Benning VT 2 Mode D'emploi page 13

4. Howtheindicatorworks
Indication of electric fields:
- The BENNING VT 2 phase indicator and magnetic field tester detects electric fields generated by
phase/external conductor voltages from 200 V to 1,000 V AC (45 Hz to 65 Hz) on. A toggle function
increases the sensitivity to enable the detection of electric fields of voltages of approx. 12 V AC or
higher.
- If an electric field is detected, the probe tip
ted. The flashing frequency of the red probe tip
increase with the electric field or the voltage applied increasing as well.
- The BENNING VT 2 phase indicator and magnetic field tester can be used to determine the phase
(external conductor) of an AC voltage.
- The test does not require any current flow and no electrically conductive contact with the system
part, socket or insulated line.
- Please observe that without pressing the push-button
sufficiently strong fields with a phase/external conductor voltage of 200 V AC or higher.
If the BENNING VT 2 phase indicator and magnetic field tester does not react, the distance to the live
system part might be too large, the system part might be shielded or the insulation might be too thick.
Indication of magnetic fields:
- The BENNING VT 2 phase tester/magnetic field tester detects sufficiently strong magnetic fields
generated by electromagnetic switches (contactors/relays) and valves (solenoid valves). It detects
permanent magnetic fields as well as AC or DC magnetic fields.
- If a magnetic field is detected, the test probe
5. Phase/externalconductortestofanACvoltage (figure B)
- Place the probe tip
- If the phase (external conductor) has been detected, this is confirmed by an acoustic signal and by
the probe tip 1
- Press the push-button
approx. 12 V or higher can be detected.
Attention!
Please observe that even if the BENNING VT 2 does not indicate a phase (external conductor), a dan-
gerous voltage may be applied to the test object nevertheless. For determining the absence of voltage,
only use a two-pole voltage tester complying with the DIN EN 61243-3 (VDE 0682-401) standard, e.g.
a DUSPOL voltage tester.
®
5.1 Switchingovertohighsensitivity
- Press and hold the push-button
voltages of approx. 12 V or higher can be detected. The high sensitivity is indicated by the H LED
(red) lighting up.
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6. Testingofinterruptionsoflivelines (figure C)
To localize interruptions of live lines (e.g. a cable break in a cable reel or defective lamps in a chain of
lights), pass the probe tip
other end of the line. The point of interruption is located as soon as the phase (external conductor) is
no longer indicated by the acoustic signal and the test probe lighting up.
For testing a cable reel, make sure to turn the shock-proof plug by 180° in order to connect both lines
to the phase (external conductor) of a shock-proof socket.
Note:
If the electric field of the live cable is too weak, the sensitivity can be increased by pressing the push-
button 4 .
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onto the assumed phase (external conductor) of the system part.
1
lighting up in red color.
4 to increase the sensitivity for detecting electric fields so that voltages of
4
1 along the insulated line from the feeding point (phase) in direction of the

lights up in red color and an acoustic signal is emit-
1
1 as well as the frequency of the acoustic signal
4
1 lights up green.
to increase the sensitivity for detecting electric fields so that
BENNING VT 2
, the BENNING VT 2 only responds to
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