JWT3603 portable single-phase watt-hour meter calibrator is a kind of portable hand-held multi-function instrument used in the on-site calibration of AC single-phase watt-hour meter. This calibrator adopts intemationa1ly advanced new-generation digital processing technology and possesses such features as small size, multiple functions, high accuracy and so on. The device not only has the function to calibrate watt-hour meter, but also can measure RMS voltage and RMS current, active power, power factor, and also can store the on-site measurement data and transmit the stored data to computer. The device is equipped with precision clamp current transformer to perform on-site calibration of watt-hour meter while without having to dismount the watt-hour meter or cut off power source and measure the voltage, current,power,and power factor.
1. On -site calibration of' single-phase inductive and electronic watt-hour meter and measurement of voltage, current, power, and power factor
2. Both automatic photo-electric calibration and manually controlled calibration are available
3. Be able to work normally between (85-265) VAC and has over-voltage protection function
4. Allow connection to clamp current transformer of different measurement ranges
5. Power pulse output function for easy calibration of the device
6. Liquid crystal display. less buttons, easy and direct operation
7. Small size and light weight for portable and hand-held on-site operation
8. Allow storage of 99 pairs of on- site calibration data
Technical Parameters
1. Accuracy: Grade 0.3 and 0.5
2. Frequency: 45-65Hz
3. Input voltage: 85V-260V
4. Input current: Clamp current 0-20A, 0-100A or 0-800A also available
5. Voltage measurement range: 85V-260V; accuracy:O.5%
6. Current measurement range: 0.25A- 100A; accuracy: 0.5%
7. Power measurement range: 20W-22000W; accuracy: 0.5%
8. Power factor measurement range: 0.5-1 .0; accuracy: 0.01
9. Outer dimensions (mm): 220x85(113) x 38(48.5)
10. Weight: 550g
