Last Updated: 23/02/2020
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Contrec 515 – GN14 Natural Gas Flow Computer

Part Number: 515 – GN14 Categories: ,
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    The 515 GN14 application measures the volume, mass and gross heat content of natural gas. The instrument uses single or stacked differential pressure meters such as orifice plates, nozzles, venturi tubes or V-Cones as well as temperature and pressure sensor inputs.

    The instrument calculates the flow according to differential pressure equations for the ISO 5167 or V-Cone meters. The flow calculations incorporate the conditions at which the flowmeter was calibrated and accurately account for thermal expansion effects.

    The SGERG calculation (AGA-8 Gross Detail Characterization Method) is used to obtain accurate values of density and compressibility factors for the flow calculations. For other gas properties such as viscosity and isentropic expotent, user entered values are used.

    CALCULATIONS

    The gas density and compressibility factor calculations are based on theSGERG( AGA-8 Gross) equations. The calculations are valid for the region:

    -8.0°C < t < 62°C P < 12MPa

    17°F < t < 143°F P < 1740psia

    FORMULAS

    Mflow = volume flow• ρflow

    corrected flow = Mflow/ρ ref

    Heat flow = Mflow•Hm

    Where:

    Mflow = mass flow

    ρflow = density at flow conditions

    ρ ref = density at reference conditions

    Hm = mass gross heating value

    Product Highlights

    • Tailored for differential pressure meters with single or stacked transmitters
    • Uses SGERG (AGA-8 Gross Method) Natural Gas compressibility calculation
    • For Natural and Coke-Oven Gases
    • ISO 5167 (2003) DP flow calculations, 2 cone types
    • Allows for non-linear correction
    • Selection of second language and user tags
    • RTC logging with over 1000 entries
    • Infra-red communications port on front panel
    • Pulse width and scaling of pulse output
    • 4-20mA retransmission
    • Pulse width and scaling of pulse output
    • Front panel adjustment of 8-24V DC output voltage
    • Selectable protocols on serial ports including Modbus RTU and printer output
    • Backlit display
    • LCD backup

    Datasheet: Contrec 515 – GN14 Datasheet

    Instruction Manual: Contrec 515 – GN14 Instruction Manual

    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm

    Setup, Configuration and Technical Support of our Products are FREE.

    We help to check your faulty Instruments too, fill in the form here

    Free phone and email tech support continues as long as you own the product. Click here for contact information.

    close-link
    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm or Email [email protected]

    FREE Domestic AND SEA Shipping!

    Most orders RM500/USD120 or more ship SEA for FREE!

    • Delivery within the Southeast Asia only.
    • Hazardous items excluded.
    • Extremely heavy or bulky items excluded.
    • Distributors, Resellers and OEMs excluded.
    • Contact us for shipping charge for orders < RM500/USD120
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