EARL Level Switches Type 89

EARL Level Switch Type 89


The level switch type 89 is used to control liquid levels regardless of difficult operating conditions. The unit is designed for constant and long-term maintenance-free operation. According to customer specification and conditions, many variants in material, process connection and function are available.


A float or spring sustained displacer with guiding rod and permanent magnet operates a protective gas switch situated outside the medium area.


  • Reliable unit suitable for contaminated liquids
  • Wear and tear resistant construction with only one moving part
  • Model available for liquids with temperatures up to 350 °C
  • Several explosionproof models available
  • Models available for use in maritime and humid tropical climates
  • Long-term continuity of spares availability or complete units

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