Furman PL-PRO C - Rear Panel Operation and Indicators; Power Switch and Circuit Breaker; Voltage and Protection Indicators; USB Charger and Outlet Details

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PL-PRO C OWNER’S MANUAL
lamps are not in use, we recommend turning the dimmer fully counterclockwise, or pushing the knob to the o seng to maximize
the life of the LED’s. Whether the light tubes are fully extended or ush with the front panel, there will be no appreciable heat regard-
less of the dimmer seng due to the eciency of our full light spectrum LED’s.
All Furman Classic Series Condioners feature a rear rack BNC socket which will accept any 12 VAC (0.5A) gooseneck lamp assembly
(such as the Furman GN-LED or GN-I). Simply slide the BNC plug over the socket and rotate clockwise unl the connector snaps into
the locked posion. The rear rack lamp can be powered on or o with the rear light switch which is adjacent to the BNC connector.
ULTRA-LOW RESISTANCE MAGNETIC POWER SWITCH / CIRCUIT BREAKER:
Furman’s Classic Series 20 amp capacity power switch is specically designed to stand up to the enormous high in-rush current de-
mands of many power ampliers. Addionally, Furman magnec circuit breakers are not sensive to temperature, and will not raise
the AC impedance as do many, less costly thermal breaker. If the 20 amp RMS current capacity of the PL-PRO C is exceeded, the spring
tensioned-switch will immediately switch to the o posion. You will need to switch the toggle back to the on posion once the prob-
lem is corrected (typically by eliminang one component, or unl the RMS current does not exceed 20 amps or 2400 was).
EXTREME VOLTAGE SHUTDOWN (EVS) INDICATOR:
The Extreme Voltage LED Indicator is normally o. It is located to the le of the power switch, though during normal use it will NOT be
lit.
The Extreme Voltage indicator monitors a hazard common in the entertainment, remote broadcast, and AV contractor industries: wir-
ing faults. For example: accidental connecon to 208VAC where 120VAC is expected, or an open series neutral from a 208 to 240VAC
electrical service. The Furman EVS circuit senses voltages that are so high that operaon would be impossible and shuts the power
down before damage can occur.
Upon inially applying power to the PL-PRO C, the Extreme Voltage indicator will illuminate to a bright red if the input voltage is above
the extreme voltage cuto. When this occurs, power will not be applied to the PL-PRO C’s outlets. If the unit has been operang with
an acceptable input voltage and subsequently that voltage exceeds 140V, it will shut o power to the outlets and the Extreme Voltage
LED will light.
NOTE: If the mains power is above the high cuto voltage and has caused the EVS circuit to remove power from the PL-PRO C’s out-
lets, it cannot restore power without the operator manually turning the unit o, then on again. Avoid turning the unit back on without
rst checking the source of the problem and changing the AC source (if necessary).
PROTECTION OK INDICATOR:
Although the Furman SMP circuit assures virtually maintenance-free protecon from transient voltage spikes and surges, nature has a
way of occasionally creang electrical forces that are beyond the capabilies of ANY surge suppression device to absorb without some
degree of damage (such as a direct lightning hit in an outdoor applicaon). In the rare instance that this occurs, the green “Protecon
OK” LED indicator (located to the right of the retractable light tubes), will not be illuminated. If this happens, some level of protecon
from voltage surges will remain, but the PL-PRO C’s clamping voltage rang will be compromised and the unit must be returned to Fur-
man for service.
NOTE: Furman’s Classic Series power condioners do not compensate for high or low AC line voltage. If you frequently move your
rack to dierent locaons, derive power from generators, use very long extension cords, travel internaonally, or are in an area prone
to brownouts, you may benet from the use of one of Furman’s AC Voltage Regulators.
MULTI-SEGMENT LED VOLT METER:
This three-color, 20-LED bar-graph is an accurate, self-checking AC voltmeter that connually measures input AC voltage. The meter
reads from 90 to 128 volts in 2 volt increments. The opmal range voltages are indicated in green, with moderate and extremely high
or low voltages in yellow and red, respecvely. The voltmeter provides three special ashing paerns to indicate abnormal condions:
(1) If only the single le-most (beneath the 90V mark) LED ashes, the input voltage is marginally low.
(2) If all of the LED’s on the voltmeter ash, the input voltage is marginally high. Power to the PL-PRO C’s outlets will remain unless
the incoming voltage rises above the Extreme Voltage Shutdown (EVS) cuto voltage (140 volts).
(3) If none of the LED’s on the voltmeter are lit, and the Extreme Voltages LED indicator is illuminated, then the PL-PRO C has shut
down power to its outlets because the input voltage is in a range considered extreme (in excess of 140 volts).
USB CHARGER:
The Furman PL-PRO C’s USB charger provides an easy way to recharge many popular electronic accessories as well as cellular com-