TIANJIN GREWIN TECHNOLOGY CO.,LTD.
Web:www.grewin-tech.com Wh86-13072088960
Email:[email protected]
TIANJIN GREWIN TECHNOLOGY CO.,LTD.
Address:
2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China
.
26
1) Check battery voltage
: Turn on the receiver and check power. Fully recharge the receiver
before use.
2)Frequency selection
: Press Frequency key and set the required frequency. Set the same
frequency with the transmitter if the active mode is being used.
3)Sensitivity setting:
Adjust the up or down key to increase or decrease the receiver gain so
that the bar reading is at 60-80% of the full scale.
4)Mode setting:
Press the mode key to select the appropriate operating mode as needed. The receiver
provides peak mode, wide-peak mode, broad-arrow modeandvalley mode.
(2) Peak(Maximum) Method
The peak method uses a single horizontal antenna (broad) or double horizontal antennas to
receive the horizontal component of the target pipeline signal and the receiver gets the maximum
responsewhen the receiver is on the target pipeline. The single horizontal antenna wide-band
mode is used to locate deeper pipelines with the highest signal sensitivity. When the receiver is
directly above the detected pipeline, the signal strength is the largest, the response range is wide
but the positioning accuracy is lower than other methods. The double horizontal antennas peak
mode has a steeper peak response than the single horizontal antenna wide-peak mode, the
measurement position is relatively accurate but the signal strength is weaker. When the receiver is
above the positioning pipeline, the signal strength reaches its peak.
First of all, position the target pipeline. Generally, keep the receiver perpendicularly to ground with
the receiver body pointing at the transmitter. If the signal is directly connected to the target
pipeline, walk around the transmitter with the transmitter as the center and 5-10 meters Radius (if
the inductive connectionis selected, the radius need be greater than 20 meters), adjust the
sensitivity so that the receiver maintains a certain static signal.
Move the receiver gently towards both sides in the presence of a peak response, find the exact
location of the peak response and mark it, which is the location of the target pipeline.
Illustration of Peak Mode
