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General introduction:DSSF200/DTSF200 serial 3-phase static multi-tariff watt-hour meters are the new-model three-phase time-sharing measurement products designed and developed by Seasun Electronic Industrial Co., Ltd. The meter adopts the latest three-phase energy measuring special chips to achieve high-accuracy and high-overloading three-phase complex-rate electric energy measurement. The product with high stability, high accuracy and easy operation, is an indispensable high-tech product for power departments to carry out time-sharing electric charge and modern energy measurement management.Main technical index:1) Accuracy class: class 1.0, 2.02) Rated frequency: 50Hz3) Power consumption:a) Voltage circuit: ≤2W and 10VAb) Current circuit: ≤0.6VA4) Daily timing accuracy: ≤±0.5s (23±3oC)5) Daily timing error while power cut ≤±1.0s/d6) Power consumption while power cut: stand-by current ≤45μA (batteryvoltage is 3.6V, and 32768Hz)7) Influence upon voltage: if operating voltage changes ±20%, its stability is ingood condition8) Environmental conditions:a) Operation temperature: -20 ~ +45oCb) Limited operation temperature: -40 ~ +60oCc) Relative humidity:i) The annual average humidity: ≤75%ii) 30 days, and these days are randomly distributed in one year ≤95%iii) In other days it sometimes reaches ≤85%9) Appearance dimensions: 278 x 172 x 74mmMain functions and characteristics:1) Multi-tariff (time-sharing) electric energy measurement2) Measure the maximum demand3) Display4) Programme and data communication5) The meter has the functions of circuit display, RAM, EEPROM memory and WDTself checking6) Time switch
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