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OPERATION IN EACH SITE SITUATION
080
030
6-7 Detection of branch pipes
Direct Mode
(1) In the case of the figure below, the grounding position of the
ground is such that the ground is grounded on the right side
for detecting the branch pipe on the right side.
Set the frequency to 83 kHz.
(2) As shown in the figure, the receiving antenna moves about
1 m away from the main pipe, in parallel with the direction of
the thick arrows, and looks for the maximum sensitivity point.
030
- 42 -
Ground location
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