Process Connections - Emerson Rosemount 2088 Reference Manual

Reference Manual
00809-0100-4108
A. Sensor module
B. Process connection
3.5

Process connections

3.5.1 Rosemount 2090P
Installing the Rosemount 2090P transmitter involves attaching a weld spud to the tapped
process vessel, attaching the transmitter to the weld spud, and making electrical
connections. If you intend to use an existing weld spud, proceed to the transmitter section
of this installation procedure.
Note
The Rosemount 2090P isolating diaphragm can be mounted flush with the inside diameter
of any vessel larger than three inches in diameter.
CAUTION
Installation of the weld spud should be performed by a skilled welder using a TIG welder.
Improper installation may result in weld spud distortion.
3.5.2 Weld spud
Procedure
1. Using the appropriate size hole saw, cut a hole in the process vessel to accept the
2. Bevel the edge of the vessel hole to accept filler material.
3. Remove the weld spud from the transmitter and remove the PTFE gasket from the
Reference Manual
weld spud. The diameter for a weld spud with heat isolator groove is 2.37-in. (60
mm); when compatible with 1-in. PMC
diameter is 1.32 in. (33,4 mm) and when compatible with G1 process connection,
the diameter is 2.00 inches (51 mm). The hole should produce a tight, uniform fit
when coupled with the weld spud.
weld spud.
Hardware Installation
®
process connection style spud, the
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