GF333 Multi-function three phase Standard Meter with high stability
(Accuracy class 0.02%/0.05%)
GF333 can be used as a calibration device standard meter, also as a
testing calibrator in measurement test center of grid corporation,
power company and measurement department in power plant, national
levels of measurement mechanism, quality inspection departments,
research institutes, tertiary institutions, industrial and mining
enterprises, electric energy meter and electrical instrument
production enterprises etc.
Functions and Features
1. Measure the AC voltage, current, active power, reactive power,
frequency, phase angle and power factor etc;
2. Measure the AC voltage, current 2~31 harmonic content and
waveform distortion degree;
3. Measure active power energy error, reactive power energy error,
the maximum output pulse frequency is to 2 MHZ;
4. Measure calibration device of voltage, current, power stability;
5. Measure calibration device the standard deviation of estimate;
6. Measure the voltage of the calibration device three-phase
symmetric degrees, the current of three three-phase symmetric
degree;
7. Measure calibration device of the magnetic induction;
8. Measure DC voltage and DC current;
9. Transducer measurement;
10. With RS232 interface, it can be controlled by PC operation;
11. Core part uses the 32 bit DSP and16 bit low power and high
speed DAC consists of high accuracy AC collector.
12. Using 6.5 inch TFT color LCD screen, character display clear
chart. Have the advantages of wide measuring range, high precision,
stable and reliable operation, simple operation etc.
| Electrical parameters | |
| Accuracy class | 0.02%, 0.05% |
| Power supply | AC 220 V±10% or 110 V±10%, 50/60Hz |
| Power consumption | <30VA |
| Warming-up time | <30min |
| Voltage measurement | |
| U1, U2,U3 | 6.25V, 12.5V, 25V, 50V, 100V, 200V, 400V, 800V (switch
automatically), max 1000V |
| Range | (0-120%)RG |
| Resolution | 0.01%RG |
| Accuracy | 0.02%RD or 0.05%RD |
| Current measurement | |
| I1, I2, I3 | 0.25, 0.5, 1, 2.5, 5, 10, 25, 50, 100A(switch automatically) |
| Range | (0-120%)RG |
| Resolution | 0.01%RG |
| Accuracy | 0.02%RD or 0.05%RD |
| Power measurement | |
| Active accuracy | 0.02%RD or 0.05%RD |
| Reactive accuracy | 0.05%RD or 0.1%RD |
| Apparent accuracy | 0.02%RD or 0.05%RD |
| Energy measurement | |
| Active accuracy | 0.02%RD or 0.05%RD |
| Reactive accuracy | 0.05%RD or 0.1%RD |
| Phase measurement | |
| Range | 0.00°-359.99° |
| Resolution | 0.001° |
| Accuracy | 0.02° (voltage ≥50V and current ≥250mA) |
| Frequency measurement | |
| Range | 45-65Hz |
| Resolution | 0. 001Hz |
| Accuracy | 0.002Hz |
| Power Factor measurement | |
| Range | -1.0 ~ 0 ~ +1.0 |
| Resolution | 0.0001 |
| Accuracy | 0.0005 |
| Electric energy pulse output | |
| Pulse constant range | 1-2880000000 |
| Output frequency of max. pulse | 600 kHz |
| Load capacity | >2mA |
| Default pulse output frequency | 10kHz-600kHz |
| Energy pulse Input | |
| Input range of pulse constant | 600-700000 |
| Setting range of test pulse | 1-999999999 |
| Max. pulse receiving frequency | 2MHz |
| Pulse input level | 5V |
| Voltage/current harmonics measurement | |
| Times | 2-31 |
| Error | 0.05% |
| Distortion degree error | 0.05% |
| Transducer measurement | |
| DC voltage range | ±1, ±5, ±10, ±20 V |
| Accuracy | 0.01% |
| DC current range | ±1, ±2.5, ±5, ±10, ±20mA |
| Accuracy | 0.01% |
| Ripple error | 1% |
| DC measurements (option) | |
| DC voltage | 50V, 100V, 200V, 400V, 800V (switch automatically), max 1000V |
| Range | (0 -120%) RG |
| Resolution | 0.01% RG |
| Accuracy | 0.02% RD |
| DC current | 0.1A, 0.3A, 1A, 3A, 10A, 30 A(switch automatically) |
| Range | (0-120%) RG |
| Resolution | 0.01% RG |
| Accuracy | 0.02% RD |
| Mechanical parameters | |
| Dimensions (W×H×D) (mm) | 440×360×160 |
| Weight (kg) | 10 |
| Environmental conditions | |
| Operating temperature | 10°C to 30°C |
| Relative humidity | ≤85% |
