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.
7. PT、CT secondary loading function.
8. Automatically correct the Clamp error.
9. U disk upgrading system, download the calibration data to achieve paperless office.
10. Battery power supply or wide voltage (57.7V-480V) online power supply/charging.
11. Accuracy: class 0.05, class 0.1.
