Instruction Manual
D200119X012
2100 and 2100E Liquid Level Switches
June 2017
4
Educational Services
For information on available courses for 2100 pneumatic and 2100E electric liquid level switches, as well as a variety of
other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: education@emerson.com
emerson.com/fishervalvetraining
Installation
WARNING
Always wear protective clothing, gloves, and eyewear when performing any installation operations to avoid personal
injury.
Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
Hazardous Area Approvals and Special Instructions for “Safe Use” and
Installations in Hazardous Locations
2100E Electrical Switch Component
Inspect the electrical switch component in your 2100E electric liquid level switch to determine the part number of the
switch component, if specified. Contact your Emerson sales office
or Local Business Partner if additional information is
needed.
CSA— Class I, Division 1, Groups A, B, C, and D; Class II, Division 1, Groups E, F, and G ; Dual Seal
FM— XP Class I, Division 1, Groups A, B, C, D T6; DIP Class II, Division 1, Groups E, F, G T6; IP66
Special Conditions of Use:
Model 057-0770 has temperature classification T5 for 11 Amp and T6 for 5 Amp
Ambient temperature: 11 A, Ta = 75_C ; 5 A, Ta = 70_C
Model 057-0771 has temperature classification T4 for 11 Amp and T6 for 5 Amp
Ambient temperature: 11 A, Ta = 65_C ; 5 A, Ta = 70_C
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