Furman PSPROII Power Sequencer

FURMAN PSPROII Details ^top

The latest generation of Furman’s legendary power conditioner / sequencer, featuring Furman’s exclusive Series Mode Protection (SMP) with Linear Filtering Technology (LiFT).

DESCRIPTION
The most widely recognized and trusted name in AC power conditioning is proud to introduce the PS-PRO II power conditioner / sequencer, featuring Furman’s revolutionary SMP technology. Furman’s Series Mode Protection (SMP) circuit also features our exclusive Linear Filter Technology (LiFT). Together, these technologies comprise what is, without question, the world’s most advanced and comprehensive transient voltage surge suppressor.

SMP (Series Mode Protection)
Furman’s maintenance-free SMP surge suppression virtually eliminates service calls. Traditional surge suppression circuits “sacrifi ce” themselves when exposed to multiple transient voltage spikes, requiring the dismantling of your system, and repair of your surge suppressor. With Furman’s SMP, however, damaging transient voltages are safely absorbed, clamped and dissipated. No sacrificed parts, no service calls, no down time. Unique to Furman’s SMP is its unparalleled clamping voltage.

Unlike some seriesmode suppressors, Furman’s maintenance free feature is not at the expense of potential equipment failure! While other designs offer clamping voltages that are well above 300Vpk, Furman’s SMP clamps at 188Vpk, 133 VAC RMS even when tested with multiple 6000Vpk - 3000 amp surges! This unprecedented level of protection is only available with Furman’s SMP technology. Additionally,Furman’s trusted over-voltage circuitry protects against all too frequent accidental connections to 208 or 240VAC, by shutting off the incoming power until the over voltage condition is corrected.

LiFT (Linear Filtering Technology)
Unfortunately, traditional AC fi lter - Conditioners have been designed for unrealistic laboratory conditions. Prior technologies, whether multiple pole fi lter or conventional series mode, could actually harm audio and video performance more than they help, due to the resonant peaking of their antiquated, non-linear designs. Under certain conditions, these designs can actually add more than 10 dB of noise to the incoming AC line! Worse still, lost digital data, the need to re-boot digital pre-sets, or destroyed digital converters are frequently caused by excessive voltage spikes and AC noise contaminating the equipment ground. Furman’s SMP with LiFT takes another approach, ensuring optimal performance through linear fi ltering and no leakage to ground.

FEATURES
The PS-PRO II Power Conditioner/Sequencers is capable of powering up a rack full of equipment in a 3- step delayed sequence. The sequence is reversed for power-down. The sequence can be initiated with either momentary or maintained switches, locally or remotely. A duplex outlet is provided for each delay step. A front panel screwdriver adjustment sets the delay time for the PS-PRO II. The PS-PRO II also features a locking switch with a removable key for maximum security. One or more Furman PS-PRO II’s may be installed in remote locations and operated via low-voltage wiring. The PS-PRO II includes a rear mounted BNC jack which accepts any standard (12VAC, 0.5A) gooseneck lamp for rear rack illumination, as well as a front panel switch which controls the gooseneck’s operation.

PS-REL Relay Accessory:
Allows a PS-PRO II to be turned on by sensing AC at a preamp’s switched outlet; also allows daisy-chaining for 6 or more delayed outlet groups

PS-PRO II FEATURES:

Series Mode Protection (SMP) with extreme voltage shutdown
Linear Filtering Technology (LiFT) with zero ground contamination
Six sequenced rear panel outlets (in 3 groups), two switched rear panel outlets, and one front panel switched outlet
Momentary and Maintained sequencing via rear panel terminal block or front panel switch
BNC connector on the rear panel allows you to attach any standard 12V gooseneck lamp to illuminate the rear of your rack
20 amp rating
Three year limited warranty

FURMAN PSPROII Specs ^top

Current rating:
20 amps ("E" versions 16 amps)

Operating Voltage:

90 to 140 VAC (“E” versions 180 to 280 VAC)

Over Voltage Shutdown:
140 VAC typically (“E” versions 280 VAC typically)

Spike Protection Modes:
Line to neutral, zero ground leakage

Spike Clamping Voltage
188 VAC peak @ 3,000 Amps, 133 VAC RMS (tested to UL-1449 and USA / CIDA A-1-1, 6,000 VAC @ 3,000 Amps)

Response time:
1 nanosecond

Maximum surge current:
6,500 amps

Noise attenuation:
10 dB @ 10 kHz, 40 dB @ 100 kHz, 100 dB @ 10 MHz
Linear attenuation curve from 0.05 - 100 Ohms line impedance

Mechanical: Dimensions:
Dimensions: 1.75” H x 19” W x 10.5” D. Weight: 11 lbs (5 kg). Construction: Steel chassis, .125” brushed and black anodized aluminum front panel; glass epoxy printed circuit boards

Power consumption:
6 watts

Safety Agency Listings:
CE, NRTL-C

Patent number:
CA 1332074 (4,901,183)

FURMAN PSPROII Documentation ^top

Click here for Datasheet (pdf)

FURMAN PSPROII WhyFurman ^top

Who needs a Furman Conditioner?
SMP Circuit Info