10.5 Performing test measurements
Before using the cable detector for the rst time, familiarise
yourself with its function� This works best with a simulated
error source�
1� Take a piece of 3-pole installation cable (approx� 5 me-
ters) and attach it temporarily to a wall that is accessible
from the front and back� Remove the jacket isolation ap-
prox� 1�5 m away from the cable end� Cut one of the
cable's conductors�
2� Connect the transmitter to the test cable as indicated�
3� Connect the interrupted conductor to the red measuring
socket, the other conductors to the black one� Also con-
nect the black socket to the earth potential�
4� Switch on the transmitter and receiver�
5� Move the receiver along the cable until the interruption is
recognised� Repeat this on both sides of the wall�
6� Vary the signal strength at the transmitter or the sensitiv-
ity at the receiver (manual mode) for the best possible
test result�
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