18
Performing acoustic pin-pointing
Procedure
DANGER
Danger to life due to electric shock!
» Take all necessary safety measures [Ü "Before
commissioning”].
» Discharge and earth the test object before
touching it.
1. Connect the test object properly according to the user manual for the cable fault
location system.
Example: Connect the SSG to a 3-phase screened cable
2. Switch on the SSG and select the lowest possible voltage range that is higher than
the breakdown voltage of the fault. Example: If the breakdown voltage is 6.5 kV,
select the 8 kV voltage range.
3. Set the maximum permissible output voltage in the selected voltage range and the
surge sequence.
4. Switch on the high voltage on the SSG.
5. Ensure that the tripod is mounted on the underside of the AGP.
Pin-pointing on meadows or loose surfaces (sand, snow, etc.): Also screw on a suita-
ble contact tip [Ü “Product information”].
6. Position the AGP on the ground with the directional arrow in the direction of the
cable route.
7. Make sure that the AGP is in good contact with the surface of the ground.
8. Switch on the AGP, the headphones and the CU.
The header of the touchscreen shows that the devices are connected.
9. If you wish to limit the volume of the headphones to 85dB(A), make the following
selection on the home screen:
Settings
>
Sound
>
Volume
[Ü “Basic settings”].
10. If you wish to use the loudspeaker of the CU instead of the headphones, make
the following selection on the home screen:
Settings
>
Sound
>
Output
[Ü “Basic
settings”].
protrac® pin-pointing system 822-186-4
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