C-SCOPE L2 Series Instruction Manual page 41

Pipe Tracing using a Sonde:
3. Keeping the blade of the Locator in line with the Sonde,
move the Locator backwards and forwards over the length
of the Sonde. Adjust the sensitivity until a clear peak
response is shown on the display as the Locator passes
directly over the position of the Sonde.
4. Move the Locator from side to side over the position of
the Sonde. A similar peak response should be seen on the
display as the Locator passes directly over the position of
the Sonde.
The Locator is now set up ready for tracing the Sonde.
5. Push the Sonde up the pipe.
6. With the Locator turned on, walk from the pipe access
point in the direction that the Sonde was pushed. A strong
peak signal directly over the Sonde should be detected with
two lesser "ghost" signals found either side of the Sonde's
true position. These ghost signals are always weaker than
the main signal and should not be mistaken for the true
Sonde signal.
7. Pinpoint the Sonde position by moving the Locator back
and forth and from side to side to get the peak response.
8. Push the Sonde further up the pipe and repeat the
pinpointing process.
See page 46 for Depth Measurement using a Sonde.
Tracing a Sonde
3./ 4.
6.
  
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