Underground metal detector is a new product improved by using foreign advanced technology and imported components. Compared with the old products, the instrument in the design to strive for excellence. It has the advantages of large detection depth, accurate positioning, strong resolution and convenient operation.

Underground metal detectors are mainly used to detect and identify metal objects buried in the ground or other media. In addition to military applications, it is also widely used in:

1. Customs inspection and security check

2. Investigation and search

3. Detection of metal foreign bodies in raw materials, fuel and food

4. Check for metal foreign objects in mail and luggage

5. Detection of underground pipelines and lines

6. Archaeology, exploration and discovery of buried gold and silver treasures and metal artifacts

7. Scrap metal acquisition industry

The following is a brief talk about the use of underground metal detectors. Underground metal detectors are divided into detection boards, hosts, connecting rods and other major components, and some are also equipped with rechargeable batteries, chargers, headphones, backpacks or suitcases.

After assembling the underground metal detector, start debugging. First, set the detection mode to "ground balance" and the setting mode to "normal". Turn on the power switch of the host, and then adjust the critical sound (subject to the faint beep just heard, not too big or too small, because that will affect the detection sensitivity). The detection disc is then swept over the metal object to see if an alarm sounds. Then start to adjust the detection depth, press the "memory" button at the bottom of the display, turn the "sensitivity" knob clockwise to make the dividing line, release the "memory" button, sweep the detector from the metal object, and then press "Memory" button, turn the "sensitivity" knob clockwise to the dividing line, and then scan the metal object, and so on.

In use, due to the different ground environment, some places will produce geological and mineral reactions, that is, the underground metal detector will alarm no matter where it is placed. Then you need to adjust the balance to eliminate interference. Under normal operating conditions, press the "Memory" button and turn the "Ground Balance" knob clockwise, one scale at a time, at least until the interference is eliminated (Note: eliminating geological and mineral reflections will cause a decrease in sensitivity). At this time, the detection can be started normally. During normal detection, keep the detection panel level with the ground, about 5-10cm from the ground, and scan the ground with a large S-shaped circuit. Pay special attention to the changes in the scale of the indicators. Sometimes the electromagnetic induction signal of tiny metal or long-distance metal is not enough to make the machine sound an alarm, but it will change the scale indicator needle.

If it is confirmed that the underground metal detector has detected, it is necessary to confirm whether the metal has mining value. At this time, you need to use the recognition mode, press the "memory" key, turn the detection mode switch from "ground balance" to "recognition", and then constantly fine-tune the balance and repeatedly test the constituent metal. After accurate debugging, if it is iron and other ferrous metal detectors, no alarm sound. If you can continue to make a sound, it proves that the underground is copper, silver, gold and other non-ferrous metals.