for example, near a bathtub,  
washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool, etc.  
3. The PM-PRO should be situated so that its location and position do not interfere  
with its proper ventilation. For example, the PM-PRO must not be placed on a rug,  
bed, sofa, or similar surface which impedes airflow across the chassis.  
4. Do not place the PM-PRO near heat sources such as radiators, heat registers,  
stoves, or other appliances that produce heat.  
5. The PM-PRO should only be connected to a 120  
VAC, 60 Hz, 20 amp grounded electrical outlet.  
Outlets wired for 20 amps may be identified by the  
T-shaped socket opening that accepts the perpen-  
dicular blades of the PM-PRO's power plug. If you  
don't have a 20 amp outlet available, have one in-  
stalled by a qualified electrician. Do not defeat the  
ground or polarization of the power plug.  
6. Route the power cord and other cables so that they are not likely to be walked  
on, tripped over, or stressed. Pay particular attention to condition of cords and  
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4
PM-PRO POWER CONDITIONER/MONITOR  
cables at plugs, and the point where they exit from the PM-PRO. To prevent risk of  
fire or injury, damaged cords and cables should be replaced immediately.  
7. Clean the PM-PRO with a damp cloth only. Do not use solvents or abrasive  
cleaners. Never pour any liquid on or into the PM-PRO.  
8. When left unused for a long period of time, the power cord of the PM-PRO should  
be unplugged from the outlet.  
9. The PM-PRO should be serviced by qualified service personnel when:  
a. The power supply cord or the plug has been frayed, kinked, or cut.  
b. Objects have fallen or liquid has spilled into the unit.  
c. The PM-PRO has been exposed to rain or other moisture.  
d. The PM-PRO does not appear to operate normally or exhibits a marked change  
in performance.  
e. The PM-PRO has been dropped, or the enclosure damaged.  
10. The PM-PRO requires that a safety ground be present for proper operation.  
Any attempt to operate the PM-PRO without a safety ground is considered im-  
proper operation and could invalidate the warranty.  
11. There are no user-serviceable parts in the PM-PRO. Refer servicing to qualified  
service personnel only.  
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PM-PRO POWER CONDITIONER/MONITOR  
5
Introduction  
Thank you for your purchase of a Furman PM-PRO or PM-PRO-E Power Con-  
ditioner / Monitor, and congratulations on your choice. (For simplicity, in this manual  
the designation "PM-PRO" refers to either the PM-PRO or the PM-PRO-E unless a  
specific distinction is made. A summary of the differences between the two models  
appears at the bottom of this page.) The PM-PRO is one of Furman's top-of-the-  
line PRO Series power conditioners. It is designed to provide maximum protection  
from the types of hazards faced by delicate analog and digital pro audio and video  
equipment.  
Your PM-PRO provides the most complete and comprehensive protection from  
power line-related transient voltages, noise and wiring faults available. It combines  
a high voltage surge and transient suppressor with an RFI/EMI interference filter.  
The fast-acting suppression circuit responds in less than a nanosecond, clamping  
transient voltages to safe levels. The filter works to prevent noise from fluorescent  
lights, certain dimmers, radio transmitters, and similar sources of "electronic pollu-  
tion" from contaminating the AC line and from there, leaking into sensitive audio,  
video, or computer circuits.  
What sets the Furman Pro Series apart from other conditioners is the quantity,  
quality, and configuration of its suppression devices. These include MOV's, gas  
discharge tubes, fast-blow fuses, and high voltage inductors and capacitors. This  
unique combination can safely absorb and dissipate large spikes from nearby light-  
ning strikes and other sources (up to 11,000 amps across any wiring mode -- hot-  
neutral, hot-ground, or neutral-ground), as well as highly attenuate audible high  
frequency noise. Precise high-inrush magnetic circuit breakers avoid the false trip-  
ping often encountered with large reactive loads like power amps.  
The PM-PRO front panel provides a three-color, 20-LED line voltage meter, a  
true RMS reading 10-LED AC ammeter, and three status LEDs to indicate abnor-  
mal power conditions. The PM-PRO will even keep itself from turning on or shut  
down under extreme conditions, if the voltage is below 80 volts or above 140 volts  
(below 160 volts or above 280 volts for PM-PRO-E). The front panel also provides  
an unswitched outlet (clean, filtered power is provided at the unswitched outlet,  
too) and a 20 amp (16 amp for PM-PRO-E) magnetic circuit breaker rated for use  
as an on/off switch.  
