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USER MANUAL P2400 IT Furman

P-2400 IT POWER CONDITIONER

CONDITIONNEUR D'ALIMENTATION P-2400 IT / P-2400 IT ACONDICIONADOR DE ENERGía

PRESTIGE SERIES OWNER'S MANUAL

SERIE PRESTIGE GUIDE DE L'UTILISATEUR /SERIE PRESTIGE MANUAL DEL PROPIETARIO

FURMAN

P-2400 IT OWNER'S MANUAL

P-2400 IT GUIDE DE L'UTILISATEUR

P-2400 IT MANUAL DEL PROPIETARIO

FURMAN P-2400 IT FEATURES

• Ultra-low noise balanced isolation transformer provides over 80 dB of common mode noise reduction from 20 Hz - 20 kHz, assuring the lowest noise floor possible for today's sensitive recording equipment
• Toroidal transformer assures the magnetic field is contained, allowing any component to operate in close proximity without inducing noise

Ground Fault (GFCI) protected outlets with Ground Lift switch to eliminate AC hum and ground induced noise

• SMP (Series Multi-Stage Protection) with EVS (Extreme Voltage Shutdown)

LiFT (Linear Filtering Technology) with zero ground contamination

Switchable/Dimmable true RMS current and laboratory precise digital voltage meter

• 20 amp (2400 watt) capacity with 10 ultra-low resistance isolated-ground Hubbell AC outlets, plus two GFCI front panel convenience outlets

Front panel USB connector charges most portable media devices and cell phones

Five year limited warranty

INTRODUCTION

Thank you for purchasing a Furman Prestige Series P-2400 IT Balanced Power Conditioner, and congratulations on your choice. The P-2400 IT features a specially wound and shielded toroidal balanced isolation transformer specifically designed to reduce hum pickup by sensitive equipment when ultra-low-noise is a must. Additionally, Furman's revolutionary Series Multi-stage Protection (SMP) circuit, as well as our exclusive Linear Filtering Technology (LiFT) are combined to ensure what our customers have grown to expect from Furman - uncompromised surge protection and power purification. The Furman P-2400 IT has been precisely engineered to more than meet the critical demands of audio/video professionals, contractors, broadcasters, and musicians alike.

DESCRIPTION

Designed for the most critical, ultra-low noise installations, the P-2400 IT can supply 20 amps of balanced AC power for recording studios, broadcast stations, video production facilities, or any environment requiring a studio quality signal to noise ratio.

To understand the incredible need for clean noise-free AC power, it's important to note that today's sophisticated studio equipment features tremendous dynamic range. Most of the signal content that defines high resolution audio (such as harmonics, instrument timbre, high frequency extension, spatial cues, and fast transient attacks), are inherently low in signal level. Further, when AC noise is induced into audio processors, pre-amplifiers, microphones, powered monitors, computers, and mixing consoles, the all important low level signals are distorted or masked!

Once signals are masked there is no way to retrieve the lost content. Advanced AC filtering is critical when audio or video resolution is at stake. With Furman's P-2400 IT, you will hear audio content and see video images as they were meant to be - pristine.

SMP (Series Multi-Stage Protection) with EVS (Extreme Voltage Shutdown)

Furman's SMP surge suppression virtually eliminates service calls and costly "down time". Traditional surge suppression circuits sacrifice themselves when exposed to multiple transient voltage spikes, requiring the dismantling of your system and repair of your surge suppressor. Not so with Furman's SMP. With SMP, damaging transient voltages are safely absorbed, clamped and dissipated. Your connected equipment is protected, while your Furman protects itself!

Unique to Furman's SMP is its unparalleled clamping voltage. While other designs offer clamping voltages that are well above 330 Vpk, Furman's SMP clamps at 188 Vpk, (133 VAC RMS) even when tested with multiple 6000 Vpk - 3000 amp surges! This unprecedented level of protection is only available with Furman's SMP technology. Additionally, Furman's trusted over-voltage (EVS) circuitry protects against all too frequent accidental connections to 208 or 240 VAC, or intermittent neutral. It does so by shutting off the incoming power until the over voltage condition is corrected and the power switch is reset.

