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DIGITAL + ANALOGUE HIGH VOLTAGE INSULATION TESTER
OPERATOR’S MANUAL
OPERATING INSTRUCTION
4.4 INSULATION RESISTANCE MEASURING
WARNING
Insulation tests should be conducted on circuits that are out of energy. Ensure circuits are
not live before commencing testing.
Ensure that there is no any components damaged by high measured voltage.
Using test line and test clips connect the meter and the tested circuit, then press test button.
When testing, there is 2500V between the test line and other two connections terminal.
4.4.1 Set the function switch to “OFF” position.
4.4.2 Connect the tested circuit to the earth ground, then use the test clip to connect the earth and the
earth terminal of the tested circuit, ensure better connection.
4.4.3 Set the function switch to “M” position.
4.4.4 Touch the probe of the test line to the tested circuit, then press the button.
4.4.5 LED on the dial will flash. The reading can be gotten from the green scale after the flash of green
LED; or from the red scale after the flash of red LED.
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