Liquiphant 31 - Liquid level switch
A3EHEDG



Point level switch for liquid, pasty and sticky media in the food and beverage industry

Liquipoint FTW33

from $263.-
Payment on invoice or with
  • Maestro
  • MasterCard
  • Visa
Need help?

Info-Hotline
888-343-4732

Request for Quote >>>
    • Flush-mounted installation, pipes remain piggable
    • For water- and oil-based media
    • Reliable switching function due to compensation even in the case of heavy buildup 

    Specs at a glance

    Product Liquid, pasty and sticky media (DC ≥ 2)
    Installation Vessels and pipes
    Process temperature range –20 to +100 °C (–4 to +212 °F)
    (For 1 hour: +150 °C (+302 °F))
    Process pressure range –1 to +25 bar
    (–14.5 to +362.5 psi)
    Product / VersionPrice / pcs. in USDOrder code
    Electrical ConnectionProcess Connection1 to 34 to 1011+
    Plug M12, IP65/67 NEMA Type 4 Encl.Tri-Clamp376.-350.-331.- FTW33-xx4Mxxx
    Select options
    Thread ISO228 G1, 316L, install > accessory weld-in adapter317.-295.-279.- FTW33-xx4MWSJ
    Select options
    Thread G1/2, 316L install > process sleeve hygienic310.-288.-273.- FTW33-xx4MWVJ
    Select options
    Thread ISO228 G3/4, 316L, install > accessory weld-in adapter298.-278.-263.- FTW33-xx4MW5J
    Select options
    Plug M12, IP66/68/69 NEMA Type 4/6P Encl.Tri-Clamp413.-385.-364.- FTW33-xx4Nxxx
    Select options
    Thread ISO228 G1, 316L, install > accessory weld-in adapter355.-330.-312.- FTW33-xx4NWSJ
    Select options
    Thread G1/2, 316L install > process sleeve hygienic347.-323.-306.- FTW33-xx4NWVJ
    Select options
    Thread ISO228 G3/4, 316L, install > accessory weld-in adapter336.-313.-296.- FTW33-xx4NW5J
    Select options
    Valve plug ISO4400 NPT1/2, IP65 NEMA Type 4 Encl.Tri-Clamp376.-350.-331.- FTW33-xx4Vxxx
    Select options
    Thread ISO228 G1, 316L, install > accessory weld-in adapter317.-295.-279.- FTW33-xx4VWSJ
    Select options
    Thread G1/2, 316L install > process sleeve hygienic310.-288.-273.- FTW33-xx4VWVJ
    Select options
    Thread ISO228 G3/4, 316L, install > accessory weld-in adapter298.-278.-263.- FTW33-xx4VW5J
    Select options

    Accessories

    Product / VersionPrice / pcs. in USDOrder code
    Weld-in adapter G3/4 d=50, 316L26.67 71258355
    Add to cart
    Weld-in adapter G3/4, d=29, 316L26.67 71258357
    Add to cart
    Weld-in adapter G1, d=60, 316L55.87 52001051
    Add to cart
    Weld-in adapter G1, d=53, 316L37.95 71258358
    Add to cart
    Cable 4x0.34, box M12, 316L,LED,90o,L=5m23.93 52018763
    Add to cart
    Cable 4x0.34, box M12,Cu Sn/Ni,90o,L=5m12.63 52010285
    Add to cart
    Socket for plug 4p-125V, 4A-M1216.91 52006263
    Add to cart
    Test magnet9.53 71267011
    Add to cart

    Prices valid until 30.11.2017 in USD per unit (not including shipping and applicable sales tax). See
    Endress+Hauser Terms and Conditions

    People who bought this also watched

    Liquiphant FTL33 [FTL20H]
    Liquiphant FTL33 [FTL20H] >>>

    Liquiphant FTL31 [FTL20/FTL260]
    Liquiphant FTL31 [FTL20/FTL260] >>>

  • Application

    The Liquipoint FTW33 is a point level switch for liquid and pasty media. It is used preferably in storage tanks, mixing vessels and pipes. Developed and built for the food and beverage industry, the Liquipoint FTW33 meets international hygienic requirements. It is particularly suited to applications where flush-mounting is necessary. The Liquipoint FTW33 can be used permanently in process temperatures up to 100 °C (212 °F) and for 60 minutes in cleaning and sterilization processes up to 150 °C (302 °F). The Liquipoint FTW33 can also be used for detecting the foam that commonly occurs within the food and beverage industry.

    Function

    A low, galvanically isolated AC voltage is applied at the electrode in contact with the process. If liquid or pasty media come in contact with the electrode, a measurable current flows and the Liquipoint FTW33 switches. Active buildup compensation ensures reliable switching of the measuring device even if buildup occurs on the sensor.

