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VI.Measuring Principle
Insulation resistance measurement uses a voltage generator to
generate a voltage, V, applied across the resistor, measuring the current
I flowing across the resistor, and calculating the ground resistance
value R according to the formula R=V/I.
VII.Operation Method
1．Power On/Off
Press the POWER button to turn the switch on and off. After the power
is turned on, “APO” is displayed in the lower corner. When it is not in
operation, it will automatically shut down after 15 minutes.
2．Battery Voltage Check
After powering on, if the LCD shows a low battery voltage sign “ ”,
it indicates that the battery is running low. Please charge in time.
Sufficient battery power to ensure measurement accuracy
3． DC Voltage Test
Input instrument DC voltage cannot exceed 1000V
Press the button to switch to the DC voltage test mode, connect the
green test lead to the V terminal, the black test lead to the COM, and the
LCD displays the real-time DC voltage value.
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