User Manual

15
Chapter 3 Calibration
The purpose of the calibration is to enable the operational characteristics of the detector to meet the requirements of the security
level. Calibration the detector before the security checkpoint starts work. Prior to calibration, probe requirements should be
determined, for example, what is most dangerous goods likely to be detected. The detector should be calibrated with a reference
representing the danger level.
Principle
1. Select the Operating Frequency
Select the interference that has the lowest level of background (up to 1 to 2 red light flashing)
2. Set the Detection Sensitivity
Set the security level first, and then the zone sensitivity. Set proper parameters, as a high detection sensitivity may affect
the anti-interference of the detector.
3. Choose
Set the detection program that generates the lowest metal signal when walk-through the detector with harmless items.
4. Test
Daily inspection:
- Calibration with test objects calibration
- Detective door mechanical fixation
Factory Settings
The manufacturer setting is a good starting for calibration. The calibration must be carried out at the installation place. Due to the
different installation environment, the final detection parameters will vary slightly depending on the installation place.
The parameters set by the manufacturer are defined in the laboratory environment and may differ significantly from the actual
installation environment.
Calibration Progress
1. Select operation frequency
2. Set detection sensitivity: safety level and zone sensitivity
3. Test
I. Select Frequency:
Select an appropriate operating frequency (with a sufficiently low level of background interference) and start the calibration.
1 Install the detector according to the instruction.
2 Make sure that the tester are not wearing any clothing containing metal components.
II. Set Detector Sensitivity
The purpose of the detection sensitivity settings is to find the lowest sensitivity settings so that the test object can still be detected
with low sensitivity under the current detection program. It is possible to achieve a high pass rate by minimizing the useless alarm
caused by non-hazardous substances.