VOLTCRAFT VC-337 User Manual

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i) Non-contact AC voltage detection “NCV”
The voltage detector is only designed for quick tests and by no means replaces a contact bipolar
voltage test. This function must not be used to check that no voltage is present before carrying out
work.
TheNCVfunction(Non-contactvoltagedetection)detectsthepresenceofalternatingvoltage(≥120V/AC50–60Hz)
on electrical conductors without contact. The NCV sensor (12) is attached to the tip of the current clamp. The detection
distance is approximately 10 - 80 mm depending on the voltage level.
• Switch on the DMM and select the measuring function “NCV”. The dis-
playshows“EF”for“Electromagneticeld”.
• Place the NCV sensor as close as possible to an electrical conductor.
• Ifalternatingvoltageisdetected,theredNCVLED(2)ashesanda
beep sounds.
• Up to 4 bars are shown in the display depending on the intensity of the
electromagneticeld.Atthesametime,theblinkingandbeepsound
frequency also increase.
The highly sensitive NCV sensor may cause the diode to glow
when static electricity is present. This is normal and does not
indicate that the multimeter is faulty.
 AlwaystesttheNCVfunctionrstonaknownACvoltagesource
to avoid incorrect measurements. Incorrect measurements may
cause an electric shock. The inner conductors are twisted in
many cables. For this reason, move the sensor a few centime-
tres along the cable to ensure that you cover all parts of the inner conductors.

VOLTCRAFT VC-337 Specifications

General

Brand	VOLTCRAFT
Model	VC-337
Category	Measuring Instruments
Language	English