Emerson Rosemount CT5400, Installation, Operation And Maintenance Manual

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Removing the thermal cut-out Figure 7-32:
A. Thermal cut-out
B. Analysis cell
C. M3 flat washer
D. M3 x 8 mm socket head cap screw
E. Insulation
F. Wiring harness
7. Remove and retain the two screws (D) and associated washers (C).
8. Remove the thermal cut-out (A).
9. Disconnect the wiring harness (F) from the thermal cut-out by cutting the wiring
harness close to the thermal cut-out. Discard the unserviceable thermal cut-out.
10. Inspect the replacement thermal cut-out for damage. If damage has occurred,
contact your local Emerson Customer Care representative.
11. Route the wiring harness (F) through the hole in the side of the insulation (E). Using
a soldering iron with a rating of 35 Watts or less, solder the wiring harness to the
terminals of the thermal cut-out (A). Use high temperature solder and place a heat-
shrink sleeve over each soldered terminal.
12. Fit the thermal cut-out to the analysis cell (B) and secure by fitting the screws (D)
and washers (C) that were retained in step 6.
13. Return the insulation to its correct position against the side of the analysis cell.
14. Refer to Figure 7-31 . Fold the top insulation (A) back into position on top of the
analysis cell. Secure the top insulation by folding in the two side flaps (B and D) and
the two end flaps (C). Make sure that the Velcro strips on the inside of the side flaps
and end flaps mates with the Velcro strips on the exterior of the top insulation.
Figure 7-33 shows the insulation correctly fitted.
Troubleshooting and diagnostics
116 Rosemount CT5400