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GPRS Three Phase Multifunction Electronic Meter ( energy meter , GPRS meter ) The product conforms to all technical requirements specified in IEC687, IEC1268 and IEC1107. The meter has the functions of measuring active / reactive energy and demand in all directions, RS485 port communication, manual and infrared waking up during power break and load record.Functions: 1) Active and reactive energy measurement 2) Energy consumption record of every month 3) Max. demand record 4) Multi-tariff energy measurement 5) Voltage loss record 6) Bypass current record 7) Over voltage record 8) Demand load curve record 9) IEC1107 infrared communication 10) Single RS485 port communication 11) Reading during power break 12) Waking up during power break 13) Infrared waking up 14) Remote output 15) 1Hz second signal output 16) Data scroll display or key displayBasic parameters: Applicable standard: IEC 687, IEC 1268, IEC 1107 Accuracy class active: class 0.2s/0,5S/1.0 reactive: class 2 Reference frequency: 50Hz Potential with anti-potential logic design Starting current active: 0.001In (transformer connected) reactive: 0.003In Service life: 10 yearsTariff working parameters Clock accuracy daily error less than 0.5s (230°C ) Battery capacity >1,000mAh Data storing time after power break >10 years (using new battery)Display: LCD Communication baud rate: 300bps 9600bps Communication method direct local data exchange Communication protocol: IEC1107Specifications Three-phase four-wire: DTSD341 Three-phase three-wire: DSSD331 Reference voltage: 3 x 220/380V; 3 x 57.7/100V (four-wire); 3 x 100V (three-wire) Basic (maximum) current: 3 x 1.0A, 3 x 5.0A; 3 x 1.5 (6) A, 3 x 3 (6) A; 3 x 5 (20) A, 3 x 10 (40) A, 3 x 15 (60) A, 3 x 20 (80) A, 3 x 30 (100) A