DTSY194 electronic three-phase pre-paid watt-hour meter is made by selecting imported three-phase electric power measuring chip and adopting SMT watch-glass and wave crest process. The product has the characteristics of electric stealing prevention, high accuracy, high reliability, high overload, low watt consumption, small size and light weight and may be extensively used for single-phase alternate current active electric power measurement of urban and rural residents, factory enterprises and commerce, to realize the function of electric purchase by fee prepayment.

Functions and Characteristics:

Accurate measurement of three-phase alternate current active electric power; delivery index is 30% higher than national standard. Automatic prevention of electric stealing; back active coulomb being calculated into forward active coulomb Wide range, high accuracy, long life, freedom from adjustment, freedom from maintenance. Inverse phase-sequence, broken zero line and one-phase or two-phase power cut-off can all make normal work and measurement Consuming electricity by fee payment with IC card; in-built big power magnetism-kept relay controlling switch-on and switch-off and also controlling external connected alternate current contactor of automatic air switch. One card for one household; adopting special encryption algorithm to make quadruple encryption, which has good falseness prevention nature. In the case of excess load, cut off the electricity and delay the restoration of electricity supply. Display contents are rich Triple data spare, to ensure the security and reliability of data After the electricity is stopped, the data are kept for 10 years without loss.Technical data standardGB/T172152002IEC610362000,IDT GB/T184602001 accuracy1 level2 levelreference voltage3×57.7V 3×100V 3×220V/380Vcurrent:1.5(6)A5(20)A10(40)A2(80)A15(60)A30(100)A reference frequency50Hz/60Hzoperation temperature0.8Un1.2Un ultimate operation temperature0.7Un1.9Unoperation temperature-2555 ultimate operation temperature-3065 power loss: voltage loop(per phase)≤1W,5VAcurrent loop (per phase)≤1VAIblife20yearsimpulse output: photoelectricity isolation passive output, impulse width: 80mS±5mSoutline dimensions 216×143×70mm(L×W×H) for eternal power cut-off 280×170×95mm(L×W×H) for internal power cut-off