Ultrasonic measurement
Time-of-Flight
Prosonic FMU41

Prosonic FMU41 ©Endress+Hauser

Time-of-Flight measuring principle

  • Prosonic FMU41

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 8m

The Prosonic FMU41 sensor is suited for non-contact level measurement in fluids, pastes, coarse bulk material and flow measurement in open channels or at weirs. The two-wire or four-wire compact transmitter can be used in applications with storage tanks, agitators, on stockpiles and conveyor belts. The envelope curve can be shown on the on-site display for simple diagnosis. Linearization function (up to 32 points) for conversion of the measured value into any unit of length, volume or flow rate.

Additional components

  • Benefits

    • Reliable non-contact measurement

    • Quick and simple commissioning via menu-guided on-site operation with four-line plain text display, 7 languages selectable

    • Envelope curves on the on-site display for simple diagnosis

    • Hermetically sealed and potted sensor

    • ...

  • Field of application

    Two-wire or four wire instrument for continuous non-contact level and flow measurement.

    • Process connection: Thread

    • Temperature: -40 to +80°C (-40 to +176°F)

    • Pressure: +0.7 to +3bar (+10 to +44psi)

    • Maximum measuring distance: Liquids 8m (26ft), Solids 3...

Features and specifications

Back

Details

  • Measuring principle

    Ultrasonic

  • Product headline

    Compact ultrasonic measuring instrument
    Cost effective solution for open channels

  • Max. measurement error

    Low accuracy

  • Measuring range

    Measuring distance 0,4...8m [1.3...26ft]

  • Max. process pressure

    atm.

  • Medium temperature range

    -40°C...80°C
    (-40°F...176°F)

  • Degree of protection

    IP68

  • Outputs

    4...20mA(Hart),PA,FF

  • Inputs

    2-wire 16-36V DC
    4-wire 16-36V DC
    90-253V AC 50/60Hz

  • Digital communication

    PROFIBUS PA, FOUNDATION Fieldbus

  • Hazardous area approvals

    ATEX, FM, CSA

  • Measuring principle

    Ultrasonic

  • Characteristic / Application

    Compact ultrasonic transmitter

  • Supply / Communication

    2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus

  • Accuracy

    +/- 2 mm or +/- 0,2 % of set measuring range 1)

  • Ambient temperature

    -40 °C ... 80 °C
    (-40 °F ... 176 °F)

  • Process temperature

    -40 °C ... 80 °C
    (-40 °F ... 176 °F)

  • Process pressure absolute / max. overpressure limit

    0.7 bar ... 3 bar abs
    (10 psi ... 44 psi)

  • Main wetted parts

    PVDF

  • Process connection

    G / NPT 2"

  • Blocking distance

    0.35 m (1.15 ft)

  • Max. measurement distance

    3.5 m (11 ft)

  • Communication

    4 ... 20 mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Certificates / Approvals

    ATEX, FM, CSA, TIIS, INMETRO, NEPSI

  • Application limits

    Take notice of range diagram

  • Measuring principle

    Ultrasonic

  • Characteristic / Application

    Compact ultrasonic transmitter

  • Supply / Communication

    2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus

  • Accuracy

    +/- 2 mm or +/- 0,2 % of set measuring range

  • Ambient temperature

    -40 °C ... 80 °C
    (-40 °F ... 176 °F)

  • Process temperature

    -40 °C ... 80 °C
    (-40 °F ... 176 °F)

  • Process pressure absolute / max. overpressure limit

    0.7 bar ... 3 bar abs
    (10 psi ... 44 psi)

  • Main wetted parts

    PVDF

  • Process connection

    G / NPT 2"

  • Blocking distance

    0.35 m (1.15 ft)

  • Application

  • Max. measurement distance

    8 m (26 ft)

  • Communication

    4 ... 20 mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Certificates / Approvals

    ATEX, FM, CSA, TIIS, INMETRO, NEPSI

  • Application limits

    For higher resistance:

    FMU42/FDU9x

    Foam / high turbulence possible:

    FMU42/FDU91

    Fast filling and discharging rate:

    FMU90 + FDU9x

    Level limit detection:

    FMU90 + FDU9x

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
    • Order code 52006628

      Instrument plug M20-M12 "PA" (WDM)150

      4-pin metall plug for installation in the device, providing connection to a T-Box (WDM) or cable socket (WDM). Cable length: 150mm. Not suitable for PROMAG and PROMAG.

  • 12
    • Nr 12 Order code 535720-9020

      Set of screws housing F12/T12/F23

      Consists of: 1x stop screw M5x10. 1x retaining screw M8x10. Usage: FMR230/FMR231, FMR240/FMR244/FMR245, FMR250, FMU40/FMU41/FMU42/FMU43/FMU44.

