KE7303 |
Portable Three Phase Standard Meter |
Accuracy : 0.05 / 0.1, Test method : terminal input or clamp CT input, test the error of three phase energy meters and feild electrical parameters of power grid |
² Calibrate the error of all electricity energy meters, checking the constant of the energy meter
² Simultaneous checking of the primary meter and the secondary meter in the same loop, or simultaneously checking of the active power meter and reactive power meter inthe same loop
² Measure voltage, current, frequency, power, power factor and phase angle
² Simultaneous measure and display waveforms of three phase voltage and current
² Detectthe error change of the clamp automatically; ensure the accuracy stability ofthe clamp and the instrument in the long run.
² Measureratio of CT, VA burden of the metering loop from VT and CT secondary terminals.
² Allocate clamp of 20A, 100A, 500A, 1000A to directly measure the comprehensive error
² Measurethe 2nd – 51st harmonics of current and voltage
² Display vector diagram, judge the wiring right or wrong automatically
² Read the information of energy meter with barcode scanner (optional)
² Battery, test lead power or external power for choices
² Communicate with PC, download calibration data through USB flash disk, RS-232 or bluetooth
² Firmware can be upgraded through removed disk by users themselves
² Save and browse the testing data, data storage quantity is 1000 group
| KE7303-0.05 | KE7303-0.1 | |
Voltage measurement | |||
Voltage range | 0V – 480V | ||
Accuracy | ±0.05% | ±0.1% | |
Harmonics | 2nd- 51st | ||
Current measurement | |||
Current range | Terminal input | 0.1A – 10A | |
Clamp input | 5A、20A、100A、500A、1000A、2000A、3000A | ||
Accuracy | Terminal input | ±0.05% | ±0.1% |
Clamp input | ±0.2%(5A)、±0.5% (others) | ||
Harmonics | 2nd- 51st | ||
Power measurement | |||
Active power | Terminal input | ±0.05% | ±0.1% |
Clamp input | ±0.2%(5A)、±0.5% (others) | ||
Reactive power | Terminal input | ±0.05% | ±0.1% |
Clamp input | ±0.2%(5A)、±0.5% (others) | ||
Energy measurement | |||
Active energy | Terminal input | ±0.05% | ±0.1% |
Clamp input | ±0.2%(5A)、±0.5% (others) | ||
Reactive power | Terminal input | ±0.05% | ±0.1% |
Clamp input | ±0.2%(5A)、±0.5% (others) | ||
Phase measurement | |||
Phase range | 0 -- 360° | ||
Accuracy | ±0.05° | ±0.1° | |
Frequency measurement | |||
Frequency range | 45Hz – 65Hz | ||
Accuracy | ±0.05Hz | ||
Pulse output | |||
High frequency output(CH) | 3.6×107imp / kWh | ||
Low frequency output(CL) | 3.6×104imp / kWh | ||
Pulse input | |||
Input channel | 2 | ||
Input frequency | Max. 100Hz | ||
Others | |||
Power supply | Build-in rechargeable battery, external power supply, powered from the tested terminal | ||
Dimensions | 154mm×249mm×58mm | ||
Weight | 1.8kg |
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