E+H Liquiphant FTL33 Vibronic Point Level Switch

Liquiphant FTL33 is a point level switch for liquids. The FTL33 is especially designed for food & beverage applications where hygienic requirements are requested. The Liquiphant is used for overfill prevention or pump dry-run protection. The IO-Link capability allows easy parameter setting.
– Smallest vibronic sensor in the market
– Continuous self-monitoring
– Reliable switching independent of media properties
– No calibration
– Plug & play
-IO-Link connectivity

  • Designed for hygienic applications especially in the food industry – hygienic process connections and approvals available. IO-Link reduces costs and complexity due to easy configuration of the devices via engineering tools
  • CIP and SIP cleanability ensured – up to protection class IP69k
  • Designed according to highest requirements to quality and environmental sustainability, the self-monitoring Liquiphant offers safe switching also in case of power supply loss
  • Independent of changing media properties an accurate switching point is offered
  • A real plug & play sensor is offered without any need for adjustment even with changing media. Measurement is unaffected by conductivity, build-up, turbulence, flows or air bubbles
  • No calibration is required, no specific know-how or tools (e.g. software) necessary
  • Robust design made of stainless steel (316L) assures highest durability – no mechanically moved parts, free of maintenance

Point level switch in compact hygienic design with stainless steel housing for the food industry.

  • Process connections: Threads, hygienic process connections, M24 process adapter
  • Temperature: -40 to +150°C (-40 to +302°F)
  • Pressure: -1 to +40bar (-14.5 to +580psi)
  • Surface roughness: 0.76µm or 1.5µm
  • Overfill prevention and leakage detection WHG, hygienic certificates, final inspection report
  • Measuring principle

    Vibration Liquids

  • Characteristic / Application

    Point level switch for liquids 
    in the food sector

  • Supply / Communication

    20 … 253V AC/DC, 2-wire 
    10 … 30V DC-PNP, 3-wire

  • Ambient temperature

    40 °C … 70 °C
    (-40 °F … 158 °F)

  • Process temperature

    -40 °C … 150 °C
    (-40 °F … 302 °F)

  • Process pressure absolute / max. overpressure limit

    Vacuum … 40 bar
    (Vacuum … 580 psi)

  • Min. density of medium

    (>0,5g/cm³ optional)

  • Main wetted parts


  • Process connection


    G1/2, G3/4, G1, MNPT1/2, MNPT3/4, MNPT1, R1/2, R3/4, R1

  • Process connection hygienic

    Flush mount by use of weld in adapter

  • Communication


  • Certificates / Approvals


  • Safety approvals

    Overfill prevention WHG


  • Design approvals

    EN 10204-3.1

  • Hygienic approvals

    3A, EHEDG

  • Options

    Switching delay

    Cleaned from oil+grease,

    Surface finish measurement

Datasheet: Liquiphant FTL33 IO- Link Technical Information

Liquiphant FTL33 Technical Information

Weld-in adapter, process adapter and flanges

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