The DDSJ5558 type single-phase electronic watt-hour meter adopt exclusive use LSI,the device typifying few periphery component,simple structure,high reliability,low power consumption,long life etc,is suitable for the single-phaseAC active electric energy with rated frequency of 50HZ;the performance is in conformity with the techmical requirements for single-phase electronic watt-hour meter stipulated in GB/T17215.321-2008Class1and2StaticAC Active Watt-hour Meter standard
function and feature
1.Measure active electric energy ,do not need calibrate for long-term operation
2.Long servicelife,accessible 10 years
3.Sampling current at the same time between phase line and middle line,use larger as validsampling,abstraction-of-electricity prevention one fire one ground thoroughly
4.Adopt exclusive use LSI and SMT surface fixing technique,having advance technology  and dimple structure
5.Adopt the ;atest overses electric energy special integration circuit,greatly improved dynamic working range of meter
6.Have good mistake linearity in the range of 5%Ib~Imax
7.Adopt high reliablity and long life electronic component,so the meter assume feature of high reliability and long life
8.Low self power consumption,mighty overload