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P S - 8 R   -   P O W E R   C O N D I T I O N E R / S E q u E N C E R

description

The PS-8R Power Sequencer is needed whenever 

various kinds of equipment must be powered up or 

down in groups, rather than all simultaneously. In au-

dio systems, sequenced powering is often necessary 

to allow turn-on transients from low level  

amplifiers and processors to settle down before 

any power amps are turned on, because simultane-

ous powering would result in a loud, annoying, and 

potentially destructive “pop” reaching the  

speakers. And in any large system whose com-

ponents present an inductive load to the AC 

line (including electric motors, power supplies, 

and power amplifiers of all kinds), sequenced 

powering can avoid excessive inrush currents 

that cause circuit breakers to trip even though 

the steady-state currents are not excessive.

power 

sequencing 

features

using the PS-8R is a simple and inexpen-

sive way to apply and remove power in a con-

trolled, repeatable, foolproof 3-step sequence. 

It is ideal when large installations must be 

switched by inexperienced personnel.

The PS-8R provides three outlet pairs labeled Delay 

1, Delay 2, and Delay 3, that receive power ap-

proximately 1/2, 5, and 10 seconds, respectively, 

after the front panel switch is switched to “ON.” 

When switched to “OFF,” the sequence is reversed, 

with Delay 3 losing power after approximately 1/2 

second, Delay 2 after 5 seconds, and Delay 1 after 

10 seconds. See the rear panel illustration on page 

3. The turn-on delay intervals are factory preset 

at these durations, but may be altered by means 

of an internal trimpot adjustment (see “Adjusting 

the Delay Intervals” for details). In addition to the 

features

Power-up in three delayed outlet groups

• 

Power-down reverses sequence

• 

Triple-mode varistor spike 

• 

and surge suppression

RFI / EMI filtering with multi-stage filter

• 

Power Status LED’s indicate which 

• 

outlet groups have power

Mains Wiring indicators moni-

• 

tor wiring integrity, show Nor-

mal and five kinds of faults

Rated 15 amps

• 

Remote option allows turn-on and 

• 

turn-off at a distance simply by con-

necting a momentary or maintained-

contact switch (and LED if desired)

Multiple units may be linked to 

• 

handle higher currents and/or 

more than three delay groups

Three pairs of switched out-

• 

lets on rear panel 

Three unswitched outlets 

• 

(one front, two rear)

Circuit breaker

• 

Ten foot heavy duty A.C. cord

• 

Three year limited warranty

• 

Congratulations on your purchase of a Furman PS-8R Power Sequencer, 

a well-designed, reliable, and simple to use product that will help you avoid 

many headaches involved in installing a rack full of complex equipment.

1

Summary of Contents for PS8 R II

Page 1: ...PS 8R POWER CONDITIONER sequencer Owner s Manual PS 8R POWER SEQUENCER 15A...

Page 2: ...he front panel switch is switched to ON When switched to OFF the sequence is reversed with Delay 3 losing power after approximately 1 2 second Delay 2 after 5 seconds and Delay 1 after 10 seconds See...

Page 3: ...l three modes line to neutral line to ground and neutral to ground responding in nanoseconds to clamp excessive transient voltages to safe levels There is also a sophisticated multi stage filter for b...

Page 4: ...2 are normally open and stay closed only as long as the button is pressed An on off switch of either kind may be used to actuate the PS 8R s remote operation Maintained switches are generally most co...

Page 5: ...jumper plug installed on JMP2 The PS 8R has memory it only needs a momentary signal from the remote switch to change its state from ON to OFF or OFF to ON JMP REM TO 12V OFF MOMENTARY MODE REM TO 12V...

Page 6: ...toggle all of the units ON The rocker switch on each unit s front panel will turn OFF any individual unit currently ON without affecting the other units To address the unusual hopefully rare instance...

Page 7: ...POSE Furman does not warrant against damages or defects arising out of improper use or abnormal handling of the product or against defects or damages arising from improper installation This warranty s...

Page 8: ...to 100 MHz Mechanical Dimensions 1 75 H x 19 W x 8 D Weight 6 lbs 2 7 kg Construction Steel chassis zinc chromate plating 125 brushed and black anodized aluminum front panel 3 oz copper double sided...

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