Emerson Rosemount CT5400, Installation, Operation And Maintenance Manual

Page: 142 / 176

2. Remove the analyzer from the rack and place it on a stable workbench. This step
requires two people to properly lift and transport it to the workbench.
3. Remove and retain the four screws attaching the top cover to the chassis.
4. Remove the gas input and output lines as described in Section 7.21 and Section 7.22 .
5. Remove the pressure sensor as described in Section 7.19 , steps 4 through 9.
6. As shown in Figure 7-36 , use your fingers to push inwards the analysis cell insulation
(B) until the tube fitting (A) is exposed.
Pressure sensor pipe Figure 7-36:
A. Stainless steel 316 male connector, Let-Lok tube fitting 6 mm x male ISO tapered thread 1/4 in.
(pressure connector)
B. Analysis cell insulation
C. Pipe
7. Release the tube fitting (A) and slide it up the pipe (C). Remove and retain the pipe,
complete with tube fitting.
8. Remove the gas temperature sensor as described in Section 7.18 .
9. Remove the thermal cut-out as described in Section 7.20 .
10. Refer to Figure 7-37 . Remove and retain the four M6 x 20 mm socket head cap
screws (D) and associated M6 spring washers (B) and M6 flat washers (C). Lift the
analysis cell (A) off the optical baseplate.
Troubleshooting and diagnostics
122 Rosemount CT5400