Emerson Rosemount 2051 Reference Manual page 29

Reference Manual
00809-0300-4101, Rev BB
Figure 3-1. Housing Rotation
A
A. Housing rotation set screw (
Terminal side of electronics housing
Mount the transmitter so the terminal side is accessible. Clearance of 0.75-in. (19 mm) is
required for cover removal. Use a conduit plug in the unused conduit opening.
Circuit side of electronics housing
Provide 0.75-in. (19 mm) of clearance for units with out an LCD display. If LCD display is
installed, mount for clear visibility. Three inches of clearance is required for LCD display
cover removal.
Conduit entry threads
For NEMA
threads to provide a watertight seal.
Environmental seal for housing
Thread sealing (PTFE) tape or paste on male threads of conduit is required to provide a
water/dust tight conduit seal and meets requirements of NEMA Type 4X, IP66, and IP68.
Consult factory if other ingress protection ratings are required.
For M20 threads, install conduit plugs to full thread engagement or until mechanical
resistance is met.
Always ensure a proper seal by installing electronics housing cover(s) so that metal contacts
metal. Use Rosemount O-rings.
Mounting brackets
Rosemount 2051 may be panel-mounted or pipe-mounted through an optional mounting
bracket. Refer to
on pages
Table 3-1. Mounting Brackets
Option
code
B4
B1
B2
Hardware Installation
5
/ -in.)
64
®
4X, IP66, and IP68 requirements, use thread seal (PTFE) tape or paste on male
Table 3-1 for the complete offering and see
20 and 22 for dimensions and mounting configurations.
Rosemount 2051 Brackets
Process connections
Coplanar In-line Traditional Pipe Panel
X X N/A
N/A N/A X
N/A N/A X
Hardware Installation
Figure 3-2
Mounting
Flat CS
panel bracket
X X X N/A
X N/A N/A X
N/A X N/A X
November 2016
through Figure 3-6
Materials
SST CS SST
bracket bolts bolts
X N/A X
N/A X N/A
N/A X N/A
19