  • 65
    • Nr 65 Order code 52010526

      Sealing kit FMU4x

      Consists of: 1x O-ring 113.9x3.53 EPDM. 1x O-ring 72.0x3.0 EPDM. 1x O-ring 49.21x3.53 EPDM. 1x flat gasket 47x58x2 EPDM. 1x flat gasket 59x68x2.5 EPDM. 2x O-ring 17.0x2.0 EPDM. Usage: FMU40/FMU41/FMU42/ FMU43/FMU44.

  • 20
    • Nr 20 Order code 517391-0011

      Cover F12/T12 Alu, coated, gasket

      Material: aluminium, coated. O-ring EPDM. Usage: FMR230/FMR231, FMR240/FMR244/FMR245, FMR250, FMU40/FMU41/FMU42/FMU43/FMU44.

    • Nr 20 Order code 52005936

      Cover F12/T12 Alu, window, gasket

      Material: aluminium. Usage: VU331, housing F12/T12, Micropilot M/S, Prosonic M, Levelflex M.

  • 11
    • Nr 11 Order code 52005643

      Hood housing T12

      Cable compartment, electronics side. Usage: Micropilot M/S, Prosonic M, Levelflex M.

    • Nr 11 Order code 52006026

      Cover terminal compartment F12/F23

      Hood terminal compartment. Usage: Micropilot M, Prosonic M, Levelflex M.

    • Nr 11 Order code 52019062

      Cover terminal compartment F12/F23,FHX40

      Hood terminal compartment. Usage: separate display, Micropilot M, Prosonic M, Levelflex M.

  • 25
    • Nr 25 Order code 518710-0020

      Cover T3/T12 Alu, coated, gasket

      Material: aluminium, coated. O-ring EPDM. Usage: FMR230/FMR231,FMR240/FMR244/ FMR245, FMR250, FMR530/FMR531/FMR532/ FMR533, FMR540, FMU40/FMU41/FMU42.

  • 35
    • Nr 35 Order code 52006197

      Terminal module 4-pole, HART, 2-wire

      Cable connection. Usage: housing F12/F23, Micropilot M, Levelflex M, Prosonic M.

    • Nr 35 Order code 52012156

      Terminal module 4-pole, PA, FF

      PROFIBUS PA, FOUNDATION Fieldbus. Usage: Micropilot II/M, Prosonic M, Levelflex M.

    • Nr 35 Order code 52013302

      Terminal mod. Ex d, 4-pol., 2wr,HART,T12

      Usage: housing T12, Levelflex M, Prosonic M, Micropilot M.

    • Nr 35 Order code 52013303

      Terminal mod. Ex d, 2-pol.,2wr,PA/FF,T12

      2-wire, PROFIBUS PA/FOUNDATION Fieldbus. Ex d limiter. Usage: housing T12, Levelflex M, Micropilot M, Prosonic M.

    • Nr 35 Order code 52013304

      Power supply 10.5-32VDC (housing F12)

      Usage: electronics 4-wire, Levelflex M, Prosonic M.

    • Nr 35 Order code 52013305

      Power supply 90-250VAC (housing F12)

      Usage: electronics 4-wire, Levelflex M, Prosonic M.

    • Nr 35 Order code 52015585

      Power supply CSA, 10.5-32VDC (housg F12)

      Usage: electronics 4-wire, Levelflex M, Prosonic M.

    • Nr 35 Order code 52015586

      Power supply CSA, 90-250VAC (housg F12)

      Usage: electronics 4-wire, Levelflex M, Prosonic M.

    • Nr 35 Order code 52018949

      Terminal mod. 4-pol.,EEx ia,HART,T12,OVP

      4-pole, 2-wire. OVP = overvoltage protection. Usage: housing T12, Levelflex M, Prosonic M, Micropilot M.

    • Nr 35 Order code 52018950

      Terminal mod. 2-p.,EEx ia,PA/FF,T12,OVP

      2-pole, 2-wire. PROFIBUS PA, FOUNDATION Fieldbus. OVP = overvoltage protection. Usage: housing T12, Levelflex M, Prosonic M, Micropilot M.

  • 30
    • Nr 30 Order code 71025600

      Electronics FMU4x, Ex, 2-wire, HART,v4.0

      4-20mA, version 4.0. Usage: FMU40/FMU41/FMU42/FMU43/FMU44.

    • Nr 30 Order code 71025602

      Electronics FMU4x, Ex, 4-wire, HART,v4.0

      4-20mA, version 4.0. Usage: FMU40/FMU41/FMU42/FMU43/FMU44.

