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DCM3000
4.14 NCV Measurement
1) Turn the meter to NCV mode
2) Place the meter top close to the conductor. When test voltage is greater than 110Vac (T-RMS),
the meter´s LED indicator will blink and the buzzer will give an alternating high-low alarm sound.
Note:
1) Even there is no indication, voltage may exist still. Don't use non-contact voltage detector to
judge whether there is voltage in the wire. Detection operation could be affected by socket
design, insulation thickness, type and other factors.
2) When inputting voltage on the meter input terminal, due to the existence of the induced voltage,
voltage induction indicator also may light.
3) External sources of interference (such as flashlight, motor, etc.) may incorrectly trigger non-
contact voltage detection.
5. MAINTENANCE
5.1 Replace Battery
WARNING
To avoid electric shock, make sure that the test leads have been clearly move away from the
circuit under measurement before opening the battery cover.
1) If the symbol "
" appears, it means that the batteriers should be replaced.
2) Loosen the screw of the battery cover and remove it.
3) Replace the used battery with a new one.
4) Return the battery cover and tighten the screw.
Note: The battery polarity can´t be reversed
5.2 Replace probe
Replace test lead if leads become damaged or worn.
WARNING
Use meet EN 61010-031 standard, rated CAT IV600V, or better test leads
WARNING
To avoid electric shock, make sure the probes are disconnected from the measured circuit before
removing the rear cover. Make sure the rear cover is tightly screwed before using the instrument.
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