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Prosonic FDU90 - Ultrasonic measurement

Ultrasonic measurement
Time-of-Flight
Prosonic FDU90

Ultrasonic sensor for level and flow measurement for connection to FMU9x (measuring range up to 3m)

FDU90
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  • Measuring principle

    Ultrasonic

  • Characteristic / Application

    Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter

  • Specialities

    Floating protection tube

  • Supply / Communication

    4-wire (HART, PROFIBUS DP)

  • Accuracy

    +/- 2mm + 0.17% of measured distance

  • 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 ... 4 bar abs
    (10 psi ... 58 psi)

  • Main wetted parts

    PVDF (IP68 / NEMA6P)

  • Process connection

    Front side thread:
    G / NPT 1 1/2"
    Rear side thread:
    G / NPT 1"
    Ceiling mounting

  • Blocking distance

    0.07 m (0.23 ft)

  • Max. measurement distance

    Liquids: 3 m (9.8 ft),
    Solids: 1.2 m (3.9 ft)

  • Communication

    Transmitter:
    4 ... 20 mA HART
    PROFIBUS DP

  • Certificates / Approvals

    ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex

  • Options

    Second 4...20mA output

  • Components

    Transmitter:
    FMU90, FMU95

  • Application limits

    Foam / high turbulence possible:
    FDU92
    Flange-flush assembly:
    FDU91F
    For tank farms scanner:
    FMU95

  • Measuring principle

    Ultrasonic

  • Characteristic / Application

    Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter

  • Supply / Communication

    4-wire (HART, PROFIBUS DP)

  • Accuracy

    +/- 2mm + 0.17% of measured distance

  • 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 ... 4 bar abs
    (10 psi ... 58 psi)

  • Main wetted parts

    PVDF (IP68 / NEMA6P)

  • Process connection

    Front side thread:
    G / NPT 1 1/2"
    Rear side thread:
    G / NPT 1"
    Ceiling mounting

  • Blocking distance

    0.07 m (0.23 ft)

  • Max. measurement distance

    Liquids: 3 m (9.8 ft),
    Solids: 1.2 m (3.9 ft)

  • Communication

    Transmitter:
    4 ... 20 mA HART
    PROFIBUS DP

  • Certificates / Approvals

    ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex

  • Options

    Second 4...20mA output

  • Components

    Transmitter:
    FMU90

  • Measuring principle

    Ultrasonic

  • Product headline

    Version with separate transmitter in field housing or top hat rail housing
    Cost effective solution for open channel flow measurement in water / wastewater plants

  • Max. measurement error

    Accuracy:
    distance measurement: +/- 2mm + 0.17%

  • Measuring range

    Up to 3 m / 9.8 ft

  • Max. process pressure

    0.4 bar...4 bar
    (10 psi...58 psi)

  • Medium temperature range

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

  • Degree of protection

    IP68

  • Display/Operation

    Transmitter FMU90

  • Outputs

    Transmitter:
    4 ... 20 mA HART
    PROFIBUS DP

  • Inputs

    Transmitter FMU90

  • Digital communication

    HART, PROFIBUS DP

  • Hazardous area approvals

    ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex

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