Cable fault pre-location Syscompact 2000 M pro
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7. Place a distance cursor at the point where the two traces diverge.
For a better evaluation, the trace of the first measurement can be moved or a difference
curve displayed.
Moving the trace
a. Press the COMPARE key.
b. Use the rotary knob to select the SHIFT button and press the rotary knob.
c. To move the trace horizontally, turn the rotary knob.
To move the trace vertically, press the rotary knob and then turn it.
d. To exit move mode, press the key.
Displaying the difference curve
e. Press the COMPARE key.
f. Use the rotary knob to select the DIFF button and press the rotary knob.
The difference between each point on the two traces is calculated and displayed as a
difference curve.
g. To display the two traces again, select the SPLIT button and press the rotary knob.
Displaying three traces
1. Perform a measurement on the first phase.
2. Save the measurement data.
Further information: Chapter Saving measurement data (on page 45)
3. Perform a measurement with the same settings on the second phase.
4. Press the FUNCTION key.
5. Use the rotary knob to select the Set REF button and press the rotary knob.
The trace of the second measurement is saved temporarily.
6. Perform a measurement with the same settings on the third phase.
7. Press the COMPARE key.
8. Use the rotary knob to select the Insert REF button and press the rotary knob.
The trace of the second measurement is inserted in the reflection image.
9. Press the FUNCTION key.
10. Use the rotary knob to select the button and press the rotary knob.
11. Use the rotary knob to select the measurement data of the first measurement and press
the rotary knob.
The traces of the first, second and third phases are displayed.
Recommendation if the fault position is not easily visible
If the fault position is not visible properly in the reflection image and the measurement has
been performed on a live cable, de-energise the cable and repeat the measurement with
the voltage protection disabled.
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