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Conductive
Point level detection
Liquipoint FTW31

Liquipoint FTW31 ©Endress+Hauser

Rod probe for multipoint detection for up to 5 switch points

The Liquipoint FTW31 offers simple and safe point level detection in conductive liquids. It offers numerous measuring possibilities due to multipoint detection (up to 5 rods).

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Meet your basic measurement needs

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Handle your core processes easily

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Variable

  • Specs at a glance

    • Process temperature

      -40 °C ... 100 °C
      (-40 °F ... 212 °F)

    • Process pressure absolute / max. overpressure limit

      Vacuum ... 10 bar
      (Vacuum ... 145 psi)

    • Min. conductivity of medium

      10 µS/cm

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Additional components

  • Benefits

    • Cost-effective probe for conductive liquids with detection of up to five point levels with one probe

    • No calibration required

    • Standard setting for the most common conductive liquids

    • No moving parts in the tank - long service life, reliable operation with...

  • Field of application

    For use in conductive liquids (as of 10μS/cm). For overfill prevention, dry running protection,
    two-point control of pumps or multiple point detection.

    • Process connections: Threads

    • Sensor length: 0.1 to 4m (3.9 to 157")

    • Temperature: -40 to 100°C (-40...

Features and specifications

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Details

  • Measuring principle

    Conductive

  • Characteristic / Application

    Compact rod probe with multipoint detection, possible up to 5 switch points. Simple rod shortening.

  • Supply / Communication

    DC PNP 10,8V ... 45V
    Relay 20V ... 230V AC
    Relay 20V ... 55V DC

  • Ambient temperature

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

  • Process temperature

    -40 °C ... 100 °C
    (-40 °F ... 212 °F)

  • Process pressure absolute / max. overpressure limit

    Vacuum ... 10 bar
    (Vacuum ... 145 psi)

  • Min. conductivity of medium

    10 µS/cm

  • Main wetted parts

    316L, PP, PPS

  • Max. tensile strength

    1000 N

  • Process connection

    G 1 1/2
    NPT1 1/2"

  • Sensor length

    0.1m ... 4m
    (3.9" ... 157")

  • Communication

    DC PNP
    Relay

  • Certificates / Approvals

    ATEX, EAC Ex

  • Safety approvals

    Leakage Detection

  • Components

    Transmitter: FTW325

  • Application limits

    Observe min. medium conductivity

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
    • Order code

      Unit is not repairable.

    • Order code 52017268

      Cover F24, PBT (FTW31/32), gasket

      Usage: version without electronics.

    • Order code 52025606

      Cover F16 grey, PBTP, gasket

      Gasket EPDM. Usage: housing F16 Polyester, FMI21, FMI51/FMI52, FMU30, FTI51/FTI52/ FTI55/FTI56, FTI77, FTL50/FTL51/FTL51C/ FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTW31/FTW32.

    • Order code 52004137

      O-ring 71.0x3.55 EPDM, 5 pieces

      Usage: cover, housing F16, Polyester.

    • Order code 52017271

      Electronics FEW52

      Usage: point level switch, conductive, FTW31/FTW32. Output PNP 10.8-45VDC.

    • Order code 52017272

      Electronics FEW54

      Usage: point level switch, conductive, FTW31/FTW32. Output relay 20-253VAC, 20-55VDC.

    • Order code 52017273

      Electronics FEW58

      Usage: point level switch, conductive, FTW31/FTW32. Output NAMUR.

    • Order code 52026734

      Cable monitoring board

      Liquipoint T.

    • Order code 52017270

      Provide spacer FTW31-rods, 4 pieces

    • Order code 71127760

      Protection cover F16 housing

      Usage: FDR56, FMI21, FMI51/FMI52, FQR56, FTI51/FTI52/FTI55/FTI56, FTI77, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTM20/FTM21, FTM50/FTM51/FTM52, FTR20, FTW31/FTW32/FTW33.

  • 57
    • Nr 57 Order code 52014047

      Sealing ring G1-1/2, 48x55 FA, 5 pcs.

      Process gasket DIN7603-A. Usage: process connection, FMI21, FMI51/FMI52, FTI51/FTI52, FTI55, FTW31/FTW32, FMP51/FMP57, FMR60/FMR62/FMR67, Sliding sleeve G1-1/2 316L (52003665), 316L,3.1 (52011882), FTL51, FTL71,FTL81, AlloyC4 (52003666), FTL51, FTL71.

    • Order code 52014146

      Mounting nut G1-1/2

      Hexagon, SW60. Usage: Liquipoint T, Liquicap T, Prosonic M FMU40, Prosonic T FMU30, FMR10, FMR20.

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      Endress+Hauser Operations app

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    • Insitu (in-situ, on-site, onsite) verification by a service technician Insitu (in-situ, on-site, onsite) verification by a service technician

      Your safety is our mission

      Our experience and know-how ensures maximum safety and maximum availability of your system. Find out how you could benefit from our expertise.

    • Unstable measurement in the ammonia separator? Levelflex FMP the reliable level measurement sensor. Unstable measurement in the ammonia separator? Levelflex FMP the reliable level measurement sensor.

      Unstable measurement in your ammonia separator?

      Our Levelflex FMP is the reliable level measurement sensor for hazardous liquids such as ammonia. Find out more about how to achieve a safe and efficient chemical process at the same.

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