Rosemount 2110 Specifications
Rosemount™ 2110 Level Switch
Vibrating Fork
Product Data Sheet
March 2018
00813-0100-4029, Rev FA
Virtually unaffected by turbulence, foam,
vibration, coating, or changing liquid properties
Built in diagnostics continuously monitors
instrument health and Heartbeat LED provides
visual indication
Magnetic test point makes testing of the
Rosemount 2110 and system easy
Minimal installation and maintenance, and no
calibration required, keeps costs down
DIBt / WHG overfill protection certification keeps
peace of mind
Compact size makes the Rosemount 2110
suitable for use in small vessels and tanks or for
in-pipe mounting
Hygienically certified to 3-A
complies with FDA and ASME-BPE
®
and EHEDG, and
Rosemount 2110 Level Switch
Compact and lightweight
Tri Clamp process
connection
Threaded process
connection
Overview of the Rosemount 2110 Level Switch
Measurement principle
The Rosemount 2110 is designed using the principle of a tuning fork.
A piezo-electric crystal oscillates the forks at their natural frequency.
Changes to this frequency are continuously monitored. The frequency
of the vibrating fork sensor changes depending on the medium in
which it is immersed. The denser the liquid, the lower the frequency.
When used as a low level alarm, the liquid in the tank or pipe drains
down past the fork, causing a change of natural frequency that is
detected by the electronics and switches the output state.
When the Rosemount 2110 is used as a high level alarm, the liquid
rises in the tank or pipe, making contact with the fork which then
causes the output state to switch.
Key features and benefits
Stainless steel housing and plug/socket connection for fast- fit,
high-volume users
March 2018
Contents
Compact and lightweight design for side or top mounting
The industry standard DIN 43650 plug/socket is used for a fast
connection. The polarity insensitivity and short circuit protection
make electrical hook-up safe and easy
The Rosemount 2110 is designed for operation in temperatures
from –40 to 302 °F (–40 to 150 °C)
Rapid wet-to-dry time for highly responsive switching
‘Fast Drip’ fork design gives quicker response time, especially with
viscous liquids
The ‘heartbeat’ LED gives an instant visual indication that the unit is
operational
Fork shape is optimized for polishing to meet hygienic
requirements. Mechanical-polishing and electro-polishing options
No moving parts or crevices for virtually no maintenance
Magnetic test point makes functional test easy
Overview of the Rosemount 2110 Level Switch . .page 2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . page 4 Product Certifications . . . . . . . . . . . . . . . . . . . . . page 8
Spare Parts and Accessories . . . . . . . . . . . . . . . . . . .page 5 Dimensional Drawings . . . . . . . . . . . . . . . . . . . . page 9
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Emerson.com/Rosemount
March 2018
Overfill protection
High and low level alarm
Leak detection
Pump protection
Fit and forget
Once installed, the Rosemount 2110 is ready to go.
It needs no calibration and requires minimum installation
Functional testing of the instrument and system is easy with a magnetic
test point
You can install, and forget it
Superior performance
Functionality is virtually unaffected by turbulence, foam, vibration, coating,
or liquid properties
The ‘Fast Drip’ design allows the liquid to be quickly drawn away from the
fork tip, making the Rosemount 2110 quicker and more responsive in high
density or viscous liquid applications
Applications
Overfill protection
Rosemount 2110 Level Switch
High and low level alarms
Leak detection
Run dry or pump protection
Pump control or limit detection
Hygienic applications
Emerson.com/Rosemount
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Rosemount 2110 Level Switch
March 2018
Ordering Information
Specification and selection of product materials, options, or components must be made by the purchaser of the equipment.
See page 6 for more information on Material Selection.
Table 1. Rosemount 2110 Ordering Information
The starred options (★) represent the most common options and should be selected for best delivery. Any non-starred offerings are
subject to additional delivery lead time.
Model Product description
2110 Compact Vibrating Fork Liquid Level Switch
Electronic type
0 Direct load switching with plug connection (2 wire) 21 to 264 Vac 50/60Hz, 21 to 264 Vdc
1 PNP/PLC low voltage switching with plug connection 18 to 60 Vdc
Process connection size / type
0A
1A 1-in. BSPT (R) thread
0D
2R 2-in. (51 mm) Tri Clamp
1B 1-in. BSPP (G) thread
1L 1-in. BSPP (G) semi-extended 4.6 in. (116 mm)
3
/4-in. BSPT (R) thread
3
/4-in. NPT thread
★
★
★
★
★
★
★
★
Surface finish Available Connections
1
2
3
4
7
8
NA No hazardous locations certifications (safe area use only)
Q4 Certificate of functional test
Q16 Surface finish certification
QA Certificate of compliance to 3-A
QE Certificate of compliance to EHEDG
Standard surface finish
(1)
Hand polished (Ra < 0.4 μm)
Ra < 0.76 μm, hygienically approved
Electro-polished to 0.76 μm, hygienically approved
Mechanically-polished to Ra < 0.1 μm, hygienically approved
Electro-polished to Ra < 0.38 μm, hygienically approved
Product certificates
Typical Model Number: 2110 0 2R 1 NA
Options (include with the selected model number)
Calibration data certificate
Wetted surface finish certification
3-A certification
EHEDG certification
(2)
(3)
(3)
(3)
All ★
Tri Clamp only
Tri Clamp only
Tri Clamp only
Tri Clamp only
Tri Clamp only
★
★
★
★
★
4
Emerson.com/Rosemount
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