Calibration - Optex Virtual Loop Installation Instructions Manual

7-3

Calibration

Calibration function
1
This function memorizes the background of the detection area when no pedestrians or vehicles are
present. This function ensures the stability of vehicle detection by recording the environment. Perform
calibration after every sensor installation.
This process makes the sensors performance higher and more stable.
How to perform calibration
2
[1] Verify that there are no vehicles, pedestrians, work tools, or any other temporary objects which may
be removed in the detection area. If anything is present, remove it from the detection area.
[2] Press the Calibration button in the App and confirm that the screen has changed to the
"Calibrating" screen.
The operation indicator blinks alternately in blue and green during calibration.
(3) When the calibration is completed, the screen in the App changes,and the operation indicator blinks
in green (slow).
NOTE
Performing calibration properly
• Perform calibration after every sensor installation.
• It must be performed without vehicles, pedestrians, work tools, or any other temporary
objects which may be removed in the detection area.
• If a vehicle or pedestrian enters the detection area during the calibration, try again.
• If any noticeable changes occur around the detection area (such as construction of a wall or
fence), you must perform calibration again.
• If the sensor' s installation height or settings have been changed after the calibration,
perform calibration again.
Forced termination of calibration
3
Calibration stops automatically in up to 10 seconds. If an error message is displayed and the operation
indicator blinks in green (slow), refer to the following to remove the cause.
NOTE
Error while calibration
• The operation indicator blinks purple : Microwave reflection in the detection area is too high.
In this case, calibration is performed, but detection performance may be degraded.
Calibration will be performed, but detection performance may be degraded.
• The operation indicator blinks alternately in red and blue (fast) : Microwave reflection in the
detection area is extremely high. In this case, calibration is not completed due to an error.
• The operation indicator blinks alternately in red and yellow (fast) : If the sensor reacts
during calibration, a calibration error occurs. Calibration error occurs if the sensor reacts
during calibration. In this case, calibration is not completed due to an error.
• The error may be caused by the following. Remove the cause of the error and perform
calibration again. If the problem is not resolved, refer to "6-2 Concept of detection range"
(P. 8) to reduce the sensor' s detection range.
• The sensor detects an object such as a wheel stopper, or a pedestrian in the detection
area.
• The sensor is installed too low and detects the ground.
• The sensor pole is tilted and the sensor detects the ground.
• The sensor installation direction is not correct, and the sensor is detecting a close vehicle or
wall (fence).
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