1. Use 7 inch 800 X 480 resolution true color TFT high-brightness liquid crystal screen, clear visible in the sun. One screen shows all measurement parameters, vector diagram, harmonic distortion and calibration parameter settings. The error of watt-hour meter can be calibrated without switching the interface.
2. Touch screen and keys are all operable, which makes the operation more convenient and fast.
3. It can measure the voltage, current, power, phase, frequency and check the error at the same time, and the voltage and current (between 1A and 10A) can shift automatically.
4. Three-phase four-wire, three-phase three-wire active watt-hour meters, various reactive watt-hour meters (Q90, Q60) real load verification.
5. With the fundamental wave measurement mode, the calibration of the fundamental wave meter can be realized.
6. It has two power pulse input ports. It can check the active and reactive errors of two watches (main and secondary watches) or a multi-function watches at the same time. It can also check the active and reactive watches at the same time.
7. The output electric energy constant can be set to facilitate calibration of the instrument.
8. It has the function of error rectification. According to the accuracy level of the calibrated watt-hour meter, it can automatically rectify the error.
9. Measure CT ratio, ratio difference, angle difference and polarity.
10. Measurable ambient temperature and humidity. The environmental temperature and humidity at the time of measurement can also be recorded.
11. It can analyze 0-51 harmonics and measure the content, amplitude and relative fundamental phase of each harmonic. The histogram is displayed by histogram, and the histogram has the function of enlarging, which is convenient for observation and analysis.
12. Waveform display and amplification function.
13. Users can choose 5A, 10A, 100A, 200A, 500A, 1000A, 2000A clamp meter or lokovski coil 5000A, 10000A according to their needs to realize the real load measurement of the comprehensive error of low voltage electric energy metering device. It can be equipped with three kinds of forceps at the same time.
14. Automatic identification of current access mode, users do not need to set.
15. It has the function of accumulating electric energy. It can carry out walking test of electric energy meter field, calibrator error and calibration constant. Active power, reactive power and TV can be accumulated at the same time.
16. Rich vector graph display to meet various user habits.
17. It can realize fast identification of three-phase three-wire and three-phase four-wire wrong wiring. The corrective steps are given. It can also calculate the correction coefficient and supplementary power under the wrong wiring.
18. Supporting bar code input, the field can realize fast error checking without input checking parameters. (User Selection)
19. Support digital input, letter input, symbol input and Chinese character input.
20. It has the functions of storing and uploading all kinds of measurement data. Support RS232, USB communication. Measuring data can be imported through U disk. It can also accept the verification plan downloaded by PC, and quickly check the verification parameters of the table in various conditions (bureau number, account number, user name) on the spot. The measurement data of 1000 tables can be stored.
21. Hard clocks can display the current time and date directly and record the test time at any time.
22. It has RS-485 interface. It can read electricity on site and check the communication of electric energy meter.
23. Extensible measurement: PT secondary pressure drop, PT secondary load, CT secondary load.
24. With GPS interface, the multi-function timetable can be calibrated and timed.
25. Power supply operating range: 45-450V, with internal and external wiring mode, strong adaptability, safety and reliability.