LiFT (Linear Filtering Technology)

Unfortunately, traditional AC filter - conditioners have been designed for unrealistic laboratory conditions. Prior technologies, whether multiple pole filters 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 a different approach, ensuring optimal performance through linear filtering and no contamination or leakage to ground.

Additional Features

The P-2400 IT offers a switchable laboratory precision digital meter that displays incoming voltage in 1-volt steps or true RMS current in 0.1 amp steps. The voltmeter's accuracy is ± 1.5 volts and features a tri-color voltage range indicator. This informs the user whether voltage is in or out of a safe range, even from a distance too great to accurately read the displayed voltage.

SAFETY INFORMATION

To obtain best results from your Furman Prestige Series Power Conditioner, please read this manual carefully before using.

WARNING

To reduce the risk of electrical shock, do not expose this equipment to rain or moisture. Dangerous high voltages are present inside the enclosure. Do not remove the cover. Refer servicing to qualified personnel only.

IMPORTANT SAFETY INSTRUCTIONS

(Pleasesreadpriortoinstallation)

1. Please read and observe all safety and operating instructions before installing your Furman Prestige Series power conditioner. Retain these instructions for future reference.
2. Your Prestige Series conditioner should not be used near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool.
3. Do not place your Prestige Series conditioner near high heat sources such as radiators, heat registers, stoves, or other appliances that produce extreme heat.
4. The Furman P-2400 IT should only be connected to a 120 VAC, 60Hz, 20 amp grounded electrical outlet. Do not defeat the ground or change polarization of the power plug.
5. Route the AC power cord and other cables so that they are not likely to be walked on, tripped over, or stressed. Pay particular attention to the condition of the cords and cables at the plugs, and the point where they exit your Furman conditioner. To prevent risk of fire or injury, damaged cords and cables should be replaced immediately.

6. Clean your Furman conditioner with a damp cloth only. Do not use solvents or abrasive cleaners. Never pour liquid on or into the unit.

7. Your Furman conditioner should be serviced by qualified service personnel when:

8. The power supply cord or the plug has been frayed, kinked, or cut.

9. Objects have fallen or liquid has spilled into the unit.
10. The unit has been exposed to rain or extreme moisture.
11. The unit does not appear to operate normally.
12. The "Protection OK" indicator is not lit.

13. The unit has been dropped, or the enclosure has been damaged.

14. Your Furman conditioner requires that a safety ground be present for proper operation.

15. Do not attempt to service your Furman conditioner beyond what is described in this manual. All other servicing should be referred to qualified service personnel.

NOTE: Furman's P-2400 IT does not compensate for high or low AC line voltage. If you frequently move your rack to different locations, derive power from generators, use excessively 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 Line Voltage Regulators.

INSTALLATION

The power source into which the P-2400 IT is connected must be adequate for use at 20 amps. We recommend either a 30 amp circuit, wired with 10 gauge wiring, when continuous operation near 20 amps is anticipated, or a dedicated 20 amp circuit. Consult a qualified electrician when in doubt.

The P-2400 IT is designed for mounting in a standard 19 inch equipment rack. Because of its weight, the best position is the bottom slot of the rack. Its toroidal transformer minimizes magnetic leakage, but nevertheless, due to its high capacity, it may radiate a

small magnetic field. Therefore, we recommend that it not be positioned adjacent to sensitive, low level signal processors, especially mic preamps, mixers, tape recorders, etc. Power amps may be more suitable "rack neighbors."

The maximum benefit derived from balanced power is when it powers ALL equipment in an installation. Therefore, try to position the P-2400 IT in a central location so its power can be easily distributed everywhere it's needed. If the total power consumption of all equipment exceeds 20 amps at 120 volts, delete high level or mechanical devices first (such as power amps, motors). If possible, physically isolate any equipment that has to be powered with conventional power through a different circuit, and route AC cords away from all other cabling. The balanced power produced by the P-2400 IT is restricted to use with electronic equipment only. Balanced power may not be used for lighting equipment, and access must be limited to use by qualified personnel only.

Rear Rack Mounting:

If you are installing the P-2400 IT in a rack that has rear as well as front mounting rails, you may easily secure it to the rear of your rack. Simply remove the securing screws from the side and front portions of the P-2400 IT's adjustable rear rack ear and reinforcement side plate (located on either chassis side), reverse it and re-attach to the P-2400 IT chassis. (See Figure 1.a, page 12)

OPERATION

Switchable 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.

