GF312D1 handheld three phase energy meter calibrator
The model GF312D1 is a precision 0.05% AC energy meter accuracy testing instrument with 12A/600V and 120A/600V range, mainly used to test single phase and three phase energy meter error on site, measure all various of AC parameters and CT ratio & phase error, it is also as three phase reference energy meter in the laboratory. Mainly using test single phase or three phase electricity meter error on site. GF312D1 handheld energy meter calibrator is an ideal test tool for the metrological service of electricity power utilities.
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Features
- Handheld designed;
- Display vector diagram;
- Measure CT ratio & phase;
- Display waveform of U and I;
- Measure 2-64th harmonic of U, I;
- Store and display measured data;
- High resolution 6 inch TFT color LCD;
- High precision measurement, min current 1mA;
- Analyze and display content of harmonic of U and I;
- Voltage and current synchronous sampling technology;
- Measure the ratio or lag-angle of low-voltage transformer;
- With PC management software, download excel file test report;
- Calibration of two energy meters error in the same load circuit;
- Optional 5A, 20A, 100A, 200A, 500A, 1000A, 2000A, 3000A current clamp;
- Adopt 32 bit ARM processor, multi-channel 16 bit precision A/D convertor;
- 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;
- Low consumption circuit design, high energy Li batter supply, intellectual power management software, which make the instrument can continuously work up to 10 hours.
Functions
- CT PT burden test;
- CT ratio and phase testing;
- Measure frequency of power line;
- Measure 2-64th times harmonics and content;
- Testing comprehensive error of measuring device;
- Measure I(current) of three phase or single phase;
- Measure U(voltage) of three phase or single phase;
- Measure active power of three phase or single phase;
- Measure power factor of three phase or single phase;
- Measure apparent power of three phase or single phase;
- Measure reactive power of three phase or single phase;
- Measure phase angle between U & I, U1 & U2 & U3, I1 & I2 & I3;
- Testing all kinds of mechanical and electronic energy meter error;
- Calibrate three phase, single phase, and active or reactive meter error;
- As one three phase active or reactive electricity reference energy meter;
Parameters
| Electrical parameters | |
|---|---|
| Accuracy class | 0.05%, 0.1% |
| Display | 6"TFT (640×480) |
| Power supply | 220V±10%, 50/60Hz Li-polymer battery (size (mm): 110x51x16, nominal output voltage: 7.2V, capacity: 5000mAh) Power line supply (U1, UN), 85V-265V 50/60Hz |
| Communication port | RS232 or USB |
| Test voltage | |
| Range | Phase to netural 0-600V (phase to phase 0-830V) |
| Error | ±0.05% (30V-600V) ±0.1% (5V-30V) |
| Voltage measurement temperature drift | <8x10E-6/K |
| Voltage measurement relative humidity drift | <8x10 E-6/RH |
| Voltage measurement stability | <50x10E-6 |
| Voltage measurement long term stability | <80x10E-6/Year |
| Harmonic | 2nd-64st |
| 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 |  Model: Q13Test range: 1mA-120A Accuracy: 0.1% Ratio: 1000:1 Internal diameter: 13mm External diameter: 33mm Lead cable: 2.5m |
| Clamp ct optional | 5A, 20A, 100A, 200A, 500A, 1000A, 2000A, 3000A |
| Three phase color label | L1=Red, L2=Yellow, L3=Blue |
| Error (clamp CT) | ±0.1% (100mA-120A) |
| Current measurement temperature drift | <8x10E-6/K@10mA-120A |
| Current measurement relative humidity drift | <8x10E-6/RH@10mA-120A |
| Current measurement stability | <50x10E-6 |
| Current measurement long term stability | <80x10E-6/Year |
| Harmonic | 2nd-64st |
| Power & energy measure error | |
| Active power (direct connection) | ±0.05% (0.1A-12A) ±0.1% (0.01A-0.1A) |
| Reactive power (direct connection) | ±0.1% (0.1A-12A) |
| Energy measure error | |
| Active energy (direct connection) | ±0.05% (0.1A-12A) ±0.1% (0.01A-0.1A) |
| Reactive energy (direct connection) | ±0.1% (0.1A-12A) |
| Power/energy measurement temperature drift | <15x10E-6/K |
| Power/energy measurement relative humidity drift | <12x10E-6/RH@10mA-120A |
| Power/energy measurement stability | <100x10E-6 |
| Power/energy measurement long term stability | <160x10E-6/Year |
| Error display | 5 digits with minimum three decimal places XX.XXX% |
| Phase angle | |
| Range | 0°-360.000° |
| Resolution | 0.01° |
| Error | ±0.02° |
| Frequency | |
| Range | 40.000-70.000Hz |
| Resolution | 0.001Hz |
| Error | 0.002Hz |
| Pulse input | |
| Input channel | 2 |
| Input level | 5-24V |
| Input frequency | Max. 2MHz |
| Pulse output | |
| Energy constant | 180000imp/kWh, 1800imp/kWh, 180imp/kWh |
| Pulse ratio | 1:1 |
| Output level | 5V |
| Pulse frequency | Standard 400Hz-2.5KHz, customized max 10KHz |
| Scanning head | |
 |
The sampler is equipped with a bracket which can clip/install on the tested electronic and electromechanical meters, and the sampler can insert to the 'orifice/slot' in the center of the bracket. There are 3 status LED indicator: [AUTO]– scan the turn-plate of the energy meter [MANU]–Manual input pulse [LED]– Receive the LED energy pulse |
| Function | Sensitivity can be intelligently adjusted according to ambient light intensity to ensure accuracy measurement. |
| Function | |
| Vector diagram | Yes |
| Waveform | Yes |
| Energy accumulation | Yes |
| Communication with PC | Yes |
| Overload protection | Yes |
| Cable and accessories | |
| Test cable | Voltage test cable 1set cable length: 2m (R, Y, B, Black) Current test calbe 1set cable length: 2m (R, Y, B, Black) |
| Plug | Pin type1set (4black, 2red, 2yellow, 2green) 'U' type1set (4black, 2red, 2yellow, 2green) 'Ω' type1set (4black, 2red, 2yellow, 2green) Crocodile type1set (1black, 1red, 1yellow, 1green) |
| Accessories bag | Yes |
| Mechanical parameters | |
| Instrument dimensions (W×H×D)(mm) | 245×162×60 |
| Instrument weight (kg) | 1.8 |
| Carry case dimensions (W×H×D)(mm) | 450×320×185 |
| Carry case (kg) | 10.6 |
| Environmental conditions | |
| Ambient temperature | -10°C to 55°C |
| Relative humidity | 15%-95% |
| Environmental protection level | IP53 |
| Standard | |
| lsolation protection | IEC 61010-1:2001 |
| Energy measurement | IEC 60736; IR46 |
| Reference standard | IEC 62052-11 IEC62053-21 IEC62053-22 & IEC62053-23 IEC61010-1:2001 |
| Calibration and maintenance | |
| Warranty | 3 years |
| Calibration | Lifelong calibration service |
| Recommended calibration interval | Every two years |
