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FMU4201

FMU42 Ultrasonic measurement Time-of-Flight Prosonic

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 10m

Field of application

The Prosonic FMU42 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.

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

  • Process connection: Flange

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

  • Pressure: +0.7 to +2.5bar (+10 to +36psi)

  • Maximum measuring distance: Liquids 10m (33ft), Solids 5m (16ft)

  • Blocking distance: Liquids and Solids 0.4m (1.3ft)

  • International explosion protection certificates

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

  • Chemically resistant sensor out of PVDF

  • Calibration without filling or discharging

  • Integrated temperature sensor for automatic correction of the temperature dependent sound velocity

  • Measuring principle

    Ultrasonic

  • Characteristic / Application

    Compact ultrasonic transmitter

  • Supply / Communication

    2-wire HART

  • Accuracy

    +/- 4 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 / max. overpressure limit

    0.7 bar ... 2.5 bar abs
    (10 psi ... 36 psi)

  • Main wetted parts

    PVDF

  • Process connection

    Flange
    DN80, ASME 3", JIS 10K 80
    DN100,ASME 4", JIS 10K 100
    Mounting bracket

  • Blocking distance

    0.4 m (1.3 ft)

  • Max. measurement distance

    Liquids: 10 m (33 ft),
    Solids: 5 m (16 ft)

  • Communication

    4...20 mA HART

  • Certificates / Approvals

    ATEX, FM, CSA, INMETRO, NEPSI

  • Application limits

    Foam / high turbulence possible:
    FMU44/FDU92
    Fast filling and discharging
    rate:
    FMU90 + FDU9x
    Level limit detection
    FMU90 + FDU9x