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Unitariff meters
 PSCH-3ÀR.05.2Ì PURPOSE AND FIELD OF APPLICATION The meter is intended for accounting of active and reactive electric energy of direct connection in three-phase, three- or four-wire power circuits of a.c. with the frequency of 50 Hz (of the forward direction).
The meters can be used either independently or as a component of any automated information-measuring systems for commercial energy accounting (AIISKUE). NORMATIVE AND LEGAL BACKING IEC 62052-11:2003 TECHNICAL FEATURES - A liquid-crystal display or a two electrical and mechanical reading devices indicate the amount of the consumed active and reactive electrical energy.
- Two telemetric outputs: one for each kind of energy.
- LED indication of the current in the load circuit: the more the load, the more often the LED blinks.
- Communication interface - optical interface (PSCH-3ÀR.05Ì.121).
TECHNICAL DATA Quantity | Value | Nominal voltage (Unom), V | 3õ(120-230)/(208-400) | Nominal current (Inom), À | 5 | Maximum current, À | 60 or 100 | Accuracy class when measuring active (reactive) energy | 1,0 (1,0) | Network freqency, Hz | 45-65 | Sensitivity in each phase, À | 0,0125 (Inom =5À) | Power consumed by every voltage circuit at nominal voltage: | active, W | not more than 0,8 | total, V·À | not more than 1 | Total power consumed by every serial meter’s circuit at nominal current and nominal frequency, V·À | not more than 0,1 | Telemetric output transmission ratio, pulses/kwh: | in the main mode | 500 | in calibration mode | 5000 | Working temperature range, °Ñ | from – 40 tî +55 | Recalibration interval, years | 16 | Average service life till overhaul, years | 30 | Mass, kg | not more than 1,3 | Measurements, mm | 310õ170õ70 |
MODIFICATIONS PSCH-3ÀR.05.2M modifications | Communication interface | Indication type | Nominal (maximum) current, A | PSCH-3ÀR.05.2Ì.121 | optical interface | LCD | 5(60) | PSCH-3ÀR.05.2Ì.121.1 | optical interface | LCD | 5(100) | PSCH-3ÀR.05.2Ì.301 | - | two electrical and mechanical reading devices | 5(60) | PSCH-3ÀR.05.2Ì.301.1 | - | two electrical and mechanical reading devices | 5(100) |
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