The rear panel provides eight switched AC outlets to power up all your equipment.  
These outlets are spaced widely enough to accommodate up to four bulky plug-  
mounted power supplies ("wall warts"). The heavy duty 12 AWG power cord is 10  
feet (2.4 m) in length for extra reach and durability on stages and other high-traffic  
areas.  
PM-PRO Compared to PM-PRO-E  
The PM-PRO is intended for use with 120 VAC power and is rated at 20 amps;  
the PM-PRO-E is for 230 VAC power and rated at 16 amps. Outlets on the PM-  
PRO-E are IEC-320 types. The GROUND OK feature is not available on the PM-  
PRO-E. Other differences concern the reading of the voltmeter and ammeter and  
other specifications, which are described on page 8 and on the rear cover.  
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6
PM-PRO POWER CONDITIONER/MONITOR  
Front Panel Controls  
PROTECTION  
OK  
EXTREME  
VOLTAGE  
LINE VOLTAGE  
110  
90  
100  
120  
128  
GROUND  
OK  
20 AMP POWER  
CONDITIONER/  
MONITOR  
FLASHES  
WHEN  
SHUT  
MODEL PM-PRO  
AC VOLTS  
FLASHING DISPLAY INDICATES OUT OF RANGE  
DOWN  
This LED is normally on when the power to the PM-PRO's  
PROTECTION OK:  
outlets is switched on. It monitors the integrity of the protection devices and  
reports if the protection is compromised. If an extremely large spike is encoun-  
tered that exceeds the PM-PRO's capacity, the main group of input protectors  
will blow an internal fuse, causing the indicator to go out. If this LED is not lit  
when the power switch is on, full protection is not functioning. Spike protection  
may still exist, but will have a reduced capacity to absorb current. If this LED is  
not lit, please contact the Furman Service Department.  
This LED is normally on when the power to the PM-PRO's outlets is  
GROUND OK:  
switched on. It monitors the integrity of the grounding, and reports if the ground-  
ing is compromised. It lights if a reasonably good safety ground exists. If this  
LED is not lit when the power is on, the PM-PRO is not properly grounded.  
Unplug the PM-PRO and correct the ground. (Not available on PM-PRO-E.)  
This LED status indicator is normally off. It  
EXTREME VOLTAGE SHUTDOWN:  
monitors a hazard unfortunately common in the entertainment industry: wiring  
faults -- for example, accidental connection to 220V where 120V is expected.  
The PM-PRO senses voltages that are so high or low that operation would be  
impossible and shuts the power down before damage can occur. For the PM-  
PRO, the cutoff voltages are under 80V or over 140V; for the PM-PRO-E, under  
160V or over 280V. Upon initially applying power to the PM-PRO, this indicator  
will be lit if the input voltage is below the low cutoff or above the high cutoff, and  
power will not be applied to the PM-PRO's outlets. If the unit has been operat-  
ing within an acceptable input voltage and then that voltage goes out of the ac-  
ceptable range, the PM-PRO will shut power to the outlet and this LED will  
begin flashing.  
NOTE: If the mains power is below the low cutoff voltage and has caused the  
PM-PRO to remove power from its outlets, the PM-PRO will not restore power  
to the outlets until the mains voltage rises to more than 10V above the cutoff.  
Similarly, if the mains power is above the high cutoff and has caused a shut-  
down, the PM-PRO will not restore power to the outlets until the mains voltage  
falls more than 10V below the cutoff. The reason for this is to prevent the  
power oscillating on and off in marginal conditions.  
This three-color, 20 LED bargraph is an accurate, self-check-  
LED VOLTMETER:  
ing AC voltmeter that continually measures normal voltages. The meter reads  
from 90 to 128 volts in 2 volt steps (PM-Pro-E: 180 to 256 volts, in 4 volt  
steps). The normal range voltages are indicated in green, with moderate and  
extremely high or low voltages in yellow and red respectively (see chart on  
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PM-PRO POWER CONDITIONER/MONITOR  
7
20 AMPS  
CURRENT  
2
8
14  
20  
AC AMPS  
- PROTECTIVE SHUTDOWN MAY OCCUR  
POWER  
UNSWITCHED OUTLET  
page 8). The voltmeter provides three special flashing patterns to indicate ab-  
normal power conditions:  
(1) If only the single leftmost LED flashes, the input voltage is marginally low.  
