2100 and 2100E Liquid Level Switches
Instruction Manual
Form 5039
December 2005
3
No person may install, operate or maintain a Type
2100 pneumatic or a Type 2100E electric liquid level
switch without first
D
being fully trained and qualified
in valve, actuator and accessory installation,
operation and maintenance, and
D
carefully reading
and understanding the contents of this manual. If
you have any questions about these instructions,
contact your Emerson Process Management sales
office.
Description
The on-off Type 2100 pneumatic switch (figure 1)
and the Type 2100E electric switch (figure 2)
operate shutdown valves or alarm systems when
liquid in a vessel reaches a predetermined level. The
Type 2100 switch uses an externally mounted
displacer that operates a nozzle-flapper to vent the
supply pressure when the switch is activated. The
nozzle-flapper has a soft seat for tight shutoff when
the switch is in its normal position (flapper against
the nozzle). The Type 2100E switch uses the
displacer torque to activate and deactivate an
electric switch for positive on-off service. The
displacer on each type can withstand up to 1-1/2
times the maximum working pressure, allowing it to
remain in the cage during hydrostatic testing.
Unless otherwise noted, all NACE references are to
NACE MR0175
−
2002.
Specifications
Specifications for the Type 2100 and 2100E
switches are shown in table 1.
WARNING
This product is intended for a specific
current range, temperature range and
other application specifications.
Applying different current, temperature
and other service conditions could
result in malfunction of the product,
property damage or personal injury.
Educational Services
For information on available courses for Type 2100
pneumatic and Type 2100E electric liquid level
switches, as well as a variety of other products,
contact:
Emerson Process Management
Educational Services, Registration
P.O. Box 190; 301 S. 1st Ave.
Marshalltown, IA 50158
−
2823
Phone: 800
−
338
−
8158 or
Phone: 641
−
754
−
3771
FAX: 641
−
754
−
3431
e-mail: [email protected]
Note
Neither Emerson
R
, Emerson Process
Management, Fisher
R
, nor any of their
affiliated entities assumes
responsibility for the selection, use,
and maintenance of any product.
Responsibility for the selection, use,
and maintenance of any product
remains with the purchaser and
end-user.
Installation
Installation Procedures
The installation procedures include those common to
both the Type 2100 pneumatic and Type 2100E
electric liquid level switches and additional ones for
each switch.
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.
