Rosemount 2120 Vibrating Level Switch

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Description

The Rosemount 2120 Level Switch from HMA INSTRUMENTATION is designed based on the principle of a tuning fork. A piezo-electric crystal oscillates the forks at a natural frequency. Changes to this frequency are monitored continuously. 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 detected by the electronics and switches the output state. When the Rosemount 2120 Level Switch from HMA INSTRUMENTATION 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 are a functionality virtually unaffected by:

  • Flow
  • Bubbles
  • Turbulence
  • Foam
  • Vibration
  • Solids content
  • Coating products
  • Liquid properties
  • Product variations

The Rosemount 2120 Level Switch from HMA INSTRUMENTATION is designed for operation in process temperatures from –40°C to 150°C.