Huazheng HZ-5000, Руководство пользователя

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When using the valley (Minimum) mode to detect the target pipeline, it should
periodically switch to the peak mode in order to verify the exact location of the target
pipeline. Using the peak mode for fixed positioning and marking, and then switch to the
valley (minimum) mode, mark the location of the pipeline valley (minimum) value. If the
mark in peak mode and that in valley modeare same, then it can be considered that the
positioning is accurate. If the two are not consistent, then the fixed-point positioning
can be considered inaccurate. The actual location of the target pipeline should be close
to the location of the peak mode.
(4) Peak arrow mode
Collation map between valley mode and peak mode
The peak arrow mode uses both a vertical antenna and two horizontal antennas to
receive the vertical and horizontal components of the target line. The receiver gets the
maximum value with a left and right arrow response when it is on the target line. If the
maximum value is in the same direction with the arrow, you can think that the point of
positioning is accurate. If the two are not consistent, then the fixed-point positioning can
be considered inaccurate. The actual location of the target pipeline should be close to the
location of the peak mode. With this method, there is no need to detect the peak and
valley during the cycle of the switch. The operation is more simple and quick.
During the detection process, the strength bar will gradually decrease as the
distance between the receiver and the transmitter increases, and it is necessary to hold
the rising key to increase the sensitivity to compensate for the signal attenuation. If the
receiver strength bar is suddenly reduced, stop immediately and re-detect the position of
the pipeline at the point, increase the sensitivity and search the area round the radius of 2