What are the detection modes of underground pipeline detector

Views: 2     Author: pqwt     Publish Time: 2022-08-02      Origin: PQWT

Underground pipeline detector use tutorials and installation methods: pipeline detector is the current buried pipeline positioning and external corrosion layer detection of widely used equipment, due to the limitations of user skills and experience, the instrument in the use of the process there is a poor understanding of the principle of the instrument, the use of improper methods, and did not play out the effectiveness of the instrument should have. Underground pipeline detector is the use of electromagnetic induction principle of the direction and depth of underground metal pipes and cables for accurate positioning and the outer surface of the pipeline fault points. The operator can display the signal strength, bar grid, arrows and sound tips to determine the location of the cable and the fault point through the large LCD screen. Underground pipeline detector can not only be used to find the cable (with or without power) path, but also can be used to find direct burial cable fault. Pipeline detector can be in the case of non-excavation, the underground pipeline, cable, fiber optic cable for precise positioning and depth measurement. With super anti-interference ability, accurate positioning and depth measurement function, suitable for underground detection of various metal pipelines and patrol, pipeline management and maintenance, municipal planning and construction, power supply and other departments of pipeline detection, is one of the necessary instruments for pipeline maintenance units.

Underground pipeline detector

Pipeline detection instrument overall components: transmitter, receiver, connecting wiring, clamp, strong magnetic, file, grounding rod, transmitter charger, receiver charger; warranty card, manual, accessories list.


Pipeline detector direct connection method.


1, the connection line connector connected to the transmitter will be red alligator clips connected to strong magnetic, strong magnetic adsorption on the pipe; black alligator clips connected to the grounding rod.


2, open the transmitter, press the F key to transmit the frequency to 512Hz, the gain will be adjusted to 5 files. The transmitter should be placed parallel to the top of the pipe.


3, open the receiver, adjust the frequency to 512Hz corresponding to the transmitter.


4, detection mode select the peak arrow mode, long press the + key to adjust the sensitivity to the appropriate size, handheld receiver and transmitter vertical, left and right movement detection; the largest response is the location of the target pipeline. In the pipeline directly above the press i key to measure the depth.


Pipeline detector clamp method.


1, the clamp connection line to the transmitter, clamp clamp on the target cable.


2, turn on the transmitter, the instrument automatically selects 33KHz, the gain will be adjusted to 5 files. The transmitter should be placed parallel to the top of the cable.


3, open the receiver, the frequency is adjusted to 33KHz corresponding to the transmitter.


4, detection mode select peak arrow mode, long press the + key to adjust the sensitivity to the appropriate size, handheld receiver and transmitter vertical, left and right movement detection, the response is the largest place is the location of the target pipeline. In the pipeline is above the press i key to measure the depth.


Pipeline detector induction method.


1, open the transmitter, the transmitter frequency to 83KHz, the gain will be adjusted to 5 files.


2, open the receiver, the frequency will be tuned to 83KHz corresponding to the transmitter.


3, detection mode select peak arrow mode, long press the + key to adjust the sensitivity to the appropriate size, two people while holding the receiver in parallel with the transmitter vertical, left and right movement detection, the response of the largest place that is the location of the target pipeline.


Note: The receiver and transmitter are separated by a distance of at least 10 meters, the transmitter should be aligned parallel to the receiver, and the two people move in parallel above the measured area. Press the i key directly above the pipeline to measure the depth.


Cautions.


(1) The direct connection method must be disconnected if it is a power cable, and then operated. (2) If the pipe corrosion is serious, it needs to be polished with a file. Then connect with strong magnetic adsorption. (3) If the grounding point soil is relatively dry can pour some water to improve the grounding effect. If the conditions allow the grounding point from the transmitter shall not be less than 5 meters. (4) induction method can only choose 65KHz and 83KHz two kinds of frequency, no direct connection signal output line or clamp inserted, the instrument automatically select the induction mode, induction mode frequency can only choose 65KHz and 83KHz two kinds; clamp method can only choose 33KHz a frequency, when the clamp access to the instrument, the instrument automatically choose 33KHz frequency, do not need to artificially select Clamp the use of frequency.


PQWT

PQWT is a professional institution in China who engaged in the R & D, manufacturing and sales of underground water detector, water leak detector, leakage automatic analyzer, cavity detector, mine locator, dam piping detector, and borehole inspection camera. 

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