SLM: Vibrating Fork Level Sensor

Item Code: SLM

Vibrating Fork Level Limit Switch for free flowing Solids, Granules and Powders
  • Application Temperature Range : up to 250° C
  • Calibration Free, Independent of Materials Di-electric Properties
  • No moving parts longer running life
  • Certifications: Flame Proof Housing IIA & IIB

Principle
A specially shaped tuning fork is kept vibrating using piezo-electric elements. The oscillation of the fork damps when in contact with the material. The loss of oscillation amplitude is detected and used for switching a relay. The output contacts of the relay are in turn used for annunciation or control.

Highlights
  • Independent of material’s electrical properties
  • High temperature durability (up to 200°C)
  • Suitable for detection of underwater chips
  • Configured for high and low level fail-safe detection.
Benefits
  • Insensitive to mechanical vibrations and material build-up
  • No moving parts, maintenance-free
  • Variation of electrical characteristics of the service material such as conductivity and dielectric constant do not affect its operation.
  • Non-stick PTFE/Halar coatings are also available for special applications.
Applications
  • Pulverized Coal
  • Cement
  • Powders, sand and sugar
  • Material Handling
  • Granular material