User manual

English
54 C.A 6681 Cable Locater
3.2.5 DETECTION OF THE CONSTRICTED (PLUGGED) PART OF A NON-
MET
ALLIC PIPE
Preconditions:

The pipe must be made of a non-conducting material (such as plastic);

The pipe must not be live;

The transmitter is connected to a metallic helical tube (flexible metallic tube or
pipe) and to an auxiliary earth as shown in Fig. 14;

The measurement method is identical to that used in §3.1 Getting started
Fig.14
Remarks:

If there is a current in the pipe, cut off its supply and connect it correctly to
earth when the pipe is not live.

One end of the pipe must be correctly earthed, and the earth of the
transmitter must be at a certain distance from the pipe to be located. If the
estimated distance is too short, the signal and the circuit cannot be located
precisely.