Power to the PM-PRO's outlets will remain on unless the incoming voltage falls  
below the Extreme Voltage Shutdown low cutoff.  
(2) If all of the LEDs on the voltmeter flash, the input voltage is marginally high.  
Power to the PM-PRO's outlets will remain on unless the incoming voltage rises  
above the Extreme Voltage Shutdown high cutoff.  
(3) If none of the LEDs on the voltmeter are lit, and the Extreme Voltage LED  
indicator is flashing continuously, then the PM-PRO has shut down power to its  
switched outlets because the input voltage is in a range considered extreme.  
The PM-PRO's voltmeter has a basic accuracy of plus or minus two volts, and  
extreme cold or heat may cause an additional one volt of error (four volts and  
two volts for the PM-PRO-E). Please note that the voltage reading is advisory only.  
The PM-PRO does not compensate for high or low line voltage. If you frequently  
move your rack to different locations, derive power from generators, use long  
extension cords, travel internationally, or are in an area prone to brownouts,  
you may benefit from the use of one of Furman's AC Line Voltage Regulators.  
This three-color, 10 LED ammeter will give you a reliable indica-  
LED AMMETER:  
tion of current draw even for highly nonlinear loads, like amplifiers and switching  
power supplies. It reads AC current from 0 to 20 amps, in two-amp steps (PM-  
PRO-E: 0 to 16 amps in 1.6 amp steps). When using audio power amps with the  
PM-PRO, it is normal for the current draw to fluctuate considerably, increasing  
on musical peaks and decreasing at quiet times. To avoid tripping the PM-PRO's  
circuit breaker, adjust your levels so that the highest peaks do not exceed the  
rated current.  
NOTE: The Voltmeter, Ammeter, and status LEDs stay on even when the power  
switch is off. This feature allows you to check voltage and current before power-  
ing up your equipment. Both of these LED meters are designed for continuous,  
ongoing use. They consume little power, just a few cents worth a month, much  
like a clock.  
This outlet provides conditioned power at all times when  
UNSWITCHED OUTLET:  
the PM-PRO is plugged in and operating under normal conditions.  
This appears to be an ordinary toggle  
CIRCUIT BREAKER/ON-OFF SWITCH:  
switch, but in fact is a precision magnetic circuit breaker. Because its operation  
is magnetic, not thermal, it is much more accurate in its tripping current, yet it  
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8
PM-PRO POWER CONDITIONER/MONITOR  
will not be tripped falsely by the transient high inrush currents often encoun-  
tered when turning on large reactive loads like power amps. Its trip point is  
unaffected by ambient temperature. The breaker/switch controls power to the  
eight switched rear panel outlets, but does not affect the voltmeter, the amme-  
ter, or the status LEDs. If it trips, reduce the load on the PM-PRO and push it  
back to the ON position. (Note: The PM-PRO-E's circuit breaker is not mag-  
netic.)  
Voltmeter Displays  
The PM-PRO informs you of voltage problems at a glance. The following chart  
summarizes how the PM-PRO's voltmeter responds to input voltages from extremely  
low to extremely high.  
90  
100  
110  
120  
128  
AC VOLTS  
Mains *  
Voltage Status  
PM-PRO Voltmeter Reading  
Outlets  
Below 80V Extreme (Shutdown) Meter off--Extreme Voltage LED flashes  
OFF  
ON  
ON  
ON  
ON  
ON  
ON  
ON  
OFF  
80-90  
90-104  
Low Marginal  
Low  
Medium Low  
Normal  
Medium High  
High  
High Marginal  
The LED beneath the 90V mark flashes  
Meter Reads in Low Red  
Meter Reads in Low Yellow  
Meter Reads in Green  
Meter Reads in High Yellow  
Meter Reads in High Red  
All Meter LEDs Flash  
106-108  
110-120  
122-124  
126-128  
130-140  
Above 140 Extreme (Shutdown) Meter off--Extreme Voltage LED Flashes  
* For PM-PRO-E, double all indicated voltages.  
Power Status LEDs  
PROTECTION  
OK  
EXTREME  
VOLTAGE  
GROUND  
OK  
FLASHES  
WHEN  
SHUT  
DOWN  
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PM-PRO POWER CONDITIONER/MONITOR  
9
PROTECTION OK Indicator not lit.  
Symptom:  
Protection devices are damaged.  
