(3)DC leakage current calibration
Adjust the AC/DC selection switch to DC level,leakage current selection switch to 1mA,
slowly adjust the voltage to make the digital amperemeter display(or CS2040
Withstanding Voltage Calibrator)synchronizes with that of the meter hand, if the display is
not synchronized, calibrate W7 potentiometer to make it synchronized, and alert in
full-graduation of 1mA.
①Maintenance