Features: 1. Check the error of active and reactive of watt-hour meter at the same time, and meanwhile check the error of main and secondary meter in the same circuit. 2. Display the electrical constants such as: voltage, current, power, power factor, phase and frequency and etc. 3. Measure ct ratio, wave form display. 4. Measure 2-51 voltage and current harmonics. 5. Judge wrong wiring. 6. Measure the baud rate for multi-function energy meter and meter number reading. ¦ct secondary loading function. 8. Automatically correct the clamp error.
