Emerson Rosemount CT5400, Installation, Operation And Maintenance Manual

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4. Refer to Figure 7-30 . Carefully cut the two cable ties that secure the insulation (A) in
position. Remove and retain the insulation.
Pressure sensor Figure 7-30:
A. Insulation
B. M3 x 6 mm countersunk socket head screw
C. Wiring harness
D. Wiring harness (to peripheral PCA)
E. 2-way mini-fit electrical connector
F. Retaining plate
G. Pressure sensor
H. 6 mm pipe to 1/8 BSPP adapter 766LGSSMMX1/8
I. Pressure sensor pipe
5. Disconnect power to the analyzer.
6. Allow the analyzer to cool for at least two hours.
7. Remove the twenty M16 bolts from the housing and carefully lower the front
housing to the fully open position.
8. Carefully cut and remove any cable ties that secure the gas sensor wiring harness.
9. Disconnect the gas sensor wiring harness from connector block on the DIN rail.
10. Use a spanner on the sensor's 6
¼
mm hex fitting and remove the sensor from the
baseplate.
11. Discard the faulty sensor and Dowty washer.
12. Inspect the replacement sensor and washer for damage. If, damaged, contact you
local Customer care Representative.
13. Insert the replacement Dowty washer on the base of the temperature sensor and
insert into the baseplate.
Troubleshooting and diagnostics
Installation, Operations, and Maintenance Manual 113