Ground Fault Interruption (GFCI):

The Ground Fault Circuit Interruption (GFCI) on the P-2400 IT's rear panel is a special kind of circuit breaker that detects an imbalance in the current flowing into the two hot legs. The "missing" current is presumed to be flowing through the ground conductor (the round pin on an AC outlet).

Ground current often indicates a dangerous partial or full short circuit. If an imbalance is detected, the GFCI trips and cuts off power not only to itself, but to all the P-2400 IT outlets. If this occurs, the button on the GFCI marked "R" (Reset) will pop out. To restore operation, correct the fault and push the button in. You may test the proper operation of the GFCI at any time by simulating a ground fault by pushing the button marked "T" (Test). If the GFCI is working properly, this will cause the "R" button to pop out and cut off power. You can restore operation after a test by pushing in the "R" button.

Ground Lift Switch:

Ground loops are fairly common in many installations because AC cords with safety grounds are rarely connected to a single low-resistance bus bar. When there is a significant difference in voltage between a source component's neutral and ground and a load component's neutral and ground, the buzz and hum associated with this type of ground current noise (or loop) may occur. Additionally, many AC noise contaminants may be present on the AC ground wire. For these reasons, Furman's P-2400 IT contains a Ground Lift Switch.

This switch floats the output ground, eliminating ground noise and also, in many instances, the hum and buzz associated with ground loops. The P-2400 IT's GFCI protection circuit assures that even when utilizing the power conditioner in this mode, operation is safe and secure. In fact, even if a connected component has a catastrophic failure, less than 5 milliamps current imbalance from line to ground or neutral to ground will instantly disconnect the voltage output from the P-2400 IT. This is far safer than any conventional 120 VAC outlet and it has numerous noise reducing advantages.

However, ground wiring in any studio, broadcast or club environment can be complex. Because all 14 outlets of the P-2400 IT are in parallel, it is still possible to have a ground loop if the two offending products are simultaneously connected to a single P-2400 IT. Use of multiple P-2400 IT's may be necessary in extreme cases. Also, for studio and broadcast use, separating all digital processing products from all analog devices is highly recommended and can be accomplished by separating these components into the two isolated banks, or for the very best performance, using two P-2400 IT's.

In the end, it is best to experiment with the Ground Lift Switch. Whichever position yields the least noise or clearest audio / video recording or reproduction, is the position that should be utilized.

Ultra-Low Resistance Magnetic Power Switch / Circuit Breaker:

Furman's Prestige Series 20 amp capacity power switch is specifically designed to stand up to the enormous high in-rush current demands of many power amplifiers. Additionally, Furman magnetic circuit breakers are not sensitive to temperature, nor do they raise the AC impedance as many less costly thermal breakers will do. If the 20 amp RMS current capacity of the P-2400 IT is exceeded, the spring tensioned switch will immediately switch to the off position. You will need to switch the toggle back to the on position once the problem is corrected (typically by eliminating one component, or until the RMS current does not exceed 20 amps or 2400 watts).

Extreme Voltage Shutdown 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 Shutdown (EVS) 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 the P-2400 IT, the Extreme Voltage indicator will illuminate to a bright red if the input voltage is above the extreme voltage cutoff. When this occurs, power will not be applied to the outlets. If the unit has been operating with an acceptable input voltage and subsequently that voltage exceeds 140V, it will shut off power to the outlets and the Extreme Voltage LED will light.

NOTE: If the mains power is above the high cutoff voltage and has caused the EVS circuit to remove power from the 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 perhaps changing the AC source.

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 TVSS 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 display), will no longer illuminate. If this happens, some level of protection from voltage surges will remain, but the Furman's clamping voltage rating will be compromised. The unit must be returned to Furman.

USB Charger:

The Furman P-2400 IT's USB charger provides an easy way to recharge many popular electronic accessories as well as cellular communication devices by simply plugging the re-charge cord into the front panel socket. Please note: because there are currently many standards for USB, some devices may not be compatible with our charger.

