All Weather Inc 8339, User Manual, Page: 46 / 69

Model 8339 Ceilometer User’s Manual
40
8. REMOVAL AND REPLACEMENT
8.1 REMOVING MODULES
IMPORTANT
Observe ESD grounding procedures when handling modules.
Do not change modules during weather events; never allow precipitation to enter the
interior of the Ceilometer.
Whenever a module is being changed, the prime power should be shut off remotely. The
only time the remote power switch should be on with the Ceilometer door open is when
checking system operation during troubleshooting.
How to Open the Ceilometer
To gain access to the modules, open the Ceilometer door using a screwdriver to release the two
latches.