10
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Calibrate the equipment
Before calibration operation, it is recommended to wear white cotton
gloves when handling the calibration plate. Avoid touching the colored surface
to prevent contamination. Make sure the calibration plate is complete and
clean, and the device is powered on for more than 10 minutes. Check that the
sensor and NIR light LED are clean without any pollutant to ensure accuracy
after calibration.
Place the colored side of the calibration plate on a flat surface, then place
the KN-201 on the calibration plate. Make sure there is a solid fit all around.
Press and hold
[Ground/Setting]
button for more than 3 seconds to enter into
system setup mode (please refer to the corresponding chapter for details).
Select "Calibration" Entry and select "Yes". The screen will show "Calibrate"
and "Wait...". This means that calibration procedure is being performed. Do
not move until "OK" is shown. Repeat the above action if "Fail" occurs. If "Fail"
continues to occur, it may be because the sensor or light source LED is dirty.
Try cleaning them before performing the calibration again.