Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd. an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.
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GF333B Three Phase Reference Standard Meter with excellent working performance
(Accuracy class 0.05%)
Product Description
GF333B is a portable reference standard meter used to test three phase meters and single phase meters, it designed to work both in the field and in the laboratory.
Features
1. High accuracy up to 0.05%
2. Wide testing range: voltage 5V-480V, current 1mA-120A
3. Testing type: 3 phase 4 wire, 3 phase 3 wire
4. Testing mode: active power, reactive power, apparent power
5. Harmonic analysis function
6. Waveform display function
7. Vector diagram function
8. Energy accumulating function
9. Internal pulse input port, testing meter’s error directly.
| Electrical parameters | |
| Accuracy | 0.05% |
| Voltage supply | 220V±10% or 110V±10%, 50/60Hz |
| Voltage measurement | |
| Range | 5V-480V |
| Error | ±0.02% (50V-480V), ±0.05% (5V-50V) |
| Display range | 5.000000V-480.0000V |
| Harmonic | 2nd-63st |
| Current measurement | |
| Range | 1mA-120A |
| Error | ±0.02% (0.2A-120A), ±0.05% (1mA-0.2A) |
| Display range | 1.000000mA-120.0000A |
| Power measurement | |
| Active power | ±0.02% (0.2A-120A) ±0.05% (0.01A-0.2A) ±0.1% (0.001A-0.01A) |
| Reactive power | ±0.05% (0.2A-120A), ±0.1% (0.001A-0.2A) |
| Apparent power | ±0.05% (0.2A-120A), ±0.1% (0.001A-0.2A) |
| Energy error | |
| Active energy | ±0.02% (0.2A-120A) ±0.05% (0.01A-0.2A) ±0.1% (0.001A-0.01A) |
| Reactive energy | ±0.05% (0.2A-120A), ±0.1% (0.001A-0.2A) |
| Apparent energy | ±0.05% (0.2A-120A), ±0.1% (0.001A-0.2A) |
| Phase measurement | |
| Range | 0o-360o |
| Error | ±0.005o |
| Display range | 0.0001o-359.99o |
| Frequency measurement | |
| Range | 45-65Hz |
| Display range | 45.0000-65.0000 |
| Accuracy | 0.002Hz |
| Power Factor measurement | |
| Range | -1.0 ~ 0 ~ +1.0 |
| Resolution | 0.0001 |
| Accuracy | 0.0005 |
| Energy pulse | |
| High frequency output(CH) | 12000Hz |
| Low frequency output(CL) | 5000Hz |
| Pulse ratio | 1:1 |
| Output level | 5V |
| Input level | 5V |
| Input frequency | Max. 1MHz |
| Mechanical parameters | |
| Dimensions (W×H×D) (mm) | 480×138×486 |
| Weight (kg) | 10 |
| Environmental conditions | |
| Ambient temperature | -10℃ to 45℃ |
| Influence of external fields | ≤ 0.05 % / mT |
| Relative humidity | 10%-80% |