Emerson ROSEMOUNT OCX 8800 - Manual (Page 79)

Instruction Manual
IM-106-880, Rev 1.0
January 2007
6-17
OCX 8800
Disassemble COe Sensor Assembly
1. Carefully remove screws (1, Figure 6-13), lockwashers (2), and COe
sensor (3) from sensor holder (4). Remove and discard gasket (5).
2. If damaged, use the following procedure to remove thermocouple
adaptor (6) from sensor holder (4):
a. Use a propane torch to heat the thermocouple adaptor to 450°F
(232°C), minimum.
b. While heating, use a flat-head screwdriver to apply removal torque.
Apply torque until the pipe thread sealant softens. Remove and
discard the thermocouple adaptor.
c. Use MEK or methylene chloride solvent to clean thread sealant
residue from the internal pipe threads in the sensor holder. Refer to
applicable MSDS sheet for solvent handling precautions.
Figure 6-13. COe Sensor,
Exploded View
37390030
8
9
4
5
6
1
2
3
7
1. Screw
2. Lockwasher
3. COe Sensor
4. Sensor Holder
5. Gasket
6. Thermocouple Adapter
7. Pre-Heater
8. Plug
9. Stainless Steel Balls