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.
