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Operating Principle
5.15 Tracing conductors within the soil (single-pole method)
The transmitter should be connected as shown in Figure 15.
WARNING : Ensure the circuit is switched off and isolated (dead).
Ensure the distance between the connection to the conductor and earth is greater than 2.0 m. If the distance
is too small it becomes impossible to accurately identify and trace the injected signal.
The maximum tracing depth is 2.0 m. This is reduced depending upon the characteristics of the soil the cable
or conductor is buried in.
Set the receiver to automatic mode.
Trace the conductor using the signal intensity display. Circle the receiver slowly across the conductor
and watch for the display values to change. When the display shows the maximum signal intensity the
receiver is directly over the conductor.
Figure 15:
The signal intensity level will decrease as the distance from the transmitter increases.
5.16 The detection range can be increased by connecting to Live conductors
If the transmitter is attached to the line and neutral, the signal will be reduced as the feed and return cables
running side by side cancel each other out (as shown in figure 16).
If the cores are twisted, this can lead to a further reduction in the transmitted signal.
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