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JW-0303B Three-phase Multi-function Standard Meter: The core part of three-phase multi-function standard meter of class 0.05 is composed of high-precision power frequency AC collector using 32 bits DSP and 16 bits high-speed low power ...

JW-0302E Field Calibrator of Multi-function Electric Energy Meter: instruments as well as each type of active and reactive electric energy meters of three-phase three-wire, three-phase four-wire and single phase of 1A and 5A. 6. Verification of electric energy ...

JW-0301A Comprehensive Calibration Unit for Transmitter: instrument is suitable for on-the-spot calibration. In the measurement of AC voltage, current, active power, its accuracy is 0.05 level; because the device is provided with a higher 60KHz working ...

JW-0301AT AC / DC Meter &Amp; Transmitter Calibration Bench: test meter with corresponding output information, the verification system of source table and computer can realize automatic verification, and the verification report according with the regulation ...

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JW-0303B Three-phase Multi-function Standard Meter