2. Remove the field terminals cover.
In an explosion-proof/flameproof installation, do not remove the level switch cover
when power is applied to the unit. The cover must also not to be removed in
extreme environmental conditions.
•
Versions of the Rosemount 2120 with a metal housing are explosion-proof/
flameproof. They have a cover-lock to be undone first.
•
Versions of the Rosemount 2120 with a glass-filled-nylon housing are not
explosion-proof/flameproof. They do not have a cover-lock.
3. Remove the plastic plugs.
Versions of the Rosemount 2120 with a glass-filled-nylon housing do not have
plastic plugs fitted.
4. Pull cables through the cable gland/conduits.
•
Cassettes with a single terminal only require one cable.
Identification of thread size and type:
¾-in. ANPT
M20 x 1.5
M20
¾-in. ANPT
M20 x 1.5
M20
•
Cassettes with two or more terminals may require more than one cable.
Reference Manual
Electrical installation
00809-0100-4030
March 2022
Rosemount 2120 Level Switch
49
Summary of Contents for Rosemount 2120
Page 1: ...Reference Manual 00809 0100 4030 Rev GA March 2022 Rosemount 2120 Level Switch Vibrating Fork ...
Page 4: ...4 ...
Page 8: ...Introduction Reference Manual March 2022 00809 0100 4030 8 Reference Manual ...
Page 14: ...Level switch overview Reference Manual March 2022 00809 0100 4030 14 Reference Manual ...
Page 32: ...Mechanical installation Reference Manual March 2022 00809 0100 4030 32 Reference Manual ...
Page 81: ...Reference Manual 00809 0100 4030 March 2022 Rosemount 2120 Level Switch 81 ...