Special Applications; Finding Breaks/Opens - Beha-Amprobe AT-7030-EUR Bedienungsanleitung

4. SPECIAL APPLICATIONS

4.1 Working with RCD protected circuits
Method 1 – Whenever possible use separate Neutral connection as it is described in
Energized SMART and TIP SENROR modes
Method 2 – If separate Neutral connection is not practical:
• De-energize the circuit
• Connect a transmitter directivity to the wire as described in De-Energized TIP SENSOR
mode.
• Perform tracing as described in the desired De-Energized Mode (TIP SENSOR for wire
tracing or BREAKER for breaker / fuse identification).

4.2 Finding Breaks/Opens

It is possible to pinpoint the exact location where the wire is broken using the de-energized
TIP SENSOR mode, even if wire is located behind walls, floors or ceilings:
1. Make sure that wire is de-energized.
2. Use steps described in the De-Energized TIP SENSOR mode to connect the transmitter
and perform tracing. (see section 3.3)
3. For best results, ground all the wires that run in parallel using special test lead
The tracing signal generated by the AT-7000-TE transmitter will be conducted along the wire
as long as there is continuity in the metal conductor. To find the place of fault, trace the
wire until the signal stops. To verify the place of the fault, move transmitter to the other
end of the wire and repeat tracing from the opposite end. If signal stops at the exact same
location you have found the place of the break.
Note: If the place of fault is not found, the open may be a high resistance break (partially
open circuit). Such a break would stop higher currents from flowing but will conduct
the tracing signal through the break. Such faults will not be detected until the wire is
completely open.
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