Furman PL-PLUS DMC Power Conditioner with Voltmeter/Ammeter - Manuel (Page 6)

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PL-PLUS DMC OWNER’S MANUAL
ON/OFF ROCKER SWITCH:
Furman’s Classic Series 15 amp capacity power switch is specifically designed to stand up to the enormous high inrush current
demands of many power amplifiers. When the top portion of the switch is pressed flush with the panel, power is present.
EXTREME VOLTAGE SHUTDOWN (EVS) INDICATOR:
The Extreme Voltage LED indicator is normally off. It is located within the meter lens assembly directly above the blue voltage /
current LED’s, though during normal use it will NOT be visible.
The Extreme Voltage indicator monitors a hazard common in the entertainment, remote broadcast, and AV contractor industries:
wiring faults. For example: accidental connection 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 operation would be impossible and shuts the
power down before damage can occur.
Upon initially applying power to these units, the Extreme Voltage indicator will light and a red “Extreme Voltage” label will appear at
the top of the meter lens if the input voltage is above the extreme voltage cutoff.
NOTE: If the mains power is above the high cutoff voltage and has caused the EVS circuit to remove power from the PL-PLUS DMC’s
outlets, it cannot restore power without the operator manually turning the unit off, then on again. Avoid turning the unit back on
without first 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 protection from transient voltage spikes and surges, nature has a
way of occasionally creating electrical forces that are beyond the capabilities of ANY surge suppression device to absorb without some
degree of damage (such as a direct lightning hit in an outdoor application). In the rare instance that this occurs, the green “Protection
OK” LED indicator, located at the bottom right of the meter lens assembly, will dim. If this happens, some level of protection from
voltage surges will remain, but the PL-PLUS DMC’s clamping voltage rating will be compromised and the unit must be returned to
Furman for service.
NOTE: Furman’s Classic Series power conditioners do not compensate for high or low AC line voltage. If you frequently move your
rack to different locations, derive power from generators, use very 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 Voltage Regulators.
SWITCHABLE DIGITAL VOLTAGE AND TRUE RMS CURRENT METER:
Furman’s laboratory precision AC digital voltmeter continually measures incoming voltages within a typical tolerance of +/-1.5VAC. It
should be noted that the voltage reading is incoming.
Furman’s laboratory precision True RMS digital current meter continually measures the total circuit AC load, within a typical tolerance
of +/- 0.5 amp. Because these meters feature true RMS technology, the current readings are accurate regardless of load conditions
(capacitive, inductive, or resistive). To switch between voltage and current, press the button labeled “Line Voltage/Current”. Hold this
button down for two seconds to dim the brightness of the display.
VOLTAGE RANGE INDICATOR:
This indicator is located in the lower left corner of the digital volt / amp meter lens assembly. When AC voltage is within 5 volts (+/-)
of a nominal 120VAC source, this tri-color indicator will be green (optimal). However, if the voltage is between 110 to 114VAC or
between 126 to 130VAC, the indicator will turn amber (caution - not optimal). If the incoming voltage is in an extreme range (below
110 or above 130), the indicator will turn red. This range is far from optimal, and may be potentially damaging to some equipment.
TROUBLESHOOTING
1.) Symptom: No power to the AC outlets.
Possible Cause: The circuit breaker (located on the rear panel - adjacent to the AC inlet cord) has tripped due to excessive load.
Action Needed: Unplug one piece of equipment from the Furman conditioner and push the round reset tab into the circuit breaker
bezel.
2.) Symptom: No power to the AC outlets, “Protection OK” indicator is not lit.
Possible Cause: Either the AC outlet to which your Furman conditioner is connected has no AC voltage present, or the protection
circuitry in your unit has been compromised.
Action Needed: Plug the Furman conditioner into an AC receptacle where a nominal 120 VAC is present. If the problem persists,
contact Furman for service.
3.) Symptom: Extreme Voltage (EVS) indicator lit.