E+H Liquiphant FTL51H Vibronic Point Level Switch

Liquiphant FTL51H is a point level switch with extension tube for use in hazardous areas with all international certificates. Especially useable in the food and life sciences industry with hygienic certificates (3-A, EHEDG, ASME BPE). FTL51H offers functional safety SIL2/SIL3. Reliable measurement values, not affected by: changing media properties, flow, turbulences, gas bubbles, foam, vibrations or build-up.

  • International hygienic certificates (3-A, EHEDG, ASME BPE). FDA-conformed material
  • Electro-polished and passivated surface finishing
  • International explosion protection certificates and overfill prevention certificate (WHG)
  • No mechanically moving parts: no maintenance, no wear, long operating life.Monitoring of fork for damage: guaranteed function
  • Use in safety systems requiring functional safety to SIL2/SIL3 in accordance with IEC 61508/IEC 61511-1
  • No calibration required, easy to start up
  • Variety of standardized hygienic process connections for hygiene sensitive applications

Point level switch for all liquids with electro-polished surface finishing.

  • Process connections: Threads, flanges and hygienic process connection (Tri-Clamp, dairy coupling, aseptic, DRD, SMS, Varivent)
  • Temperature: -50 to +150°C (-58 to +302°F)
  • Pressure: -1 to +64bar (-14.5 to +928psi)
  • Sensor material: 316L
  • International explosion protection certificates, overfill prevention WHG, SIL, hygienic certificates, marine approvals
  • Measuring principle

    Vibration Liquids

  • Characteristic / Application

    Liquiphant M Density
    with Density Computer FML621
    Temperature and pressure measurement

    Modular & completely welded housing concept

    Focus Food & Pharma

    Surface up to 0.3 µ

    Variable sensor length up to 3 m (6 m option)

  • Supply / Communication

    Transmitter power supply (MUS)

  • Ambient temperature


    -50…60°C for hazardous applications

  • Process temperature

    0…80°C (validity of accuracy data)

    -50…0°C / 80…150°C (with reduced technical data)

  • Process pressure absolute

    0…25 bar

    >25…64 bar (with reduced technical data)

  • Wetted parts


  • Hygienic


  • Sensor length

    115…3000 mm

    >3000…6000 mm (Option)

  • Output


  • Certificates / Approvals


  • Specialities

    Commissioning with ReadWin2000

  • Components

    Density Computer FML621

  • Other approvals and certificates

    SIL2/ SIL3

Datasheet: Liquiphant M FTL50, FTL51, FTL50H, FTL51H Technical Information

Liquiphant M FTL51C Technical Information

Weld-in adapter, process adapter and flanges

Technical Information Liquiphant M Density and Density Computer FML621

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