Replace Tube Fittings - Emerson Rosemount OCX8800A Manual

Manual
00809-0500-4880
2. Loosen screw and slide locking clip fully into gap between cover and ribs.
3. Retighten screw.
10.5

Replace tube fittings

The transmitter housings have special tube fittings that, if clogged or damaged,
must be replaced with the same type of fitting. The special tube fittings have
alpha or numeric codes etched on the fitting. Unetched tube fittings are standard
¼-in., stainless steel fittings.
E type fitting
The E type fitting is an eductor air drive fitting for the Rosemount OCX8800
general purpose sensor housing. It is a ⅛-in. tube fitting with a built-in 0.011-in.
restrictor orifice. It seats in a threaded base port inside the housing.
R type fitting
The R type fitting is a reference air line fitting for the general purpose and
hazardous area transmitter housings. This is a ¼-in. tube fitting with a built-in
0.007-in. restrictor orifice.
10.5.1 Remove tube fittings
The Rosemount OCX8800 construction includes pipe thread sealant to seal fittings
in all ports that pass through to an outer wall of the instrument housing base. Use
the following instructions to loosen and remove tube fittings that are secured
with pipe thread sealant.
WARNING
Burns
The pipe threads are bonded with a pipe thread sealant. The thread sealant
softens at 450 °F (232 °C). The heated parts can cause severe burns.
Use heat resistant gloves when removing a damaged tube fitting.
Rosemount OCX8800A
c) Align locking clip (B) with gap between cover ribs.
Maintenance and service
December 2022
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