ZK-D3180
User Manual
Copyright©2021 ZKTECO CO., LTD. All rights reserved
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C.
Infrared Sensor
After the power is on, the metal detection door starts to work, and when no person or object
passes through the metal detection door, the infrared sensor can effectively stop the alarm,
and it can avoid false alarm. And the number of people passing through is counted accurately.
5.2
Adjustment of Detection Zone’s Sensitivity
1
The device must be in a stable position to achieve the best detection effect (refer
3.3
). To check whether the device is in a stable state, perform the following
steps:
a)
Power on the detector and check whether it is not shaking after one minute.
b)
The device should not alarm when the testing person did not carry any metal
items while walking through the detector.
2
You can exclude the small portable metal objects such as rings, key, belt buckle, shoes,
and so on, by following the steps given below:
a)
Choose a small metal as a sample. Increase the sensitivity, so that when the testing
person carries the sample and pass through the detector, and it would alarm.
b)
Decrease the sensitivity a little, carry the sample, and pass through the detector
again. If it still alarms, once again reduce the sensitivity, until the device does not
alarm when the sample is passed through.
Note:
If you want to decrease the sensitivity in a certain zone, you must only adjust the
sensitivity of the relative zone. After implementing the above adjustments, the metal which
smaller than the sample will not alarm, but the metal objects bigger than the sample can be
detected accurately.
