SHZ-D type constant speed source

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SHZ-D type constant speed source


SHZ-D constant speed source is a special product designed and produced according to the technical requirements of the national insulation resistance meter calibration regulations "JJG622-97" and grounding resistance meter calibration regulations "JJG366-86". It is suitable for calibrating various hand-cranked megohms. Ideal equipment for earth resistance meters and earth resistance meters.