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2. In the pipeline detection process, the stronger the signal displayed on the
Nixie tube of the detector, the closer the pipeline will be detected by the
instrument.
3. In the detection process along the pipeline, if the signals received by the
receiver suddenly attenuate, the localized position is where the blocking takes
place.
4. Adjust the transmitting power of the emitter to suit different detection radii.
Select manual mode on the receiver and the appropriate sensitivity to
precisely locate the narrow part.
3.1.7 Detection of the metallic water pipe and the metallic heating pipe.
Preconditions:
* The pipe must be made of metallic material (such as galvanized steel).
* The pipe to be detected must not be on the ground. There should be a high
resistance between the pipe and the ground (otherwise the sensing distance will
be very short).
* Use a connecting cable to connect the grounding of the emitter to the ground,
and properly anchor the end of the ground.
* Use a connection cable to connect the "+" socket of the emitter to the pipe to
be detected.
The detection of the key of the metal pipe and the heating pipe. Preconditions
are shown in Fig. 3-1-7a and Fig. 3.1.7b respectively:
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