    • Nr 30 Order code 71025603

      Electronics FMU4x, Ex, PA, v4.0

      PROFIBUS PA, version 4.0. Usage: FMU40/FMU41/FMU42/FMU43/FMU44.

    • Nr 30 Order code 71025604

      Electronics FMU4x, Ex, FF, v4.0

      FOUNDATION Fieldbus, version 4.0. Usage: FMU40/FMU41/FMU42/FMU43/FMU44.

  • 40
    • Nr 40 Order code 52026443

      Display VU331, version 2

      Alphanumeric display, 4-line. Usage: FMR530/532/533, FMR540, FMU40/41/42/43/44.

    • Order code FHX40-

      Display FHX40

      Remote display + local operation. 4-line LC-display. :: Menu driven plain text operation. :: Easy setup. :: User language selectable. :: Envelope curve display on site. Usage: FMG60, FMU40/FMU41/FMU42/FMU43/FMU44.

  • 50
    • Nr 50 Order code 52010508

      Sensor FMU41 NPT2

      Threaded boss. Usage: FMU41.

    • Nr 50 Order code 52010510

      Sensor FMU41 G2

      Threaded boss G2. Gasket, hexagon nut. Usage: FMU41.

  • 58
    • Nr 58 Order code 52000598

      Hexagon nut (SW70) G2, bk, PC

      Usage: sensor 2", FMR10, FMR20, FMU30, FMU40/FMU41.

    • Order code

      Screw in flange FAX50 please order with separat order structure.

    • Order code 52018204

      Adaption kit housing F12, 2-wire, FHX40

      Modification to remote display. Housing F12, 2-wire electronics. Non-hazardous area only. Please order FHX40 separately. Usage: Micropilot II/M, Prosonic M, Levelflex M.

    • Order code 52018205

      Adaption kit housing F12, 4-wire, FHX40

      Modification to remote display. Housing F12, 4-wire electronics. Non-hazardous area only. Please order FHX40 separately. Usage: Levelflex M, Prosonic M.

    • Order code 52016334

      Cable FHX40, 20m

      Connection cable, doubled shielded. Usage: FHX40.

    • Order code 71020502

      Cable FHX40, 5m

      Connection cable, doubled shielded. Usage: FHX40.

    • Order code 71020503

      Cable FHX40, 10m

      Connection cable, doubled shielded. Usage: FHX40.

    • Order code 71020504

      Cable FHX40, 30m

      Connection cable, doubled shielded. Usage: FHX40.

    • Order code 71007843

      ToF Adapter FXA291

      Usage: connection Micropilot M, Micropilot S, Levelflex M, Prosonic M, Tank Side Monitor, Deltabar S, Cerabar S, Gammapilot M, Micropilot I, to Commubox FXA291.

    • Order code 543199-0001

      Protective cover for housing T12/F12, SS

      Usage: Micropilot M, Micropilot S, Prosonic M, Levelflex M. Material: 316Ti.

    • Order code 71000221

      Adapterk. FMR2xx,FMx4x,PMx7x,FMD7x,FMG60

      Connection service tool RS232(52013675)/ ToF adapter FXA291 (71007843). Usage: FMG60, FMD77/FMD78, FMR230/ FMR231, FMR240/FMR244/FMR245, FMR250, FMU40/FMU41/FMU42/FMU43/FMU44, NRF590, PMC71, PMD75, PMP71/PMP75.

    • Order code 52013874

      Mounting bracket FHX40 1" / 2" pipe

      Usage: FHX40.

    • Order code 942669-0001

      Installat_bracket 250x400x120 G2

      Material: 316Ti. Usage: Prosonic T/M, FMR10, FMR20.

    • Order code 52014135

      Sensor support 500mm, ST, 2"-sensor

      Mounting 2"-sensor. Material: steel zinc coated. Usage: installation brackets, FMR10, FMR20.

    • Order code 52014136

      Sensor support 500mm, SS, 2"-sensor

      Mounting 2"-sensor. Material: 316Ti. Usage: installation brackets, FMR10, FMR20.

    • Order code 52014137

      Sensor support 1000mm, ST, 2"-sensor

      Mounting 2"-sensor. Material: steel zinc coated. Usage: installation brackets, FMR10, FMR20.

    • Order code 52014138

      Sensor support 1000mm, SS, 2"-sensor

      Mounting 2"-sensor. Material: 316Ti. Usage: installation brackets, FMR10, FMR20.

    • Order code 919792-0000

      Wall bracket for sensor support, ST

      Material: steel zinc coated. Usage: FMR10, FMR20.

    • Order code 919792-0001

      Wall bracket for sensor support, SS

      Material: 316Ti. Usage: FMR10, FMR20.

  • Predecessor

Success stories

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Find out more here

Compare products

Please select your market / region

Go to selected market / region