Last Updates: 16/08/2020

E&H Liquicap FTI51 Capacitance Point level detection

Part Number: FTI51 Category:
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  • Liquicap FTI51 is a rod probe for point level detection of liquids that are highly viscous and tend to form build-up. Also used for detection of interface and foam of conductive liquids. Due to its active build-up compensation FTI51 offers maximum reliability and is suited for a wide range of applications thanks to international certificates. The parts in contact with the process are made of corrosion-resistant and FDA-listed materials – this guarantees a high safety standard.

    • Cost savings thanks to easy and fast commissioning as calibration takes place at the press of a button
    • Reliable and safe measurement due to active build-up compensation
    • Reliable and universal application thanks to wide range of certificates and approvals
    • Short reaction time
    • Material in contact with the process made of corrosion-resistant and FDA-listed materials
    • Two-stage overvoltage protection
    • No need for recalibration after replacing electronics

    For liquids that tend to form build-up. Interface detection of different liquids. Two-point control (pump control) with just one process connection. Foam detection of conductive liquids.

    • Process connections: Flanges, threads, special hygienic process connections
    • Temperature: -80 to +200°C (-112 to +392°F)
    • Pressure: Vacuum to +100bar (vacuum to +1,450psi)
    • Sensor length: 6m (20ft)
    • International explosion protection certificates, overfill prevention WHG, SIL, hygienic certificates, marine approval
    • Measuring principle

      Capacitive Liquid

    • Characteristic / Application

      Capacitive rod probe

    • Specialities

      Interface detection
      Foam detection

    • Ambient temperature

      -50 °C … +70 °C

      (-58 °F … +158 °F)

      With separate housing:
      -50 °C … +120 °C

      (-58 °F … +248°F)

    • Process temperature

      -80 °C … +200 °C
      (-112 °F … +392 °F)

    • Process pressure absolute / max. overpressure limit

      Vacuum … 100 bar
      (Vacuum … 1450 psi)

    • Main wetted parts

      Insulation material: PTFE, PFA

    • Process connection

      G 1/2 … 1 1/2
      NPT 1/2 … 1 1/2
      Flange from DN25…/ASME 1″…/JIS 10K…

    • Process connection hygienic

      Tri-Clamp ISO2852 gap free plated

      Dairy coupling

      Flush mount

    • Sensor length

      Total length of probe: max 6 m (20 ft)

    • Communication

      2- wire 19-253 VAC

      Relay DPDT
      8/16 mA

    • Certificates / Approvals


    • Safety approvals

      Overfill prevention WHG


    • Design approvals

      EN 10204-3.1

      NACE MR0175

    • Marine approval

      GL/ ABS/ DNV

    • Options

      Inactive length

      Fully isolated active build-up compensation

      Ground tube

      Separate housing

    • Components

      PFM: FTC325, FTC625, FTC470Z, FTC471Z

    • Application limits

      Notice the pressure and temperature derating.
      Notice for non conductive medium the DK.

    Datasheet: Technical Information Liquicap M FTI51, FTI52

    Weld-in adapter, process adapter and flanges

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