Instruction Manual
748441-D
April 2002
Rosemount Analytical Inc. A Division of Emerson Process Management
Maintenance and Service 5-23
Model CAT100
l.
Removal of the Sensor
Oxygen Measurement without Infrared
Channel:
1. Remove the analyzer from the enclo-
sure (see Section 5-2a, page 5-3)
2. Remove the analyzer cover (see Sec-
tion 5-4b, page 5-16)
3. Disconnect all electrical connections
between the PCBs OXS and BKS,
connectors X5, X6, and X7 (refer to
Section 5-5a, page 5-29).
4. Remove all gas lines from the sen-
sors.
5. Unscrew both allen screws shown in
Figure 5-15, page 5-23.
6. Remove the support bracket from the
top of the analyzer.
7. Disconnect the connector P2 from the
OXS PCB (see Figure 5-16, page 5-
24).
8. Cut and remove the tie wrap as
shown in Figure 5-17, page 5-24.
9. Unscrew both fastening screws for
the fitting (see Figure 5-17, page 5-
24).
10. Remove the fitting including the sen-
sor as shown in Figure 5-17, page 5-
24.
Figure 5-15. Oxygen Sensor without Infrared Channel
Front Panel
Allen screw
Allen screw
Gas connections
