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Prosonic FMU41 - Ultrasonic measurement

Ultrasonic measurement
Time-of-Flight
Prosonic FMU41

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

FMU41
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Prosonic FMU41
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©Endress+Hauser

Specs at a glance

  • Accuracy

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

  • 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)

  • Max. measurement distance

    3.5 m (11 ft)

  • Main wetted parts

    PVDF

Field of application

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.

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 3.5m (11ft)

  • Blocking distance: Liquids and Solids 0.35m (1.15ft)

  • 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

Videos

  • Time-of-Flight measuring principle

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