User's Guide ______________________________________________________________________
94 __________________________________________________________________ M210482EN-B
4.
To detach the transmitter, loosen the transmitter ring by turning
it to the right. If necessary, you can use a 2.5-mm Allen key as a
lever. Remove the transmitter from the unit. Refer to numbers 5
and 6 in Figure 18 on page 98.
5.
Place the new transmitter to its place and tighten the transmitter
ring in such a way that the labels of the transmitter face the
measurement unit door.
6.
Connect the transmitter ribbon cable to the CLE311 board.
7.
Connect the CT3839 power cable.
8.
Switch the power on 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 19 on page 99.
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 Ceilometer Receiver CLR311
CAUTION
Servicing the equipment must only be performed by qualified
maintenance personnel.
The receiver should be replaced if the ceilometer unit has been
generating warnings and alarms, and a malfunction with the operation
of the receiver has been detected.
To replace Ceilometer Receiver CLR311, you will need a 2.5 mm
Allen-key.
Then proceed as follows:
1.
Open the measurement unit door and confirm that there is an
active receiver failure. In case of a receiver failure, the
CLR ok
LED will be turned off. Refer to Figure 19 on page 99.
2.
Switch the power off with all three switches (F1, F2, and
Battery). For the location of the switches, refer to Figure 18 on
page 98 and Figure 19 on page 99.
WARNING
Disconnect the CT3839 power cable before continuing!
