User's Guide ______________________________________________________________________
114 _________________________________________________________________ M210482EN-B
2.
Disconnect the CLT311 cable from the CLE311. Detach the
transmitter from the optics unit using the 2.5 mm Allen key as a
lever.
3.
Detach the CLM311 twisted pair cable from the CLE311 board.
4.
Detach the Laser Monitor Board CLM311 by loosening the two
Allen screws. You can access the screws best through a hole in
the transmitter ring (see number 5 in Figure 18 on page 98).
5.
Write down the sensitivity value of the old, defective board, for
example, 102 % . If no value is written on the CLM311, use the
standard value 100 %.
6.
Write down the sensitivity value of the new CLM311 board, for
example, 98 %. If there is no value on the CLM311, use the
standard value 100 %.
7.
Replace the new board and tighten the Allen screws.
8.
Attach the twisted pair cable to the CLE311 board at the
CLM311 connector.
9.
Tighten the transmitter CLT311 back to its place and reconnect
the cable to CLE311.
10.
Connect the CT3839 power cable and the maintenance terminal
to CL31.
11.
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.
12.
Open the command line with the
open
command. The password
is
advanced
.
13.
Enter the
get params factory
command and write down the
Target Outlaser
value.
14.
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)
15.
Then give the following command:
SET FACTORY OUTLASER <value>
where
<value>
is the new, calculated target outlaser value.
