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product picture of the ultrasonic flowmeter FLOWSIC600 DRU-S

FLOWSIC600 DRU-S
ultrasonic flowmeter

Simple and robust upstream gas flow measurement

IFL6DR
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Measuring / Application task

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  • Measuring principle

    Ultrasonic transit time difference measurement

  • Measured variables

    Volumetric flow a. c., volume a. c., gas velocity, sound velocity

  • Measuring Medium

    Natural gas, Associated gas , Raw Natural gas

  • Repeatability

    ± 0.2 % of the measured value
    (between Qt and Qmax depending on the installation requirements)

  • Accuracy

    Error limits Qt ... Qmax ± 2 %

  • Medium temperature range

    –40 °C ... +100 °C / –40 °F … 212 °F

  • Operating pressure range

    0 bar(g) … 16 bar(g) / 0 psi(g) … 230 psi(g) for ANSI CL150
    0 bar(g) … 100 bar(g) / 0 psi(g) … 1450 psi(g) for ANSI CL600

  • Nominal pipe size

    2" / 3" / 4"

  • Hazardous area approvals

    IECEx:
    Gb/Ga Ex db eb ib [ia Ga] IIA T4
    Ultrasonic transducer, intrinsically safe
     
    ATEX:
    II 1/2 (1) G Ex ia/ db eb ia [ia Ga] IIA T4 …T1 Ga/Gb
    Ultrasonic transducer, intrinsically safe
     
    NEC/CEC (US/CA):
    Class I, Division 1, Group D T4
    Class I, Division 2, Group D T4
    Ultrasonic transducers intrinsically safe

  • Digital Outputs

    2 DO and 1 FO:
    30 V, 10 mA
    Passive, galvanically isolated, open collector, fmax = 6 kHz (scalable)

  • Digital communication

    RTU RS-485 (2x, for configuration, data output and diagnostics)
    ASCII RS-485 (2x, for configuration, data output and diagnostics)