Chapter 8 ___________________________________________________________________Repair
VAISALA______________________________________________________________________ 123
18. Switch on the power with all three switches. Wait until the Laser
on LED starts blinking at 2-second intervals. Ensure that all six
diagnostic LEDs are lit. Refer to Figure 26 on page 111.
19. Open the command line with the
open command. The password is
advanced.
20. Enter the
get params factory command and write down the
Target Outlaser value.
21. The new calibration value is calculated as follows:
NEW OUTLASER = (OLD OUTLASER x NEW CLM311 SENSITIVITY
VALUE) / (OLD CLM311 SENSITIVITY VALUE)
For example:
880 x 98 % / 102 % = 837 (rounded to the nearest integer value)
22. Give the following command:
SET FACTORY OUTLASER <value>
where <value> is the new, calculated target outlaser value.
23. Give the
status command and check from the status message that
the measured outlaser is close (±5 %) to the new outlaser value.
Also check that the system status is OK and there are no suspect
LRUs.
The ceilometer unit should now return to normal operation. Verify that
the unit is working properly and that there are no other failures with the
system. If other failures exist, separate troubleshooting may be necessary.
Replacing Modem Module DMX501 (Optional)
CAUTION
Servicing the equipment must only be performed by qualified
maintenance personnel.
Always replace the modem module indoors.
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