How to use a hand-held metal detector

Hand-held metal detector is a small metal detector, which is usually operated by hand. It has a wide range of uses, mainly used for public security inspection, factory theft prevention and cheating prevention in examination rooms. Hand-held metal detectors give an alarm through electromagnetic induction of metal objects, and the alarm methods mainly include sound and light and vibration. Its use method is very simple. Hold the handle with your hand, press the start button with your thumb, then release it and scan it back and forth on the surface of the person (or object) being inspected. Let's see how to use a hand-held metal detector. 1. Introducing hand-held metal detectors

Handheld metal detectors are designed to detect metal objects carried by people or objects. It can detect weapons, explosives or small metal objects carried by people in packages, luggage, letters, fabrics, etc. The special appearance of its sensitive surface makes the operation simple and easy. It is superior to the ring sensor hand probe. Super high sensitivity, special application. Such as prisons, chip factories, archaeological research, hospitals, etc.

Hand-held metal detectors (hand-held metal detectors, imported hand-searched metal detectors) are used to check the specific position where people carry metal, and can also be used in conjunction with metal detection doors. When the "security door" alarms to find a metal object, you can use a hand-held metal detector to find the exact location where the metal object is hidden. The metal detector adopts a rectangular probe with a detection area of 12 cm. When examining the human body, the examination work is completed at one time from top to bottom.

Second, what are the uses of hand-held metal detectors?

1, public * * * security check

For example, airport security, prisons, courts, inspection offices, banks, hotels, large conferences, sports competitions, concerts and other public safety.

2. Factory safety

Many factory products contain metal components. In order to prevent the loss of enterprise products, security guards inspect employees in important workshops and at the door.

3. Anti-cheating in exams

In recent years, college entrance examination, postgraduate examination, civil service examination and other examination rooms prevent candidates from carrying cheating tools such as wireless headphones, and each examination room will be equipped with some hand-held detectors. At present, many provincial education systems in China are equipped with such products.

Third, how to use the hand-held metal detector

1. Before use, open the battery box cover on the back of the instrument and install the battery. This instrument uses 9V laminated battery. Please note that the nominal voltage of the battery must be 9V and cannot be replaced by other voltages.

The power consumption of this instrument is very low, and each newly installed battery can work for about 50 hours. When the battery energy drops to 10%, the instrument can no longer work normally. At this time, the horn will make an intermittent click, prompting us to replace the new battery.

3. When in use, the security personnel hold the handle with their hands, press the start button with their thumbs, and then release it. The signal light of the metal detector begins to blink, and the horn will give a very slight buzzer, indicating that the instrument is in working condition.

4. The staff will scan back and forth on the surface of the inspected person (or object) with the opened instrument. If there is a metal object, the instrument will make a sound. The main inspection site is the waist of the person, and both sides of the waist (pocket) need to be inspected; Then check the shoulder blades and underarms of the left and right arms, and the inside and outside of the legs and ankles are also the key inspection areas.

After the inspection, you should press the stop button to avoid wasting the battery.