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JW-0305 Single-phase AC & DC Meter Calibration Device: 1. The device is composed of single-phase AC standard voltage source and standard current source as well as DC standard voltage source and standard current source which enable output. 2. It ...

JW-0306A Clamp Meter Test Calibrator: The device is a single-phase 0.05 AC-DC standard source designed in accordance with JJG124-2005 Verification Regulation of Ammeters, Voltmeters, Wattmeters and Ohmmeters and the relevant national ...

JW-0302E Field Calibrator of Multi-function Electric Energy Meter: phase three-wire. 4. Split type transformer can be used for measurement in current circuit, and the measurement can be made without disconnection of current circuit by operators. The measurement is ...

JW-0301B AC Sampler & Transmitter Calibration Device: 0～20%， phase angle fine 0.01°·N（N:harmonic order）。 ·DC meter(for transmitter output meter) accuracy DC voltage ±1V，±5V，±10V，±20V，1～5V，2～10V，1～3～5V，2～6～10V Accurancy 0.02%； DC current ...

JW-0301AT AC / DC Meter &Amp; Transmitter Calibration Bench: single-phase power and three-phase power output by the device; B. Distortion of output voltage and current; C. Symmetry of three-phase voltage, symmetry of three-phase current; D. The magnetic ...

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JW-0305 Single-phase AC & DC Meter Calibration Device