Tracing An Underground Circuit - Chauvin Arnoux LOCAT-N C.A 6681 Manual De Instrucciones

3.2.8

TRACING AN UNDERGROUND CIRCUIT

Preconditions:
The circuit measured must not be live.
•
Connect the transmitter as shown in Fig. 17;
•
The transmitter must be correctly earthed;
•
Select the automatic mode of the receiver;
•
Use the power of the signal displayed to find and trace the circuit.
•
Remarks:
The distance between the earth wire and the circuit to be located must be as
•
long as possible. If this distance is too short, the signals and the circuit
cannot be located precisely.
The depth of detection is strongly influenced by the earthing conditions.
•
Select suitable receive sensitivities to locate the circuit precisely.
If you move the receiver slowly along the circuit to be located, you will see
•
that the screen changes somewhat. The most powerful signals represent the
precise position of the circuit.
The longer the distance between the signals transmitted (by the transmitter)
•
and the receiver, the lower the power of the signals received and the lower
the depth of detection.
C.A 6681 Cable locater
English
Fig.17
57