B&K Precision SEFRAM 7212 Manuel Utilisateur page 48

3.5 Non-contact electricity verification (NCV) / Live wire
detection (Live)
4. Turn the knob switch to the "
key to switch NCV or Live function.
5. Under the NCV function, place the NCV sensing area close
to the wire to be measured. When the AC voltage is
detected, the buzzer will make an intermittent sound,
which varies with the intensity of the induced voltage.
Meanwhile, the number of "
display screen. The more the number, the stronger the
induced signal.
6. Under the Live function, insert the red probe into the "
"jack, and the black probe is not connected.
Connect the red probe to the cable to be measured.
When the detected electric AC voltage is greater than
about 36V, the buzzer will emit intermittent sound,
which varies with the intensity of the induced voltage.
Meanwhile, the number of "
display screen. The more the number, the stronger the
induced signal.
Note: NCV mode can also connect the probe in Live
mode to judge the live wire, but the sensitivity will be
higher than that in Live mode.
" position and press the
" is displayed on the
" is displayed on the
48
Measurement instructions