The instrument GF312D1 is a precision 0.05% AC energy meter testing instrument, mainly used to test three se energy meter error on site, measure all various of AC parameters and CT ratio & se error, it is also as three se reference energy meter in the laboratory. Mainly using test single se or three se meter error on site. GF312D1 energy meter calibrator is an ideal test tool for the metrological service of electricity power company.
FEATURES
1. Handheld designed;
2. Display vector diagram;
3. Measure CT variable ratio;
4. Display waveform of U and I;
5. Measure 2-64 harmonic of U, I;
6. Store and display measured data;
7. High precision measurement, min current 1mA;
8. Analyze and display content of harmonic of U and I;
9. Voltage and current synchronous sampling technology;
10. Measure the ratio or lag-angle of low-voltage transformer;
11. Optional 5A, 20A, 100A,200A, 500A, 1000A, 2000A, 3000A current clamp;
12. Adopt 32 bit ARM processor, multi-channel 16 bit precision A/D convertor, high resolution TFT color LCD;
13. Inner equipped with 0.01% wide-range current transformer and can be equipped with various type current clamps, wide range of measurement and high veracity;
14. Low consumption circuit design, high energy Li batter supply, intellectual power management software, which make the instrument can continuously work up to 10 hours.
Electrical parametersã | |
Accuracy class | 0.05%, 0.1%, 0.2% |
Display | 6"TFT (640Ã480) |
Power supply | 220V±10%, 50/60HzLi-polymer battery (size (mm): 110x51x16, nominal output voltage: 7.2V, capacity: 5000mAh)Power ly (U1, UN), 85V-265V 50/60Hz |
Communication port | RS232 |
Test voltage | |
Range | se to Netural 0-480V (se to se 0-830V) |
Test current | |
Range (direct connection) | 0-12A |
Error (direct connection) | ±0.05% (10mA-12A)±0.1% (1mA-10mA) |
Range (clamp CT) | 10mA-120A |
Clamp CT Optional | 5A, 20A, 100A, 200A, 500A, 1000A, 2000A, 3000A |
Harmonic | 2nd-64st |
Frequency | |
Range | 40-70Hz |
Mechanical parameters | |
Instrument dimensions (WÃHÃD) (mm) | 245Ã162Ã60 |
Instrument Weight (kg) | 1.6 |
Carry case dimensions (WÃHÃD) (mm) | 450Ã320Ã185 |
Carry case (kg) | 10.6 |
Environmental conditions | |
Ambient temperature | -10°C to 55°C |
Relative humidity | 15%-95% |
Environmental protection level | IP51 |