ETA Systems

A guide to Real Power Protection

Why Buy Power Protection?

• Because AC Power is the most unpredictable part of you system design– Without AC, you system won’t work– Unregulated AC can subject your system to voltage bursts

(spikes and surges)• These can damage your system or cause it to operate incorrectly

– Incoming AC voltage can vary.• This causes your electronics to be starved from the voltage they need

to operate correctly

Why Buy Power Distribution? Continued

• AC noise will cause irritating buzz in your system– EMI (Electro-Mechanical Interference) is caused when another

device on the same circuit introduces noise. • Refrigerators, Air conditioners, etc.• The noise could even be coming from the operation of your neighbors

electronics.

– RFI (Radio Frequency Interference)

• Initial Powering up of our equipment can cause a “on rush” of power can cause a breaker or fuse to trip or damage your electronics.

How Do Problems Enter a System?

Normal ModePhase (hot) to Neutral

Should be <10 volts

Common ModeNeutral to Ground

Should be < ½ volt

What Devices Are Used To Solve Power Problems. Which Device Is The Appropriate One

To Use?

SIMPLE AS A-B-C

AC – The Surge Diverter/Filter

Example of surge diverter/noise filter function.Diverters and filters convert normal mode to common

mode.

Remember

Normal ModePhase (hot) to Neutral

Should be <10 volts

Common ModeNeutral to Ground

Should be < ½ volt

B – Isolation Transformer

Isolation transformers eliminated common mode voltage.

Transformers provide a code legal way of bonding neutral to ground.

H

N

G

H

N/G

Balanced Power Transformer

H

G

N

60 volts

60 volts

Balanced power transformers have their ground separated from phase and neutral by 60 volts. Neutral and ground cannot be bonded and common

mode voltage is not eliminated. Balanced power transformers are primarily designed to eliminate 60 Hz. hum. They are not intended for

microprocessor based electronics.

H

N

G

ABC – ETA Power Conditioner

When used with a true isolation transformer with a neutral to ground bond, surge diverters and noise filters can do their job without creating a common mode disturbance. The number of

surge diversion and filter elements is also greatly reduced.

H

N

G

H

N/G

So What Does This Mean to Digital Equipment?

• Digital Equipment is very sensitive• Digital communication is a sequence of 1’s and

0’s• The slightest variance could cause a Errors,

causing No Fault Found service calls• Digital Takes a Reference Point from Ground

– If Noise is present on Ground, the reference is corrupted and errors result.

Remember

Normal ModePhase (hot) to Neutral

Should be <10 volts

Common ModeNeutral to Ground

Should be < ½ volt

An Example of Power Line Noise

Normal Mode Noise - ~ 1.5 volts

Common Mode Noise - ~ 2 volts

Remember

Normal ModePhase (hot) to Neutral

Should be <10 volts

Common ModeNeutral to Ground

Should be < ½ volt

Normal Mode Noise - Power Line - ~ 1.5 volts

Common Mode Noise - Power Line - ~ 2 volts

Power Quality Performance of a Furman Sound PL8

Power Line Noise

Reference

Normal Mode Noise - Power Line - ~ 1.5 volts

Common Mode Noise - Power Line - ~ 2 volts

Power Quality Performance of a

Surgex SA966

Power Line Noise

Reference

Normal Mode Noise - Power Line - ~ 1.5 volts

Common Mode Noise - Power Line - ~ 2 volts

Power Quality Performance of an ETA Systems PD8

Power Line Noise Reference

Normal Mode Noise - Power Line - ~ 1.5 volts

Common Mode Noise - Power Line - ~ 2 volts

Power Quality Performance of a

Furman Sound IT1220

Power Line Noise Reference

Normal Mode Noise - Power Line - ~ 1.5 volts

Common Mode Noise - Power Line - ~ 2 volts

Power Quality Performance of an ETA Systems PCI-

2000NA

Power Line Noise Reference

Power Conditioning Products

• PCI Series• Front panel LEDs for “power on” and “no safety ground” indications • Front panel power switch/circuit breaker (PCI-400NA and larger) • NEMA plug/receptacles on North American models • IEC320 plug/receptacles on International models • Optional wall mount plate for models up to PCI-700NA • Optional rack tray for PCI-400NA and larger • UL listed • Limited five-year warranty against defects in materials and

workmanship

Quick Model Rundown

• Small PCI-065NA – .65 Amps

• Plenty in between• Large PCI-2000NA

– 20 Amps

UPS…No Not the Delivery Service

• But the UPM Series Delivers Continuous Power• Low-distortion sine wave inverter • Front-panel LED indicators for load level, battery charge

level, voltage manager mode, on battery, low battery, replace battery, overload, and rear panel receptacle status

• Front-panel test button • USB and Serial Communication Interfaces • RS232 port and optional Communications Manager

software package • User hot swappable batteries • Runtime full load/half load – 6 min./20 min.

UPM Series

Small UPM-420NA 280 Watts

Large UPM-1440NA936 Watts

Don’t Forget The Legacy

Quick RundownStandard Series Continued

• PD8– 8 Outlets

• PD8L– 8 Outlets and Retractable Lights

• PD9L– 8 Wall Wart Sized Outlets with Retractable Lights– 1 Additional Outlet on the Front

• PD11LV– 10 Outlets on the Back (2 Always On), 1 on the Front– Voltage Meter– Retractable Lights

• PD11SS– 10 Outlets on the Back, 1 on the Front– Four-Stage Power Sequencing

Quick RundownStandard Series

Basic Features

Spike and Surge Protection

EMI/RFI Filtration

15 AMP, 1800 Volt Capacity

Overload Protection

One Rack Space

Quick RundownProfessional Series

• Basic Features

– Spike and Surge Protection

– 20 AMP, 2400 Watt Capacity

– EMI/RFI Filtration

– Overload Protection

– 10’ Power Cord

– One Rack Space

Quick RundownProfessional Series

• PD11P– 11 Outlets (10 on Back (2 Always On),

1 on Front)• PD11LP

– Same As PD11P with Retractable Lights

• PD11VP– Same As PD11P with Voltage Meter

• PD11LVP– Same as PD11VP with Retractable

Lights• PD11LVSP

– Same as PD11VP with Four-Stage Sequencing

• PD11SP– 9 Outlets (8 on Back, 1 on Front)

Quick RundownSpecial Application Series

• PD66 and PD602– 140 AMP Total– Eight 20 AMP outlets– Six Circuit Breaker Switches– Two 30 AMP Hardwire Terminal Blocks– Single or Three Phase Power Up

• PD10VRS– 10 Outlets (2 Always On)– Regulates Voltage to 117 Volts– Voltage Meter– Four Stage Sequencing– 15 AMP, 1800 Volt Capacity

• PD420VS– Three Stage Power Sequencing– Voltage Meter– Unlimited Linking of Multiple Units– Four 20 AMP Circuits with Front Panel Resets– 80 AMP, 9600 Watt Capacity– Volt Meter

ETAProfessional Power Protection

REAL Power Protection!

Questions ?