Pinpointing Cable Faults in “Digiphone” Mode
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4.3
General information on locating faults with the device
4.3.1
Interpreting the measured value and direction data
The time difference values logged at the current position are always shown on the left-
hand side of the display. The values are shown either in grey or black according to the
following agreement:
The most recently taken measurement is
either the first measurement at a new
position or it deviates by more than 10%
from the previous measurement
The most recently taken measurement
deviates by less than 10% from the
previous measurement
If due to constant fluctuations the measurement values are shown only in grey for
a longer dwell time, it is recommended to carefully listen to the audio signal. Also,
if no periodic acoustic signal can be made out here, it is highly probably that the
distance to the fault location is simply too great.
A change of position is recognised automatically by the sensor and should, if possible,
only be carried out when the current measurement value is shown in black (see above).
Only in this case is this last measurement value moved to the right-hand side of the
display and regarded as a comparison value at the new position.
The first measurement at a new position is always displayed in grey.
Before position change
After position change
Measurement display
Position change
