POWER
CONDITIONING
FEATURES
The PS-PRO provides a very high degree of power conditioning protection for your expensive and delicate equipment. What sets Furman’s top-of-the- line PRO-level protection apart from that offered by other conditioners is the quantity, quality, and configuration of its suppression devices. These in- clude 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 lightning strikes and other sources (up to 11,000 amps across any wiring mode
—line-neutral, line-ground, or neutral-ground), as well as highly attenuate audible high frequency noise. Clean, filtered power is provided at all 9 outlets, even the unswitched ones.
The PS-PRO also includes special circuitry to detect additional wiring faults, with several front panel LED status indicators. The PS-PRO will even keep itself from turning on, or will shut down under extreme conditions, if the voltage falls below 80 volts or rises above 140 volts. This feature is called“Extreme Voltage Shutdown.”It is particularly valuable in the entertainment industry, where equipment is fre- quently moved to different venues, and accidental connection to 220V is a real possibility. See pages 5-6 or more information on the various protection features’ indicator lights.
Despite its many protective features, you should be aware that the PS-PRO does not compensate if the AC line voltage itself is high or low (i.e., it does not compensate for brownout conditions). If you fre- quently move your rack to different locations, derive power from generators, use long extension cords, travel internationally, or are in an area particularly prone to brownouts, you may benefit from the use of one of Furman’s AC Line Voltage Regulators in addition to the PS-PRO. If you do use a voltage regulator, run the raw power line into the regulator
first so that the PS-PRO receives a stabilized voltage to distribute.
MAINS WIRING FAULT ANALYZER
The PS-PRO also assists in analyzing any faults that may occur in the AC mains wiring. Two green and one red neon indicators light in a specific pattern for normal wiring and in different patterns for various faults. When the AC wiring is correct, both green indicators will be lit, but not the red indicator. If any other pattern of indicators is lit, a fault is pres- ent. The chart next to the indicators identifies the fault’s exact nature. Since any wiring fault presents a potentially serious safety hazard, the assistance of a qualified electrician should be obtained in cor- recting the problem.
ON or OFF
SEQUENCING
The method of initiating an ON or OFF sequence depends on whether the unit is to be controlled locally or remotely. If remotely, it further depends on the type of switch or switches used (momentary or maintained).
LOCAL CONTROL
For local control, an ON sequence is initiated by turning the key switch to the ON position, and an OFF sequence by turning the key switch to REM or OFF position. The START ON-OFF SEQUENCE pushbutton is not normally used in local operation.
NOTE: If the PS-PRO is to be used under local control only, and a jumper is installed on JMP1, and no switch is connected to the PS-PRO’s terminal strip,
