JYM-1 portable single-phase electric energy meter calibration dev
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JYM-1 portable single-phase electric energy meter calibration device
This device is a new generation of highly intelligent single-phase energy meter calibration device developed using the latest technology. All its indicators are better than the technical requirements of the national standard "GB11150-89" and the national metrology verification regulations "JJG597-89". It can calibrate and verify single-phase AC induction energy meters and electronic energy meters below level 0.5. Please read this instruction manual carefully before using this device.
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