Factory Service.  
Possible Cause:  
Action Needed:  
Ground OK Indicator not lit.  
Symptom:  
No building ground, bad outlet.  
Locate good ground, run ground wire.  
Possible Cause:  
Action Needed:  
Flashing voltmeter display.  
Symptom:  
Input voltage is marginally high or marginally low.  
Correct line voltage. Consider installing a Furman voltage  
regulator.  
Possible Cause:  
Action Needed:  
EXTREME VOLTAGE Indicator is flashing.  
Input voltage is extremely high or extremely low, causing power  
to the PM-PRO's outlets to be shut down.  
Correct line voltage. Consider installing a Furman voltage  
regulator.  
Symptom:  
Possible Cause:  
Action Needed:  
Effects of Lightning  
Lightning is a natural phenomenon of overwhelming force that represents the  
most difficult circumstance faced by a power protection product. The degree of  
protection a PM-PRO can offer depends on the intensity of the strike. If lightning  
strikes a distant power line and causes a relatively small disturbance to reach your  
location, the spike suppressors in the PM-PRO will absorb the excess voltage in-  
visibly and harmlessly. However, if lightning strikes the actual building where the  
PM-PRO is installed (or somewhere very nearby), some damage may be unavoid-  
able due to the extremely high voltage and current present. If this does occur, most  
likely damage will be limited to the PM-PRO itself and will affect only certain spike  
suppression components (called varistors or MOV's.) In this "suicide" mode, the  
PM-PRO may sustain minor damage but generally will protect all equipment plugged  
into it from much more serious and costly damage as long as that equipment is  
properly grounded. Proper grounding requires the use of three-prong AC cords,  
and that the building's outlets are actually grounded to earth as specified by the  
National Electric Code.  
Any PM-PRO known to have taken a direct lightning hit should be checked by a  
qualified technician or the Furman factory to determine whether the MOV's need  
replacement. (If the PROTECTION OK indicator is not lit, there is definitely some  
damage. Some spike suppression capability may still be available by MOV Bank  
#2, but there is no guarantee of this.)  
For optimum protection, you should not rely exclusively on the PM-PRO to pro-  
tect against a direct lightning hit. The first line of defense against lightning should  
be a lightning arrestor installed on your building's electrical service entrance. If your  
building does not have one, contact your local power company or a contractor to  
have one installed.  
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10  
PM-PRO POWER CONDITIONER/MONITOR  
Limited Warranty  
Important Note: To be sure of obtaining full protection under the terms of the  
Three Year Limited Warranty in case your ownership documents are lost,  
please fill out and return the Warranty Registration Card immediately.  
Please verify that the serial number shown on the Warranty Card matches  
the serial number on your unit.  
The Furman PM-PRO is warranted against failures due to defective parts or  
faulty workmanship for a period of three years after delivery to the original owner.  
During this period, Furman will make any necessary repairs without charge for  
parts or labor. Shipping charges to the factory or repair station must be prepaid by  
the owner; return shipping charges (via UPS Ground) will be paid by Furman.  
This warranty applies only to the original owner and is not transferable. Also, it  
does not apply to repairs done other than by the Furman factory or Authorized  
Repair Stations.  
This warranty shall be cancellable by Furman at its sole discretion if the  
PM-PRO unit has been subjected to physical abuse, has been operated without a  
proper safety ground, or has been modified in any way without written authorization  
from Furman. Furman's liability under this warranty is limited to repair or replace-  
ment of the defective unit.  
Furman will not be responsible for incidental or consequential damages result-  
ing from the use or misuse of its products. Some states do not allow the exclusion  
of incidental or consequential damages, so the above limitations may not apply to  
you. This warranty gives you specific legal rights, and you may also have other  
rights which vary from state to state.  
Warranty claims should be accompanied by a copy of the original purchase  
invoice showing the purchase date (if a Warranty Registration Card was mailed in  
at the time of purchase, this is not necessary). Before returning any equipment for  
repair, please read the important information on service below.  
Service  
Before returning any equipment for repair, please be sure that it is adequately  
packed and cushioned against damage in shipment, and that it is insured. We sug-  
gest that you save the original packaging and use it to ship the product for servic-  
ing. Also, please enclose a note giving your name, address, phone number and a  
description of the problem.  
NOTE: All equipment being returned for repair must have a Return Authoriza-  
tion (RA) Number. To get an RA Number, please call the Furman Service Depart-  
ment: (707) 763-1010, ext. 40. Please display your RA Number prominently on the  
front of all packages.  
