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DIGITAL + ANALOGUE HIGH VOLTAGE INSULATION TESTER
OPERATOR’S MANUAL
OPERATING INSTRUCTION
4. OPERATING INSTRUCTION
WARNING
Once press the measured button, be careful to the high voltage between test line and other
two connections. Earth terminal must be always connected with the ground for safe and
reliable measurement.
Before measure, ensure there are no any components damaged by high test voltage in the
circuit.
When measure the insulated resistance, the inside buzzer will send out humming sound
continuously for reminding the user of safe operation.
4.1 ALARM
In insulation range, the test button is pressed, the inside alarming system will send out a humming sound.
4.2 PREPARATION FOR MEASUREMENT
4.2.1 Set the function switch to “OFF” position.
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