fbpx
Last Updates: 21/04/2021

E+H Liquiphant FTL71 Vibronic Point level switch

Liquiphant FTL71 is a point level switch with extension tube for use in hazardous areas with all international certificates. FTL71 is especially designed for applications with high process temperatures up to 280°C and can be used up to SIL2, in homogeneous redundancy up to SIL3. An integrated second line of defense offers the highest degree of safety. Reliable measurement values, not affected by: changing media properties, flow, turbulences, gas bubbles, foam, vibrations or build-up.

  • Use in safety systems requiring functional safety to SIL2 in accordance with IEC 61508/IEC 61511-1
  • With welded gas-tight feed-through maximum safety in the event of damaged sensor
  • Wide variety of electronics, e.g. NAMUR, relay, thyristor, PFM signal output: the right connection for every process control system
  • Large number of process connections to choose from: universal usage
  • 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)

Point level switch for all liquids.

  • Process connections: Threads and flanges
  • Temperature: -60 to +280°C (-76 to +540°F)
  • Pressure: -1 to +100bar (-14.5 to +1,450psi)
  • Sensor material: 316L, Alloy (PFA and Enamel on request)
  • International explosion protection certificates, overfill prevention WHG, SIL, marine approvals
  • Measuring principle

    Vibration Liquids

  • Characteristic / Application

    Modular housing concept
    High process temperatures up to 280°C
    wide range of process connections
    Analogue and bus interfaces
    Extensive certificate range (e.g. Ex,WHG)
    compact, e.g. pipes
    Dual Sealing / Second line of defense

  • Specialities

    Foam detection
    Detect a density change
    second line of defense

  • Supply / Communication

    PROFIBUS PA
    19…253V AC
    10…55V DC-PNP
    19…253V AC bzw 10…55V DC
    8/16mA, 11…36V DC
    NAMUR
    PFM

  • Ambient temperature

    -50 °C…+70 °C
    (-58 °F…+158 °F)

  • Process temperature

    -60 °C…+280 °C
    (-76 °F…+540 °F)
    (300°C / 572°F, 50h cumulated)

  • Process pressure absolute / max. overpressure limit

    Vacuum…100 bar
    (Vacuum…1450 bar)

  • Min. density of medium

    0.5g/cm³ (0.4g/cm³ optional)

  • Main wetted parts

    316L / Alloy
    PFA and Enamel on request

  • Process connection

    Thread:

    G3/4A, G1A, R3/4″, R1, NPT3/4, NPT1

    Flange:

    DIN DN25…DN100,

    ASME 1″…4″,

    JIS 25A…100A

  • Sensor length

    Length 130mm (5.12″) (Liquiphant II)
    148mm…3000mm / 6000mm optional
    (5.83″…118″ / 236″ optional)

  • Communication

    PROFIBUS PA
    19…253V AC
    10…55V DC-PNP
    19…253V AC bzw 10…55V DC
    8/16mA, 11…36V DC
    NAMUR
    PFM

  • Certificates / Approvals

    ATEX, FM, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI

  • Safety approvals

    Overfill prevention WHG

    SIL

  • Design approvals

    EN 10204-3.1

    NACE MR0175, MR0103

    ASME B31.3

    AD2000

  • Marine approval

    GL/ ABS

  • Options

    Heavy duty stainless steel housing mainly for the oil and gas industry

  • Components

    FTL325P/FTL375P Interface PFM
    FTL325N/FTL375N Interface NAMUR

Datasheet: Liquiphant S FTL70, FTL71 Technical Information

Scroll to Top
×