Liquiphant M

Liquiphant M

Point level switch for all liquids.

Suitable for use in hazardous areas, food and pharmaceuticals.


  • Use in safety system requiring functional safety to SIL2/SIL3 in accordance with IEC 61508/IEC 61511-1
  • Large number of process connections to choose from: universal usage 
  • Wide variety of electronics, e.g. NAMUR, relay, thyristor, PFM signal output: the right connection for every process control system
  • PROFIBUS PA protocol: for commissioning and maintenance 
  • No calibration: quick, low-cost start-up 
  • No mechanically moving parts: no maintenance, no wear, long operating life 
  • Monitoring of fork for damage: guaranteed function 
  • FDA approved materials (PFA Edlon)

Field of application

The Liquiphant M is a point level switch for use in all liquids.

  • for process temperatures of -50 °C to 150 °C
  • for pressures up to 100 bar
  • for viscosity up to 10000 mm2/s
  • for densities 0.5 g/cm3 or 0.7 g/cm3 other settings available on request
  • foam detection on request

The function is not affected by flow, turbulence, bubbles, foam, vibration, bulk solids content or build-up. The Liquiphant is thus the ideal substitute for float switches.

FTL51H: With polished tuning fork and easy-to-clean process connections and housings for food and pharmaceutical applications.

High corrosion-resistant AlloyC4 (2.4610) is available for the fork and process connections for applications in very aggressive liquids. EEx ia, EEx de and EEx d protection enable it to be used in hazardous areas.

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