GDYM-3P 3 Phase Energy Meter On-site Calibrator
Description
This product is mainly used for the on-site verification of all single-phase and three-phase energy meters of level 0.1 and above. The specially added three-phase source can realize accurate verification of various energy meters without user load or in a laboratory environment. Double meter simultaneous verification, electrical parameter measurement, transformer ratio test, harmonic test, wrong wiring discrimination correction, test data storage and query and other functions, 5.7-inch color LCD or touch screen display, bilingual Chinese and English interface, multiple power supply methods Choice, fully meet customer needs. The self-calibration function of the patented clamp meter ensures the stability of the clamp meter at any time.
Features
1. Check the energy error of all energy meters and check the constants of various energy meters.
2. Simultaneously verify the main and auxiliary meters in the same loop or the active and reactive meters in the same loop.
3. Verify voltage, current, power, power factor, phase and frequency of electrical instruments and transmitters.
4. Measure the electrical parameters of each phase (U, I, P, Q, Φ, F) on site, measure and display three voltage / current waveforms at the same time.
5. Automatically detect the error change of the clamp meter, and self-check each phase to ensure the long-term accuracy stability of the clamp meter and the instrument.
6. The meter and source are integrated, the maximum output current is 5A, the maximum output power is 8VA, and the energy meter is verified when there is no load on site.
7. It comes with a simulated load, which can output any power factor and any current size, and comprehensively test the checkpoint of the energy meter.
8. Measure TA transformation ratio, measure PT, CT secondary load.
9. Equipped with 20A, 100A, 500A, 1000A clamps to directly measure the comprehensive error of low-voltage measurement.
10. Measure the 2nd to 51th harmonic of three-phase voltage and current, and store all harmonic data.
11. Identify any kind of wrong wiring of the energy meter in the four phase limits, display the hexagonal diagram of any wiring, can recognize the situation where the IB access is reversed with the polarity of TV and TA, and can also be used as a hexagonal diagram to check the line training.
12. Equipped with various bar code scanning guns to scan and store the bar code of the energy meter into the instrument.
13. Directly read the data of the multi-function energy meter and measure the error of various energy meters.
14. Various power supply options such as battery power supply, online power supply, external power supply, etc ..
15. Support low current test of less than 5mA, which is convenient for wiring identification when no load is detected in the first inspection.
16. The calibration data can be downloaded through the upgrade software such as U disk, serial port, Bluetooth, etc., and can communicate with the PC.
17. Equipped with special energy meter management system software to realize paperless office.
18. Store all measurement data, including working parameters, to facilitate later analysis.
19. Using digital true reactive measurement technology, the measurement is not affected by voltage and current imbalance, phase angle asymmetry, frequency change, etc., and the accuracy is up to 1‰.
20. Adopt high-speed and high-precision digital multiplier, simultaneously measure active (reactive) power, voltage, current, frequency, phase and other parameters, and perform software correction on all parameters.
21. High brightness, high definition, high resolution 5.7 "(320 * 240) TFT colorful LCD display.
22. Wide working power AC 57.7~480V, to ensure the accuracy of electric energy in the temperature range of -20 ºC~ + 40 ºC.
23. There is no potentiometer, which improves the stability and reliability of the system and completely prevents the instrument from changing errors due to external reasons such as transportation.
24. Voltage automatic shift 30 ~ 480V, current input 5A directly.
25. With a 0.2class 5A clamp meter, it contains the non-repeatability error of opening and closing, contact error, external magnetic field interference error, angle difference, etc .
26. High-precision plastic mold chassis design, light and beautiful, convenient for all kinds of on-site verification.
Specification
| Voltage measurement range |
AC 30-480V |
| Current measurement range |
Terminal input |
1A, 5A |
| Clamp input |
1A, 50A, 20A, 500A, 1000A |
| Terminal input error |
Active energy, power, voltage, current |
±0.1%(0.1 class), ±0.05%(0.05 class) |
| Reactive energy |
±0.1%(0.1 class) |
| Frequency |
±0.05Hz(0.1 class) |
| Phase |
±0.1°(0.1 class),±0.05°(0.05 class) |
| Clamp input error |
1A, 5A(clamp with self-correction), 20A |
±0.2% |
| 100A, 500A, 1000A, 1500A |
±0.5% |
| Energy pulse constant |
5A |
FL=36000P/KWh FH=3.6×10000000P/KWh |
| |
Ohters |
FL=36000x5/rated current(P/kWh) FH=3.6x10000000x5/rated current(P/kWh) |
| UI harmonic measurement |
Measurement range |
2-51 times harmonic |
| Measurement accuracy |
±0.01%(relative to 100% fundamental wave) |
| Frequency range |
45-55Hz |
| Phase measurement range |
-180~+180° |
| Turns ratio |
<±0.5% |
| Voltage influence |
<±0.01% |
| Frequency influence |
<±0.01%(45-55Hz) |
| Temperature influence |
<±5ppm/ºC(typical) |
| 24 hour variation |
(0.1 class)<±0.02% , (0.05 grade)<±0.01% |
| Power consumption |
about 4.5VA |
| Relative humidity |
40% -95% without condensation |
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