Following lines with higher location depth.
Example 10 (dual-pole application)
Conditions:
1. The current circuit must not be live.
2. Connect the transmitter in compliance with the figure.
3. The distance between go-and-return line must be minimum 2.0m to 2.5m or more.
4. The receiver must be held at a right angle to the cable.
5. Proceed as described in the application example.
If the dual-pole application is carried out on multi-wire cables (e.g. NYM 3x1.5mm2), the
location depth is widely limited. The reason herefore is that the go-and-return lines are
installed very closely. Thus, a strong distortion of the generated magnetic field occurs. The
electro-magnetic field may not develop at the bottleneck.
This limitation can easily be eliminated when using a separate conductor to simulate the
return line. This separate conductor allows a larger spreading of the electro-magnetic field.
Any conductor or cable reel can be used as separate return conductor. When tracing the
conductors, special care has to be taken that the distance between go-and-return-line is larger
than the location depth. In practical applications, this amounts to approx. 2.0 m. Furthermore,
the receiver has to be held at a right angle to be cable to be traced. For this application,
humid walls, plaster, etc. have only an insignificant influence on the location depth
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