Emerson Rosemount 3051 Reference Manual page 25

Reference Manual
00809-0100-4797, Rev DA
Note
Over rotating can damage the transmitter.
3. Re-tighten the housing rotation set screw to no more than 7 in-lbs when desired location
is reached.
Figure 3-1. Housing Rotation
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 3051 may be panel-mounted or pipe-mounted through an optional mounting
bracket. Refer to
on pages
Hardware Installation
A
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
16 and 18 for dimensions and mounting configurations.
Hardware Installation
August 2016
Figure 3-2 through Figure 3-6
15