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515 Natural Gas (SGERG / AGA-8 Gross) Flow Computer

515 Natural Gas (SGERG / AGA-8 Gross) Flow Computer

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The 515 515 housed in a cabinetGN11 application measures the volume, mass and gross heat content of natural gas. The instrument uses a frequency volume flow input and analog temperature and pressure sensor inputs.

The instrument is compatible with a wide range of flowmeter frequency outputs. Millivolt signals, reed switches, Namur proximity switches or pulse trains can be selected via its smart front-panel programming.

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


  • Uses SGERG (AGA-8 Gross Method) Natural Gas compressibility calculations
  • For Natural and Coke-Oven Gases
  • Allows quadrature flow input for ISO 6551 level B pulse security
  • 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
  • Selectable protocols on serial ports including Modbus RTU and Printer output
  • Front panel adjustment of 8-24V DC output voltage
  • Backlit display
  • LCD backup

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