
Reference Manual
00809-0100-4716, Rev JA
May 2008
Rosemount 3095 MultiVariable
2-8
Housing Rotation
The electronics housing may be rotated to improve field access to the two
compartments. To rotate the housing less than 90 degrees, release the
housing rotation set screw and turn the housing not more than 90 degrees
from the orientation shown in Figure 2-3 on page 2-6. To rotate the
housing greater than 180 degrees, follow the disassembly procedure on
page 6-8.
Terminal Side of Electronics Housing
•
Wiring connections are made through the conduit openings on the top
side of the housing.
•
The field terminal side is marked on the electronics housing.
•
Mount the transmitter so that the terminal side is accessible. A
0.75-inch (19-mm) clearance is required for cover removal.
•
Install a conduit plug in the unused conduit opening.
Circuit Side of Electronics Housing
The circuit compartment should not routinely need to be opened when the
unit is in service; however, provide 0.75 inches (19 mm) clearance if
possible to allow access.
Process
The 3095 process connections on the transmitter flange are
1
/
4
–18 NPT.
Flange adapter unions with
1
/
2
–14 NPT connections are available as options.
These are Class 2 threads; use your plant-approved lubricant or sealant when
making the process connections. The process connections on the transmitter
flange are on 2
1
/
8
-inch (54-mm) centers to allow direct mounting to a three- or
five-valve manifold. By rotating one or both of the flange adapters, connection
centers of 2, 2
1
/
8
, or 2
1
/
4
inches (51, 54, or 57 mm) may be obtained.
When compressed, Teflon
®
O-rings tend to cold flow, which aids in their
sealing capabilities. Whenever flanges or adapters are removed, visually
inspect the Teflon O-rings. Replace them if there are any signs of damage,
such as nicks or cuts. If they are undamaged, they can be reused. If the
O-rings are replaced, the flange bolts may need to be retorqued after
installation to compensate for cold flow.
Rotating the housing greater than 180 degrees without performing the disassembly
procedure may damage the 3095 sensor module.
Summary of Contents for Rosemount 3095
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