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OPERATION IN EACH SITE SITUATION
6-3 Detection of parallel pipes in close proximity
*please use Direct mode as much as possible if there are parallel pipes.
Set the transmitter to Inductive mode approximately 2 meters off the pipeline, as shown
1.
below (A).
Locate pipeline A and B. The location of pipeline A is accurate, whereas the location of
2.
pipeline B may be slightly distorted, as shown in the diagram below.
Move the transmitter over to pipeline B, approximately 2 meters off pipeline B.
3.
Locate pipeline A and B.
4.
*Depending on field conditions, the line indications may be slightly distorted.
Place the transmitter above each pipeline and take depths. Compare the depths gathered
5.
as shown in the diagram below.
(
Level Meter Fluctuation
)
Width on Max. sensitivity
B
A
(Figure1)
A
Detection by Induction Mode
As shown in Fig. 1, it is confirmed that the buried pipe is in parallel
because the maximum sensitivity width is wide.
If you want to detect pipeline A, set the transmitter within 2 m from
the maximum sensitivity point, as shown in the pipe diagram.
030
080
- 38 -
B
A
below 2 m
010
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