Sell three phase energy meter field calibrator

Description

1.Check the energy error of all mechanical and electronic energy meters, and can check the main and auxiliary meter in the same circuit or the active and reactive meter in the same circuit at one time;
2.Measure TA transformation ratio, display waveforms; Measure current and voltage harmonics, and support the measurement of *1 times harmonics;
3. Battery power supply or wide operating voltage(*0 to **0V), online power supply and charge;
4.  Connect to marketing system through internet