How Balanced AC Power Works:

In much the same way that balanced audio lines can reduce the pickup of hum and other types of electromagnetic interference (EMI), the use of balanced AC power lines in sensitive audio, video, or computer installations can make an enormous difference in system noise and signal integrity. But power distribution in North America, unfortunately, is not balanced.

The distribution standards currently in use were derived from practices established over a century

ago, when electric power use was limited to lighting and motors, long before any AC noise sensitive applications existed. The emphasis then was on convenience and safety, but not noise cancellation.

The result was a three-wire distribution scheme in which 120V branch circuits have a hot wire and a neutral wire, with the neutral tied to a third wire connected for safety to an earth ground. The third wire does not carry any current unless there is a fault. This unbalanced scheme can create hum in audio circuits for two main reasons. First, the current flowing in the hot wire induces hum in any other nearby wires, which may carry vulnerable low-level audio or video signals. Second, because the impedance of chassis and cable shielding to ground is always greater than zero ohms, ground current flowing from power supply capacitors and from EMI pickup causes a voltage drop at 60Hz and its harmonics. This low level noise becomes part of the audio signals.

With a center-tapped isolation transformer, the AC power feeding a studio can be balanced at its source. The current-carrying wires then are no longer "hot" (120V) and "neutral" (0V), but two 60V lines of opposite polarity (referenced to ground connected to the center tap), whose difference is 120V.

This type of power, when run around a room, does not induce hum into nearby audio wiring because the two conductors induce equal and opposite voltages that cancel each other. Similarly, ground currents are all but eliminated by the same common-mode cancellation effect. No longer is it necessary to adopt cumbersome and expensive star-ground systems or use massive bus bars or heavy ground rods. Further, with features such as our center tap ground lift, ground induced noise may be reduced even further.

Of course Balanced AC Power is only the beginning of a system free of AC noise. Asymmetrical noise, or what is called "differential mode," is responsible for well over half the noise present in today's AC lines. For this reason we employ our exclusive Linear Filtering Technology (LiFT). This assures that your audio, video, or computer signals are as pure and uncorrupted as possible.

TROUBLESHOOTING

1.) 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 unit has been subjected to a sustained voltage in excess of 400 Volts.

Action Needed: Plug the Furman conditioner into an AC receptacle where a nominal 120 VAC is present. If the problem persists, the protection circuit may be damaged, and require factory service.

2.) Symptom: No power to the AC outlets, "Protection OK" indicator is lit.

Possible Cause: Either the GFCI test button has been tripped (such as in transport or after shipping), or; there's an excess of 5mA of ground leakage to one of the connected components.

Action Needed: Depress the "reset" button on the rear panel's GFCI outlet. If the button pops out immediately when the unit is energized, there may be an offending product that needs to be removed or possibly repaired.

3.) Symptom: Extreme Voltage (EVS) indicator lit.

Possible Cause: Input voltage is above 140 volts causing power to the unit's outlets to be shut down. Additionally, if the voltage is below 85 - 90 volts at turn on, the unit will not allow AC voltage to reach the outlets.

Action Needed: Correct the line voltage, and then turn the Furman conditioner on. If the voltage present is well below 114 VAC, or above 126 VAC, consider installing a Furman voltage regulator.

SERVICE

Before returning any equipment for repair, please be sure that it is adequately packed and cushioned against damage in shipment, and that it is insured. We suggest that you save the original packaging and use it to ship the product for servicing. Also, please enclose a note giving your name, address, phone number and a description of the problem.

NOTE: All equipment being returned for repair must have a Return Authorization (RA) number. To get an RA number, please call the Furman Service Department: [phone] (you may also e-mail: [e-mail]). Please display your RA number prominently on the front of all packages.

5 YEAR LIMITED WARRANTY

SAVE YOUR SALES RECEIPT! The receipt is your proof of purchase and confirms the product was purchased at an authorized Furman dealer. It will need to be submitted to Furman in order to process any warranty claims.

