515-GN12 – (SGERG) Analogue Flow, Natural Gas (AGA-8)

Natural Gas Flow Computer (SGERG) – Analogue Flow

The 515-GN12 application measures the volume, mass and gross heat content of natural gas by using analog volume flow, temperature and pressure inputs.

The Flowmeter input signal can be selected as either 0-5V, 1-5V or 4-20mA. Minimum and maximum points are programmed and non-linear correction points can be used to better reflect the flowmeters behaviour.

The SGERG calculation (AGA-8 Detail Characterization Method) is used to obtain accurate values of density and compressibility factors for the flow calculations.

Calculations

The gas density and compressibility factor calculations are based on the AGA-8 equations. The calculations are valid for the region:
• -8.0°C < t < 62.0°C P < 12MPa
• 17°F < t < 143.0°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

For more information on other products please click below.

Back to Product Index Back to Product Index Back to Product Index

Related Accessories

Software – Program Manager (Download)

Software – DataMod Tool

IP65 – Stainless Steel (Custom)

IP66 – Weatherproof Enclosure

PR-00 – Thermal Panel Printer

PR-01 – Roll Printer (Panel Mount Impact)

PR-02 – Desktop 24VDC or 240VAC

PR-03 – Desktop 240VAC 80 Col

PR-04 – Thermal Ticket Printer