FUZRR ES3035, Руководство пользователя, Страница: 10 / 21

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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.