USER'S GUIDE____________________________________________________________________
92 __________________________________________________________________ M210482EN-D
Cleaning
Data messages include a warning that informs when the window is
contaminated. After the system has detected contamination on the
window, it will start the blower, which is designed to remove light
contaminants and dry off rain drops. If the blower cannot remove the
contamination, CL31 will issue a
Window Contaminated warning
indicating that the window must be manually cleaned.
To clean the window, proceed as follows:
1. Flush the window with clean water to remove coarse grains.
Remember to keep the enclosure door closed. Do not use pressure
cleaners.
2. Clean the window with a soft, lint-free cloth moistened with a mild
detergent. Be careful not to scratch the window surface.
While cleaning the window, you can also check the operation of the
window blower. Unless it is already running, the blower should start
when you block the laser beam with the cleaning cloth for approximately
5 seconds or more. This verifies that the blower is functional. If there are
no low clouds, precipitation, or fog present, the blower should stop after
the window is cleaned. In case of malfunction, the window blower has to
be replaced.
Window Contamination Measurement Calibration
After 5 years of operation, calibrate the window contamination
measurement.
In addition, if the CL31 system starts issuing
Window Contamination
warnings frequently without a real reason, this may indicate that the
window is worn out or the window contamination measurement has
drifted. In that case, the window contamination measurement can be
calibrated to ensure proper functioning.
To calibrate, do the following:
1. Check the sky condition. In case of fog, smoke, precipitation or
otherwise unclear sky, use the termination hood (CLTERMHOOD)
in calibration.
2. Make sure that the window is cleaned.
3. Open the command line and enter the Advanced level by giving the
advanced command.
4. Give the
set factory win_clean command.
The calibration is carried out automatically.
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