Line interruption in the plastic-sheathed cable.
The ground connected to the transmitter should be earth from a properly
earthed socket or a water pipe that is properly earthed.
When tracing line interruption in a multicore cable, note that all remaining leads
in plastic-sheathed cable must be grounded in accordance with the regulations.
This is required to avoid crosscoupling of the fed signal ( by a capacitive effect ).
The tracing depth for sheathed cable and conductors are different, because the
individual leads in the sheathed cable are twisted around themselves.
The transition resistance of a line interruption must be > 100 kOHM. The
verification of resistance can be done by using a multimeter.
Systematically circle around the interruption while changing the sensitivity of the
receiver. By this means, the line interruption can be located in the end.
Figure 10
Note:
Increasing the transmission level from level 1 to level 3 with the " "
button increases the detecting distance of the receiver by a factor of about 4.
Setup of the receiver: manual mode, minimal sensitivity. If necessary, adjust
the sensitivity of the receiver according to the actual condition during detection.
Max. tracing depth: about 2 meters.
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