Rosemount 3152 - Process Flange Reassembly

Reference Manual
00809-0100-4835 Rev BD
July 2016
Rosemount 3150 Series
5-14
Electronics Housing Cover
Installation
1. Inspect the housing (5) and cover (1) threads to ensure they are
free of foreign material. If foreign material is present, remove it.
NOTE
Use of thread lubricant on the cover is recommended to reduce
galling between the cover and housing. Covers are shipped from the
factory pre-lubricated with the qualified dry lubricant. Normally, dry
lubricant should not need to be re-applied; however, thread lubricant
may be re-applied if desired. For reference, the transmitters were
qualified using Lubriplate #5555
®
(aluminum covers) and Electrofilm
Lubri-Bond A
TM
(stainless steel).
2. Carefully replace each cover, ensuring that each contains a cover
o-ring (2) (See Preliminary Section above). Caution should be
taken that electrical wires do not interfere with cover installation
so wire damage does not occur. Tighten cover until its surface
and the housing surface are fully engaged metal-to-metal (see
Figure 2-9 in Section 2: Installation).
NOTE
Once the cover is installed metal-to-metal, do not torque the cover
further.
Process Flange Reassembly
1. Replace the process c-rings (9) with new c-rings if the flange (10)
was removed. Carefully place one c-ring in each of the two weld
rings located on the isolating diaphragms of the sensor module
(8) as shown in Figure 5-11.
2. Carefully place the process flange on the sensor module. Take
care not to disturb the c-rings or damage the isolating
diaphragms.
Figure 5-11 – Process C-rings
Place process
c-rings into the
grooves of
metal welded
rings