Emerson Rosemount 2120 Reference Manual page 21

Reference Manual
00809-0100-4030
Allow adequate space outside tank or pipe
Mount the level switch so that it is removable and allow easy access to the wiring terminals
when the top cover is removed. Ensure there is also enough room for fitting cable glands
and cables.
A clearance of 1.2 in. (30 mm) is required for the top cover to be removed.
Note
Versions of the level switch with a glass-filled-nylon housing can be rotated to assist with
the cabling.
Covers installation
Ensure the housing O-ring is sitting evenly and then tighten the electronics housing cover
to form a good seal. On metal housing versions, metal must contact metal to form a good
seal. Always use Emerson's O-rings.
Mounting orientation
Mount the Rosemount 2120 at any angle that allows the level of the process medium to
rise, fall, or flow through the fork gap.
Related information
Correct fork alignment
Hygienic installation
For hygienic applications, the level switch must be hygienically cleaned before installation
and handled in strict accordance with hygienic standards.
Refer to the Rosemount 2120
compliance requirements.
Rosemount 2120 Level Switch
Product Certifications document for hygienic approvals and
Mechanical installation
March 2022
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