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PM-PRO POWER CONDITIONER/MONITOR  
11  
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12  
PM-PRO POWER CONDITIONER/MONITOR  
Other Furman Products  
Power Conditioning & Distribution  
PL-8, PL-PLUS  
PL-PRO  
PL-TUNER  
PLH-15  
Power Conditioner & Light Module, 15A  
Power Conditioner & Light Module, 20A  
Power Conditioner/Instrument Tuner, 15A  
Power and Light Center, 15A  
PM-8  
Power Conditioner/Monitor, 15A  
PS-8, PS-8R  
PS-PRO  
Power Conditioner/Sequencer, 15A  
Power Conditioner/Sequencer, 20A  
Remote AC Power Sequence Controller  
Remote AC Power Controller  
Power Relay, 15A  
Power Relay, 20A  
Power Relay for Quad Box Mount, 15A  
Power Relay for Quad Box Mount, 20A  
System Control Panel, Maintained Switching  
System Control Panel, Momentary Switching  
AC Line Voltage Regulator, 15A, 120V  
AC Line Voltage Regulator, 6A, 230V  
AC Line Voltage Regulator, 20A, 120/100V  
AC Line Voltage Regulator, 30A, 120/100V  
AC Line Voltage Regulator, 30A, 220/230/240V  
AC Line Voltage Regulator, 30A, 24,,230,220V, N. America Use  
AC Line Voltage Regulator, 30A, 120V, Worldwide Use  
On-Line Uninterruptible Power Supply, 1KVA  
Power Distro, 100A  
PowerLink  
PowerPort  
MiniPort-15  
MiniPort-20  
MiniPort-15Q  
MiniPort-20Q  
RS-1  
RS-2  
AR-1215  
AR-2306  
AR-1220  
AR-1230  
AR-2330  
AR-2330D  
AR-PRO  
BP-1000  
ACD-100  
ASD-120  
IT-1210  
IT-1220  
IT-1230  
PlugLock  
PlugLock-PRO  
WartStrap  
Sequenced Power Distro, 120A  
Isolation Transformer, Balanced AC Power, 10A  
Isolation Transformer, Balanced AC Power, 20A  
Isolation Transformer, Balanced AC Power, 30A  
Locking Outlet Strip  
Locking Outlet Strips, Vertical Mount  
PlugLock WartStrap "Wall Wart" Retention Kit  
Power Conditioning & DiPsatrraibmuettriicoEnqualizer, Instrument Preamp  
PQ-3 Reissue  
PQ-4  
Parametric Equalizer, 4 band  
Dual 15-Band Graphic Equalizer  
30-Band Graphic Equalizer  
Dual 30-Band Graphic Equalizer  
Quad 5-band Stereo Graphic EQ  
Bass Enhancement System  
12 dB Crossover  
Q-151, Q-152  
Q-301, Q-302  
Q-602  
Q-541  
PUNCH-10  
X-312  
X-324  
X-424  
X-524  
2-Way/3-Way 24 dB Crossover  
3-Way/4,5-Way 24 dB Crossover  
4-Way 24 dB Crossover  
C-132  
Compressor/Limiter  
LC-6  
Stereo Compressor/Gate  
QN-44  
SP-20A  
HA-6A  
HR-2  
HDS-6  
HR-6  
Quad Noise Gate  
Stereo Half rack Power Amp, 20W per channel  
Headphone/Monitor Amp  
Headphone Passive Remote Box  
Headphone Distribution System  
Personal Headphone Mixer for use with HDS-6  
48-Point Patch Bay with TRS Connectors  
48-Point Patch Bay with TRS and D-Sub Connectors  
(Full range of patch cords also available)  
Three Input Mic Mixer  
PB-48  
PB-48D  
MM-3  
MM-4A  
MM-8A  
DJM-6  
DJM-8  
SM-3  
4 x 1 Rack Mount Mixer  
4 x 2 Rack Mount Mixer  
DJ Production Mixer  
DJ Production Mixer  
Stereo Mixer with Ducking  
IP-8  
Iso-Patch, Isolated Patch Bay, 8 Channel  
Iso-Patch, Dual Isolator, 2 Channel  
System Monitor (Power/VU Meter)  
Security Covers  
IP-2, IP-2B  
VU-40  
SC-1,2  
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