Underground metal detector troublesshooting

Hand-held metal detectors are designed to detect metal objects carried by people or objects. It can detect metallic objects that people carry, such as parcels, luggage, letters, and fabrics. The special appearance of its sensitive surface makes it easy to operate. Superior to ring sensor type. Ultra-high sensitivity, special application. Such as prisons, chip factories, archaeological research, hospitals, airports and so on. Today we come to understand the troubleshooting method of hand-held metal detectors:

Phenomenon 1:

Symptom: The alarm or vibration does not stop after 1-2 seconds boot

Analysis of reasons: This phenomenon usually occurs due to high sensitivity and power shortage. Some users do not notice that the battery voltage is lower than the working voltage after using for a period of time. It is often thought that the long sound of the detector is not only treated as a fault.

Method of exclusion:

1. When the alarm is turned on, the sensitivity is adjusted to the alarm.

2. If the adjustment cannot be eliminated, replace the battery or use it after charging.

Note: At this time, turning down the sensitivity does not affect the detection accuracy.

Phenomenon 2:

Symptom: The detector with vibration, sometimes the buzzer works normally, and the vibration motor cannot stop when it goes to vibration.

Analysis of the reasons: This type of phenomenon usually occurs when the user does not notice that the voltage is dropping after a period of use. Because the motor consumes more power than the buzzer, the voltage at this time can only ensure the normal operation of the buzzer.

Method of exclusion:

1. In the case of vibration, turn down the sensitivity.

2, replace the new battery or charge and then use

Note: At this time, turning down the sensitivity does not affect the detection accuracy.

Phenomenon three:

Symptoms: Red light on, no alarm, no vibration

Analysis of the reasons: This phenomenon occurs, usually the detector is disabled for a period of time, forget to remove the battery, the battery is slowly discharged to a long-term.

Method of exclusion:

1, just replace the battery.

2. Pay attention to whether the battery compartment is contaminated by the leakage of the battery. If it is contaminated, it must be cleaned in time. Otherwise, the battery buckle or the circuit board may be corroded and damaged.

3, can use pure alcohol cleaning or special electronic cleaning agent cleaning.

Phenomenon 4:

Symptoms: Alarms or slight shaking are also alarms when detecting anything after power on.

Analysis of reasons: Generally it is because the sensitivity is adjusted too high, or after adjusting the sensitivity to detect small metal, it is not timely adjusted to the original normal position.

Remedy: 1, as long as the sensitivity can be adjusted down.

Phenomenon 5:

Symptoms: After starting up, it appears to be normal and normal. It will not be normal. It will alarm for a moment and it will not reflect anything at all.

Analysis of the reasons: Generally, when the user loads the battery, the battery buckle is not pressed or only one is pressed, and the other is not in contact when in contact. There are also individual battery buttons that do not match the battery and appear looser.

Method of exclusion:

1. Open the battery box and re-press it.

2, the battery button is too loose, just use pliers to gently clamp.

3, if the battery buckle is not elastic or damaged, replace it. Pay attention to +- polarity when changing.

Phenomenon 6:

Symptom: The GC-1001 is special. The phenomenon of long-sounding occurs after power on or after power on.

CAUSE ANALYSIS: The detector does not need adjustment and the switch is also special: forward is high sensitivity, backward (cannot be locked) is lower sensitivity, and the middle is closed.

Remedy: When the whistling occurs, simply press the "RESET" reset button in the middle of the front of the detector and press the "RESET" button.

Phenomenon 7:

Symptom: The position of the sensitivity adjustment hole of each model and how to adjust the sensitivity.

Cause Analysis:

1. The adjustment hole is on the front of the battery cover on the back of the detector, a small yellow screw inside the hole;

1. All: Clockwise increase sensitivity and counterclockwise decrease sensitivity.

2, only need to use a micro screwdriver to adjust, with direct external adjustment by hand.