Ultrasonic sensor for non-contact level measurement of fluids, pastes and coarse bulk materials - Prosonic FMU30

Ultrasonic sensor for non-contact level measurement

Prosonic T FMU30

from €397.-
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    • Non-contact measurement method minimizes service requirements
    • Quick and simple commissioning via menu-guided onsite operation
    • Envelope curves on the on-site display

    Specs at a glance

    Function Continuous level measurement
    Maximum measuring range in fluids 8 m
    Maximum measuring range in bulk materials 3.5 m
    Blocking distance ≥0.25 m
    Typical measuring error ±3 mm (±0.12 in) or 0.2 % of measuring distance

    Prosonic T FMU30

    Product / VersionPrice / pcs. in EUROrder code
    ApprovalDisplay; OperatingProcess Connection1 to 34 to 1011+
    Non-hazardous areaW/o; via spare part display FMU30Thread ISO228 G1-1/2, PP484,-436,-397,- FMU30-AAGEAAGGF
    Add to cart
    Thread ISO228 G2, PP542,-488,-445,- FMU30-AAGEABGHF
    Add to cart
    Envelope curve display on site; push buttonThread ISO228 G1-1/2, PP586,-527,-480,- FMU30-AAHEAAGGF
    Add to cart
    Thread ISO228 G2, PP643,-579,-528,- FMU30-AAHEABGHF
    Add to cart
    ATEX II 1/2G Ex ia IIC T5W/o; via spare part display FMU30Thread ISO228 G1-1/2, PP618,-556,-507,- FMU30-BBGEAAGGF
    Add to cart
    Thread ISO228 G2, PP676,-608,-554,- FMU30-BBGEABGHF
    Add to cart
    Envelope curve display on site; push buttonThread ISO228 G1-1/2, PP719,-647,-590,- FMU30-BBHEAAGGF
    Add to cart
    Thread ISO228 G2, PP777,-699,-637,- FMU30-BBHEABGHF
    Add to cart

    Prices valid until 31.08.2018 in EUR per unit (not including shipping and applicable sales tax). See
    Endress+Hauser Terms and Conditions

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  • Application

    Prosonic T FMU30 is a sensor for continuous, non-contact level measurement in simple applications. It can be used in fluids, pastes, sullages and coarse bulk materials. FMU30 is not suited for liquids with foam at the surface.

    Function

    The sensor of the instrument transmits ultrasonic pulses in the direction of the product surface. There, they are reflected back and received by the sensor. The instrument measures the time between pulse transmission and reception. The instrument uses the time (and the velocity of sound) to calculate the distance between the sensor membrane and the product surface.

    Application example

    Ultrasonic sensor for non-contact level measurement - Application example

    Level measurement in a pump shaft

     

    a) Venting hole

  • Technical data

    Input
    Max. range fluids

    Sensor 1½": 5 m (16 ft)

    Sensor 2": 8 m (26 ft)
    Max. range bulk materials

    Sensor 1½": 2 m (6.6 ft)

    Sensor 2": 3,5 m (11 ft)
    Operating frequency

    Sensor 1½": approx. 70 kHz

    Sensor 2": approx. 50 kHz
    Pulse frequency Max. 0.5 Hz
    Emitting angle α 11°
    Blocking distance

    Sensor 1½": 0.25 m (0.8 ft)

    Sensor 2": 0.35 m (1.1 ft)
    Output
    Output signal 4 to 20 mA
    Signal on alarm Selectable, according to NAMUR NE43
    Output damping Freely selectable, 0 to 255 s
    Linearization Up to 32 value pairs
    Power supply
    Supply voltage 14 to 35 V DC (protective circuitry against reverse polarity is built into the device)
    Power consumption 51 to 800 mW
    Cable gland M20 × 1.5 (recommended cable diameter 6 to 10 mm (0.24 to 0.39 in))
    Performance characteristics
    Reference operating conditions

    Temperature = +20 °C (+68 °F);

    Pressure = 1013 mbar abs. (15 psi abs.);

    Humidity = 50 %;

    Ideal reflective surface (e.g. calm, smooth fluid surface)
    Typical measuring error ±3 mm (±0.12 in) or 0.2 % of measuring distance
    Measured value resolution 1 mm (0.04 in)
    Operating conditions
    Ambient temperature –20 to +60 °C (–4 to +140 °F)
    Storage temperature –40 to +80 °C (–40 to +176 °F)
    Process temperature –20 to +60 °C (–4 to +140 °F)
    Process pressure 0.7 to 3 bar abs. (10.15 to 43.5 psi)
    Ingress protection IP 66/68
    Climate class DIN EN 60068-2-38 (Test Z/AD) DIN/IEC 68 T2-30Db
    Vibration resistance DIN EN 60068-2-64 / IEC 68-2-64: 20 to 2000 Hz, 1 (m/s²)²/Hz; 3 × 100 min
    Electromagnetic    compatibility (EMC) according to all relevant requirements of the EN 61326 series
    Materials
    Sensor PP
    Sealing EPDM
    Housing PBT-FR (cover PBT/PA)
    Housing design
    Type of housing   F16 plastic housing
     Cover

     Plastic cover

    – For version without on-site display (low, grey)

    – For version with on-site display (high, transparent)
    Operability
    Display and operating elements menu-guided on-site operation with four-line plain text display with envelope curves; Commubox FXA291 (available as accessory)

    Dimensions (in mm)

    Ultrasonic sensor for non-contact level measurement - Dimensions

    a) Sensor 1½"

    b) Sensor 2"

     

    Installation according to instruction manual.

    Electrical connection

    Ultrasonic sensor for non-contact level measurement - Connecting

    a) Terminals

    b) Optional: display

    c) Internal earth terminal

    d) External earth terminal

    e) Display

    f) Power

    g) Plant ground

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