Non-Contact Voltage Sensing - Amprobe AM-540 User Manual

Non-Contact Voltage Sensing

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1. To avoid personal injury or damage to the Meter, do not test on un-
insulated high voltage wires.
2. Buzzer will sound and screen will display "OL" when sensing AC voltage
above 90V.
3. Do not test on hazardous live wires higher than AC 750V.
4. Before and after hazardous voltage measurements, test the Meter by
approaching to a known source such as a line AC voltage or outlet to
determine proper operation.
5. At NCV mode, no test lead connections are required for NCV measurement.
Buzzer will sound when the detected voltage is ≥90V, and the buzzer will be
on.The distances between the wire and the meter should be ≤8mm.
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