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product picture of the ultrasonic flowmeter FLOWSIC600-XT

FLOWSIC600-XT
ultrasonic flowmeter

Custody transfer natural gas measurement with intelligent diagnostic functions

IFL6XT
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  • Measuring principle

    Ultrasonic transit time difference measurement

  • Measured variables

    Volumetric flow a. c., volume a. c., gas velocity, Speed of sound, optional volume correction via integrated, electronic volume corrector (EVC)

  • Measuring Medium

    Natural gas (with up to 30% hydrogen), air, natural gases containing increased levels of CO2, N2, H2S, O2, H2

  • Repeatability

    ≤ 0.05 % of the measured value (typical)

  • Accuracy

    4-path and 8-path version ≤ ± 0.5 % | (≤ ± 1%) Dry-calibrated
     
    4-path and 8-path version ≤ ± 0.2 % | (≤ ± 0.5%) After flow calibration and alignment using constant factor. Without the calibration uncertainty of the test bench.
     
    4-path and 8-path version ≤ ± 0.1 % | (≤ ± 0.2%) After flow calibration and alignment using polynomial or piecewise correction. Without the calibration uncertainty of the test bench.

  • Medium temperature range

    –46 °C ... +180 °C / -51 °F ... +356 °F
    On request:–194 °C ... +280 °C / –381 °F ... +536 °F

  • Operating pressure range

    0 bar (g) ... 450 bar (g) 0 psi (g) ... 6527 psi (g)

  • Nominal pipe size

    3 ″ ... 56 ″
    (DN 80 ... DN 1400), other nominal pipe sizes on request

  • Metrological approvals and certificates

    OIML R 137-1&2:2012 (class 0.5)
    OIML D 11:2013
    ISO 17089-1
    AGA-Report Nr. 9
    MID: 2014/32/EU
    PED: 2014/68/EU
    ASME: B16.5, B16.47 A/B
    ATEX: 2014/34/EU
    EMC: 2014/30/EU
    GOST 8.611-2013
    GOST 8.733-2011
    CPA: JJG1030-2007
    PCEC: GB 3836.1-2010, GB 3836.2-2010, GB 3836.4-2010, GB/T 3836.22-2017

  • Hazardous area approvals

    IECEx
    Ex db ia op is [ia Ga] IIA/IIC T4 Gb 
    Ex db eb ia op is [ia Ga] IIA/IIC T4 Gb
    Ex ia op is IIA/IIC T4 Ga
     
    ATEX
    II 2 (1) G Ex db ia op is [ia Ga] IIA/IIC T4 Gb
    II 2 (1) G Ex db eb ia op is [ia Ga] IIA/IIC T4 Gb
    II 1G Ex ia op is IIA/IIC T4 Ga
    NEC/CEC (US/CA)
    Explosion-proof / non-incendive:
    CI I, Div. 1 Group D, T4 / Ex d ia [ia Ga] IIA T4 Gb / Cl I, Zone 1 AEx d ia op is [ia Ga] IIA T4 Gb
    CI I, Div. 1 Groups B, C, D, T4 / Ex d ia [ia Ga] IIC T4 Gb / Cl I, Zone 1 AEx d ia op is [ia Ga] IICT4 Gb
    Intrinsically safe:
    CI I, Div. 1 Group D T4 / Ex ia IIA T4 Ga / Cl I, Zone 0, AEx ia op is IIA T4 Ga
    CI I, Div. 1 Groups A, B, C, D, T4 / Ex ia IIC T4 Ga / Cl I, Zone 0, AEx ia op is IIC T4 Ga

  • Digital Outputs

    4 outputs: 2 x status, 2 x pulse:
    ≤ 30 V, 50 mA
    Passive, electrically isolated, open collector or conforming to NAMUR (DIN EN 60947-5-6), fmax = 10 kHz(scalable)

  • Digital communication

    Modbus TCP