Emerson Rosemount 2160 Quick Start Manual page 3

June 2016
1.0 Rosemount 2160 Overview
The Rosemount 2160 Wireless Vibrating Fork Level Switch ("level switch") uses
vibrating short fork technology, and is suitable for virtually all liquid applications.
The level switch is designed to use the principle of a tuning fork. A piezo-electric
crystal oscillates the forks at their natural frequency (~1400 Hz). 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 to a dry condition. When the level switch 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 to a wet condition.
The switch output state, along with other parameters, are regularly transmitted
over a secure wireless connection to a Smart Wireless Gateway ("gateway").
Figure 1. Rosemount 2160 Features
A
A. Aluminum housing
B. Antenna
C. Optional LCD display
D. Thermal tube (2160***E only)
E. Threaded, flanged, or
hygienic connections
B
C
D
E
F, G, and H
F. 'Fast drip' fork design
G. Short fork length or extensions
up to 118 in. (3 m)
H. Wetted materials in 316/316L SST, or
Alloy C (UNS N10002) and Alloy C-276
(UNS N10276)
Quick Start Guide
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