Emerson Rosemount OCX 8800 Reference Manual page 244

Maintenance and service
Procedure
1.
2.
3.
4.
5.
234
If the pre-heater (B, Figure
#567) to the external pipe threads of the pre-heater (B) and plug (D).
Do not apply sealant to the first turn of the pipe threads.
Clamp flats of sensor holder (E) in vise jaws with the pre-heater port pointing up.
Install and tighten the pre-heater (B). Align the pre-heater to the flat of the sensor
holder (E) as shown in Figure
Figure 9-14: COe sensor and pre-heater alignment
A. Sensor holder flat
B. Sensor holder
C. COe sensor flat
D. Pre-heater flat
E. Sensor holder flat
Invert the sensor holder (E,
plug port. Press down on stainless steel balls and tap sensor holder with plastic
hammer to compact balls in pre-heater chamber.
Install and tighten the plug.
CAUTION!
EQUIPMENT DAMAGE
Use care when installing the combustibles (COe) sensor. The RTD elements are fragile
and correct alignment in sensor holder is required for proper OCX operation.
9-13) was removed, apply pipe thread sealant (Loctite
9-14.
Figure 9-13) in a vise and pour stainless steel balls (C) into
OCX 8800