Model# GH

Watt/Watt Hour Transducer

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Detailed Model Specs

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Voltage: See Tables
Current: See Tables
Frequency Range: GH    58-62Hz    VGH     60Hz
Optional 50Hz: GH   48-52Hz    VGH    50Hz
Power Factor:  Any
Voltage:   0.1VA/phase
Current:  0.28VA/phase
Voltage (cont.):
150V Range: 175V
300V Range:  350V
600V Range:  600V
Current (cont.):5A Range: 2 X F.S.
10A Range:  2 X F.S.
20A Range: F.S.
Transient:  All Ranges
50A: 10 sec./hr.

250A: 1 sec./hr.

Dielectric Test….(Input/Output/Case): 1800Vac (RMS)

Surge:  Withstands IEEE SWC test


VGH:   + = Lagging/ – = Leading

ACCURACY:  ± 0.2% Rdg.   ±0.05% F.S.
Includes combined effects of voltage, current, load and power factor
Relay: Form A (SPST, N.O.):  120Vac, 0.5A
Contact closure duration:  200 milliseconds
Option T:   Pulse: 5V TTL Compatible Pulse
Pulse duration:  200 milliseconds
Option H:  Form C (SPDT):  120Vac, 0.1A
Contact closure duration:   200 milliseconds
Option K:  Form C (KYZ):  120Vac, 0.1A
Contact closure duration:  50% duty cycle
Analog Output Ripple: < 0.5% F.S.
Output Loading (O)
±1mAdc:  0-10K
±10Vdc:   2K min.
4-20mAdc :  0-500
Response Time (99%): <400 milliseconds
Field Adjustable Cal:  ±2% min.
Temperature Effect (-20°C to +60°C): +0.005%/°C
Operating Humidity:  0-95% non-condensing
Instrument Power (std.): 115Vac, ±15%, 50/60Hz, 7.5VA,
“-22” Option: 230Vac, ±15%, 50/60Hz, 7.5VA,
  • Integration into energy management systems, or a variety of sub-metering applications.
  • Measurement using direct-connection, potential and/or current transformers.
  • Accurate regardless of variations in voltage,current, power factor, or load.
  • Available with 1, 2, 2 1/2, or 3 element configurations. Bi-directional Watt and Watthour outputs available. (GH) Bi-directional Var and Var Hour outputs available. (VGH)
  • Accuracy maintained over wide temperature range, calibration traceable to NIST.