E+H Liquipoint FTW33 Conductive Point Level Switch

The Liquipoint FTW33 is developed for the food industry and meets all international hygiene requirements. The device also fits perfectly for applications in all industries. For use in pasty and sticky media and media with heavy build-up.
– Oil and water based fluids and sticky media
– Real flush-mounted
– Active build-up compensation
– Function check with test magnet
– No calibration or adjustment required
– Plug & play without any specific tools
– IO-Link connectivity

  • Perfect fit to the hygienic industry thanks to flush-mounted design, which allows pigging of pipes
  • Safe and reliable measurement due to build-up compensation, ensuring reliable switching; IO-Link reduces costs and complexity due to easy configuration and flexible integration in all fieldbus systems
  • Individual adjustment to each medium not necessary
  • Easy installation thanks to compact design, even in tight conditions or where access is restricted
  • Broad range of process connections for installation in new and existing plants
  • CIP and SIP cleanability ensured – up to protection class IP 69
  • LED display for on-site function check

For use in pipes and in storage, mixing and process vessels with or without an agitator. For liquids with electrical conductivity >1 μS/cm or dielectric constant >2. Developed for the food industry. Detection of foam occurring within the food industry possible.

  • Process connections: Threads and hygiene connections
  • Sensor length: Flush-mounted
  • Temperature: -20 to +100°C (-4 to +212°F), CIP/SIP to 150°C (302°F) for 1 hour
  • Pressure: 0 to 25bar abs (0 to 362,5psi abs)
  • Hygienic certificates
  • Measuring principle


  • Characteristic / Application

    Compact point level switch for using in pipes and in storage, mixing and process vessels with or without an agitator, for water based or oil based media, with active build up compensation,flush mounting

  • Specialities

    CIP and SIP suitable

    Conductive foam is detectable or can be switched off

  • Supply / Communication

    10…30 V DC

  • Ambient temperature

    -40 … 70°C

    (-40 … 158°F)

  • Process temperature

    -20 … 100°C

    -20 … 150°C for 1h

    ( -4 … 302°F for 1h)

  • Process pressure absolute / max. overpressure limit

    Vacuum … 25 bar

    (Vacuum … 362,5 psi)

  • Main wetted parts

    Sensor: 316L

    Sensor isolation: PEEK

  • Process connection

    Thread G1, G1/2, G3/4, M24

  • Process connection hygienic

    Clamp ISO 2852 1 to 1 1/2″, 2″,
    DIN11851 Pipe union

  • Communication

    DC PNP

  • Certificates / Approvals

    CSA C/US

  • Design approvals

    EN 10204-3.1

  • Hygienic approvals

    3A, EHEDG

  • Options

    Weld-in adapter, 

    Process adapter for hygienic process connections

Datasheet: Liquipoint FTW33 Technical Information

Liquipoint FTW33 IO-Link Technical Information

Weld-in adapter, process adapter and flanges

Shopping Cart