Furman, a brand of Panamax Inc., warrants its P-2400 IT (the "Product") as follows:

Furman warrants to the original purchaser of the product that the product sold hereunder will be free from defects in material and workmanship for a period of five years from the date of purchase. If the product does not conform to this Limited Warranty during the warranty period (as herein above specified), purchaser shall notify Furman of the claimed defects by calling 707-763-1010 or via email

([e-mail]). If the defects are of such type and nature as to be covered by this warranty, Furman shall authorize purchaser to return the product to Furman headquarters. Warranty claims MUST be accompanied by a copy of the original purchase invoice or receipt showing the purchase date. Shipping charges to Furman headquarters must be prepaid by the purchaser of the product. Furman shall, at its own expense, furnish a replacement product or, at Furman's option, repair the defective product. Return shipping charges back to purchaser will be paid by Furman.

THE FOREGOING IS IN LIEU OF ALL OTHER WARRANTYES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

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 shall be cancelable by Furman at its sole discretion if the product is modified in any way without written authorization from Furman or Panamax Inc. This warranty also does not apply to products upon which repairs have been affected or attempted by persons other than pursuant to written authorization by Furman or Panamax Inc.

THIS WARRANTY IS EXCLUSIVE. The sole and exclusive obligation of Furman shall be to repair or replace the defective product in the manner and for the period provided above. Furman shall not have any other obligation with respect to the products or any part thereof, whether based on contract, tort, strict liability or otherwise. Under no circumstances, whether based on this Limited Warranty or otherwise, shall Furman be liable for incidental, special, or consequential damages. This Limited Warranty states the entire obligation of Furman with respect to the product. If any part of this Limited Warranty is determined to be void or illegal, the remainder shall remain in full force and effect.

SPECIFICATIONS

MAXIMUM OUTPUT CURRENT: 20 AMPS

LINE CORD: 12AWG X 3, 10FT LONG, NEMA 5-20 PLUG

OPERATING VOLTAGE: 90 TO 139 VAC, 60 HZ

OVER VOLTAGE SHUTDOWN: 140 VAC NOMINAL

SPIKE PROTECTION MODES: LINE TO NEUTRAL, ZERO GROUND LEAKAGE

SPIKE CLAMPING VOLTAGE: 188 VAC PEAK @ 3,000 AMPS

RESPONSE TIME: 1 NANOSECOND

MAXIMUM SURGE CURRENT: 6,500 AMPS

NOISE ATTENUATION (TRANSVERSE MODE): 10 DB @ 10KHZ, 40 DB @ 100 KHZ, 50 DB @ 500KHZ

NOISE ATTENUATION (COMMON MODE): 80 DB @ 20 KHZ, 40 DB @ 20 KHZ TO 1MHZ

POWER CONSUMPTION: 26 WATTS FOR DISPLAY AND CONTROL CIRCUITS

RECEPTACLES: 10 ULTRA-LOW RESISTANCE ISOLATED-GROUND HUBBELL AC OUTLETS, PLUS TWO GFCI FRONT PANEL OUTLETS

DIMENSIONS: 5.25'' H X 19" W X 14" D (133MM H X 483MM W X 356MM D)

WEIGHT:90LBS(41KG)

SAFETYAGENCY:NRTL-C

WARRANTY: 5 YEARS

P-2400 IT FRONT PANEL

P-2400 IT REAR PANEL

REAR RACK EAR MOUNTING (Figure 1.a)

Remove the securing screws from the side and front portions of the P-2400 IT's adjustable rear rack ear and reinforcement side plate (located on either chassis side).

Reverse the rack ears and re-attach to the P-2400 IT chassis (as shown here).

NOTES:

CHARACTERISTIQUES DU P-2400 IT DE FURMAN

ATTENUATION DU BRUIT (MODE TRANVERSAL): 10 dB @ 10kHz, 40 dB @ 100 KHz, 50 dB @ 500kHz

ATTENUATION DU BRUIT (MODE COMMUN) : 80 dB @ 20 kHz, 40 dB @ 20 kHz to 1MHz

DIMENSIONS : 19 po (L) x 14,0 po (P) x 5,25 po (H) (133mm H X 483mm W X 356mm D)

POIDS: 90 lb (41 kg.)

AGENCE DE SURETE: NRTL-C

P-2400 IT PANNEAU AVANT
P-2400 IT ARRIÈRE PANNEAU

SUPPORT DE CHASSIS ARRIÈRE (Figure 1.a)