JD-1B ground resistance meter calibration device
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JD-1B ground resistance meter calibration device
The JD-1B ground resistance meter calibration device is a standard instrument for calibrating ground resistance meters. It fully complies with the requirements of JJG366-2004 for standard instruments. It can calibrate analog and digital ground resistance meters of various accuracy levels and models. It shall not be used for the verification of ground conduction resistance meter (working current is AC25A). It can be used as a resistance box with a starting resistance of 10mΩ and a resolution of 1mΩ.
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