Vaisala CL31 - Replacing Window Blower CLB311

Chapter 8 ___________________________________________________________________Repair
VAISALA______________________________________________________________________ 117
Replacing No-break Battery 4592 on page 113.
20. Connect the power cable to connector J2.
21. 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 light up after the self-test. Refer to Figure 26 on
page 111.
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 Window Blower CLB311
Refer to number 14 in Figure 22 on page 104.
CAUTION
Servicing the equipment must only be performed by qualified
maintenance personnel.
The window blower should be replaced if the ceilometer unit has been
generating warnings and alarms, and a malfunction with the operation of
the blower has been detected.
To replace Ceilometer Window Blower CLB311, you will need
a 5 mm Allen-key.
Then proceed as follows:
1. Open the measurement unit door and confirm that there is an active
window blower failure. In case of a window blower failure, the
CLB ok LED will be off. Refer to Figure 26 on page 111.
2. Switch off the power with all three switches (F1, F2, and Battery).
For the location of the switches, see Figure 15 on page 40 and
Figure 16 on page 41.
WARNING
Disconnect the power cable from connector J2 before continuing.