    Application Example

    Point Level switch for liquids Liquiphant FTL31 - Installation example

    The measuring system consists of a Liquipoint FTW33 point level switch, e.g. for connection to programmable logic controllers (PLC).

    a) Overfill protection or upper level detection (MAX)

    b) Pump dry running protection (MIN)

    c) Lower level detection (MIN)

  • Technical data

    Output
    Function

    3-wire DC-PNP

    Positive voltage signal at the switch output of the electronics
    Connectable load 200 mA (short-circuit proof)
    Residual voltage <3 V
    Residual current <100 μA
    Supply voltage 10 to 30 V DC
    Power consumption <1 W (at max. load: 200 mA)
    Current consumption <15 mA
    Cable specification

    – M12 connector: IEC 60947-5-2

    – Valve plug: Cable cross-section ≤1,5 mm² (16 AWG ); ⌀ 3.5 to 8 mm

    – Cable: Cable cross-section 0,75 mm² (AWG 20)
    Connecting cable
    length    		 max. 25 Ω/core, total capacitance < 100 nF
    Performance characteristics
    Reference operating
    conditions

    Horizontal orientation:

    – Ambient temperature: 20 °C (68 °F) ±5 °C

    – Medium temperature: 20 °C (68 °F) ±5 °C

    – Process pressure: 1 bar (14.5 psi)

    – Medium: water

    – Conductivity: approx. 200 μS/cm
    Measured error ±1 mm (0.04 in) in accordance with DIN 61298-2
    Hysteresis max. 1 mm (0.04 in)
    Non-repeatability ±0.5 mm (0.02 in) in accordance with DIN 61298-2
    Switching delay

    0.5 s when sensor is covered;

    1.0 s when sensor is uncovered
    Switch-on delay <1 s (no defined switching status before this)
    Orientation any position
    Environment
    Ambient temperature
    range

    –40 to +70 °C (–40 to +158 °F) (at TProcess ≤ 90 °C (194 °F)),

    –40 to +45 °C (–40 to +113 °F) (at TProcess = 150 °C (302 °F))
    Storage temperature –40 to +85 °C (–40 to +185 °F)
    Climate class DIN EN 60068-2-38/IEC 68-2-38: test Z/AD
    Degree of protection

    – IP65 (valve plug)

    – IP65/67 NEMA Type 4X Enclosure (connector for plastic housing cover)

    – IP66/68/69K NEMA Type 4X/6P Enclosure (M12 connector for metal housing cover)

    – IP66/68 NEMA Type 4X/6P Encl. (cable)
    Cleaning

    Resistant to typical cleaning agents from the outside, in accordance with Ecolab test.
    Electromagnetic
    compatibility

    In accordance with EN 61326-Serie series and NAMUR Recommendation EMV (NE 21).
    Short-circuit
    protection

    Overload protection/short-circuit protection at I > 250 mA; the sensor is not destroyed. Intelligent monitoring: Testing for overload at intervals of approx. 1.5 s; normal operation resumes once the overload/short-circuit has been rectified
    Process
    Process temperature
    range    		 –20 to +100 °C (–4 to +212 °F) (For 1 hour: +150 °C (+302 °F))
    Process pressure range –1 to +25 bar (–14.5 to +362.5 psi)
    Standard and
    Extended

    The following settings can be made on the device using the test magnet:

    – Standard: For water- or alcohol-based media (DC ≥ 10)

    – Extended: For oil-based media (2 < DC < 10) or media which generate heavy buildup
    Mechanical construction
    Weight approx. 300 g (10.58 oz)
    Materials in contact
    with process

    – Sensor: 316L (1.4404), PEEK The material PEEK meets the requirements of EU 1935/2004, 10/2011 as well as
    2023/2006 and FDA 21 CFR 177.2415

    – Process connection: 316L (1.4404/1.4435)
    Materials not in
    contact with process

    Housing covers:

    – M12 metal: 316L (1.4404)

    – M12 plastic: PPSU; Design ring: PBT/PC

    – Valve connector, plastic: PPSU

    – Plastic cable: PPSU; Housing: 316L (1.4404)

    Housing: 316L (1.4404)
    Surface Ra ≤ 0.76 μm (30 μin)
    Approvals
    Approval CSA C/US General Purpose
    Sanitary compatibility 3-A; EHEDG

    Dimensions in mm (inches)

    Housing, Electrical connection

    Liquiphant 31 - Liquid level switch - Dimensions of the compact version

    a) Metal M12

    b) Plastic M12

    c) Plastic valve plug

     

    Installation according to instruction manual

     

    Process connections

    Liquiphant 31 - Liquid level switch - Dimensions of the short tube version

    a) Clamp DN25-38; 1 to 1½"

    b) Clamp DN40, 2"

    c) Thread G¾"

    d) Thread G1"

    e) Thread G½" Hygienc adapter

     

    Installation according to instruction manual

    Electrical connection

     

    Point Level switch for liquids Liquiphant FTL31 - Wiring the 3 wire version

    a) M12 connector

    b) Function monitoring with antivalence

    c) Valve plug

  • More documents for FTW33