GF312B2 Three phase portable standard energy meter test equipment
GF312B2 portable energy meter test equipment is high accuracy 0.02%, with all kinds of optional clamp on ct (5A,20A, 100A, 200A, 500A, 1000A, 2000A, 3000A) and smart optical sampler. It can be applied in electrical laboratory or on site to check watt-hour meter error. it will be ensured by a combination of measures such as the use of 24bit A/D converter, DSP+32 bit ARM technology, a widely measuring range 600V/120A, adapted to typical test points of most recognized national metrological institutes. It can be as high precision three phase reference energy meter, also three phase portable energy meter calibrator, test ct pt ratio, burden etc. This model GF312B2 has been used many ISO17025 laboratory for electricity power utilities.
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Parameters
| Electrical parameters | |
|---|---|
| Accuracy class | 0.02% , 0.05% |
| Power supply | 40-450V, 50/60Hz±2Hz |
| Power consumption | 13VA |
| Communication port | RS232, USB |
| Voltage measurement(U1 U2 U3 UN) | |
| Range | 0.0000-600.0000V |
| Resolution | 0.001V |
| Error | ±0.02% (30V-600V) ±0.05% (0.01V-30V) |
| Harmonic | 2nd-63st |
| Current measurement(I1 I2 I3) | |
| Range (direct connection) | 1mA-120.0000A |
| Resolution | 0.1mA |
| Error (direct connection) | ±0.02% (10mA-120A) ±0.05% (0.1mA-10mA) |
| Harmonic | 2nd-63st |
| Clamp on CT(option) | 5A,20A, 100A, 200A, 500A, 1000A, 2000A, 3000A |
| Accuracy | 0.2% |
| Power measure error | |
| Active power (direct connection) | ±0.02% (0.1A-120A) ±0.05% (0.02A-0.1A) |
| Reactive power (direct connection) | ±0.05% (0.1A-120A) |
| Energy measure error | |
| Active energy (direct connection) | ±0.02% (0.01A-120A) ±0.05% (0.001A-0.01A) |
| Reactive energy (direct connection) | ±0.05% (0.01A-120A) |
| Phase angle | |
| Range | 0°-360° |
| Resolution | 0.005° |
| Error | ±0.015° |
| Frequency | |
| Range | 40.0000-70.0000Hz |
| Resolution | 0.0005Hz |
| Error | 0.001Hz |
| Power factor | |
| Range | -1.0 ~ 0 ~ +1.0 |
| Resolution | 0.0001 |
| Error | 0.0005 |
| Reference Meter | |
| Measuring modes | 2WA / 2WR / 2WAP 3WA / 3WR /3WAP /3WRCA /3WRCB 4WA /4WAb / 4WR /4WRb /4WAP /4WAPb /4WRC |
| Brandwidth | 3000Hz |
| Sampling | 24 bit 504 samplers/ period |
| Pulse output | |
| Energy constant | 1-250000, programmable |
| Pulse ratio | 1:1 |
| Output level | 5V |
| Pulse input | |
| Input channel | 2 |
| Input level | 5-24V |
| Input frequency | Max. 2MHz |
| Display | |
| Color LCD | 7"STN (800×480), touch |
| Function | |
| Vector diagram | Yes |
| Waveform | Yes |
| Energy accumulation | Yes |
| CT ratio test | Yes |
| CT PT programmable | Yes |
| CT PT burden | Optional |
| Local parameter input | Yes |
| Wiring emulation | Yes |
| Self-calibration | Yes |
| Recorder check | Yes |
| Data storage | Yes |
| GPS | Yes, Optional |
| Data storage qty | 10000 |
| External extend memory | Yes |
| Screen printing | Yes |
| Communication port | USB/RS232 |
| Communication with PC | Yes |
| Upload data | Yes, U disk |
| External mini printer | Yes, Optional |
| Keyboard | Yes |
| Standard | |
| Standard | IEC 62053-21,22, 23; IEC 60736; IR46; ANSI C12.20-2022; JJG 597-2005; JJG596-2012; JJG 1085-2013; JJF 68-2019; DL/T 826-2002; DL/T 1478-2015; DL/T 448-2016 |
| Safety | |
| IP class according to DIN EN 60529 | IP65 |
| Declaration of conformity | CE & CNAS conform |
| Protection class according to DIN EN 61140 | II |
| Isolation protection | IEC 61010-1:2001 |
| Overvoltage category voltage measurement | CAT III 600V |
| Overvoltage category current | CAT III 600V |
| Mechanical parameters | |
| Dimensions (W×H×D) (mm) | 365×269×151 |
| Weight (kg) | 4 |
| Environmental conditions | |
| Ambient temperature | -25°C to +50°C |
| Storage temperature | -30°C to +65°C |
| Relative humidity | 15%-95% |
| Temperature coefficient | ≤0.0005% /℃ |
| Influence of external fields | ≤0.05 %/mT |
