Instruction Manual
D200119X012
2100 and 2100E Liquid Level Switches
June 2017
14
11. With a tool inserted through the bottom process connection of the cage and displacer assembly (key 1), move the
displacer to its upward travel limit and then tighten the locknut on the displacer rod end to between 20 and 27 NSm
(15 and 20 lbfSft).
12. Install the pipe plug (key 2), or the bushing and sight window assembly (keys 4 and 5), into the body block (key 3).
Torque the pipe plug, or bushing and sight window, to between 68 and 136 NSm (50 and 100 lbfSft).
13. Select a switch mounting port that will provide the desired switching action. Screw the electric switch assembly
into the selected port until the switch assembly groove aligns with the threaded hole for the set screw (key 56).
Position the electric switch contact directly below the machine screw (key 31). Install and tighten the set screw
(key 56) to anchor the electric switch assembly.
14. Insert the cap plug (key 54) in the unused switch mounting port. Install the set screw (key 56) in the mounting port
of the switch housing (key 55).
15. Install the switch arm (key 40) on the shaft of the torque tube assembly (key 7) with the head of the shaft clamp
screw (key 41) pointing toward the top process connection and the switch arm parallel to the top of the electric
switch assembly (key 49). Tighten the locknut (key 33) on the shaft clamp screw to secure the switch arm.
16. Thread the machine screw (key 31) in or out of the switch arm (key 40) until it touches the contact of the electric
switch assembly (key 49), then tighten the locknut (key 33).
17. Secure the cover (key 60) to the switch housing (key 55) with the cover screw (key 61).
Parts Ordering
When corresponding with your Emerson sales office or Local Business Partner about this equipment, always mention
the unit's serial number.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions should
not, under any circumstances be used in any Fisher instrument. The use of components not manufactured by Emerson
Automation Solutions may void your warranty, might adversely affect the performance of the instrument, and could result
in personal injury and property damage.
Parts Kits
Key Description Part Number
2100 Repair Kit (included are keys
7, 11, 12, 14, 16, 18, 19, 20, 24, 25,
26, and 32) R2100X00012
Key Description Part Number
2100E Retrofit Kit (included are the
switch arm assy and keys 21, 28, 30, 38,
39, 42, 44, 45, 46, 49, 50, and 51)
SPDT Switch R2100EX0SP2
DPDT Switch R2100EX0DP2
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