I) Non-Contact Voltage Detection "Ncv - VOLTCRAFT VC-335 Bedienungsanleitung

• Now connect both test prods (red = positive pole / black = negative pole) to the measuring
object (capacitor). The display shows the capacitance after a brief period. Wait until the
reading stabilizes.
• In the case of capacitance measurement ≤ 1µF, it is recommended to perform a zero
adjustment. To do so, briefly push the ZERO key (9). A beep sounds and the LCD shows
< ZERO > to confirm the zero adjustment. Each time you push the ZERO key, the display is
zeroed. Push and hold the ZERO key for approx. 2 seconds to deactivate this function. The
display no longer shows the < ZERO > symbol. The device is now in normal measurement
mode without zero adjustment.
• The measuring range is exceeded or the circuit interrupted if the LCD shows < OL > (for
overload).
• After measurement, remove the test leads from the test object and turn off the digital clamp
multimeter.

i) Non-contact voltage detection "NCV"

The voltage detector is intended as a means for quick testing and is not a
substitute for contact voltage detection. This method is not permissible for
checking the absence of voltages in order to perform work.
The NCV function (non-contact voltage detection) is used to detect the presence of alternating
voltage in conductors. The NCV sensor is located in the tip of the clamp.
Always test the NCV first on a known AC voltage source to prevent false reads. False
reads pose a risk of electric shock.
Now continue as follows:
• Turn the rotary switch (3) to NCV.
• Bring the NCV sensor as close as possible to a conductor. The distance may not exceed
max. 8 mm.
- In the case of AC voltage ≤100 V/AC, < EF > lights up on the LCD.
- In the case of AC voltage >100 V/AC, the signal strength is indicated via 4 bars "――――".
Beeps sound and the NCV signal symbol (2) flickers.
Due to the high sensitivity of the NCV sensor, the NCV signal symbol may light up in the
presence of static charges. This is normal and not a malfunction.
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