Furman Sound PL-PRO D II User Manual download pdf (Page 7)

SERIES II 20 AMP POWER CONDITIONERS

(1) If only the single leftmost (beneath the

90V mark – 180V for E version) 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’s outlets

will remain unless the incoming

voltage rises above the Extreme

Voltage Shutdown cutoff voltage

(135 - 140 volts / 260 – 265 volts E

version / 120 – 125 volts J version).

(3) If none of the LED’s on the voltmeter

are lit, and the Extreme Voltages LED

indicator is illuminated, then the PL-

Plus II has shut down power to its

outlets because the input voltage is in

a range considered extreme (in excess

of 135 volts - 260 volts E version /

120 volts J version).

Digital Voltmeter:

(PL-PRO D II and PM-PRO II only)

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. No adjustment should be

necessary on these units.

Digital Current Meter: (PM-PRO II only)

Furman’s laboratory precision AC digital

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current meter continually measures the total

circuit AC load, within a typical tolerance of +/-

0.5 amp. Because these meters feature true

R.M.S. technology, the current readings are

accurate regardless of load conditions (capacitive,

inductive or resistive).

NOTE: The PL-PRO II, PL-PRO D II, and PM-

PRO D II, do 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

benet from the use of one of Furman’s AC Line

Voltage Regulators.

On/Off Circuit Breaker:

This 20 amp capacity magnetic circuit breaker

switch is specically designed to stand up to

the enormous high inrush current demands of

many Power Ampliers. Additionally, the switch

is shielded from accidental power disconnection

with a hinged cover. (E-versions feature 16 amp

capacity)

Extreme Voltage Shutdown Indicator:

This LED is normally off. It monitors a hazard

common in the entertainment industry: wiring

faults – for example, accidental connection

to 220VAC where 120VAC is expected, or an

open neutral from a 208 or 240VAC feed. The

Series II SMP+ 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

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