The DDS type single-phase electronic watt-hour meter adopt exclusive use LSI, the device typifying new periphery component, simple structure, high reliability, low power consumption, long life etc, is suitable for the single-phase AC active electric energy with rated frequency of 50Hz.1. IEC61036: 2000, 50Hz

Measure active electric energy, no need of calibration for long-term operation;
Adopt dedication meter age chip ADE7755;
Adopt lasted electricity dedication integrated circuit including digital multiplier overseas, greatly improved dynamic working range of Meter, making 1 multiple actual overload;
Have good mistake linearity in the range of 5%lb~1max;
Few periphery component, simple structure, low consumption;
Adopt high reliability and long life electronic component, so the meter assume.