Contrec 515-GN01 Frequency Input Natural Gas Flow Computer

Contrec 515 Series with GN01 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 AGA-8 Detail Characterization Method is used to obtain accurate values of density and compressibility factors for the flow calculations.

  • AGA-8 Natural Gas Detail Characterisation Method calculations for gas compositions with up to 21 components
  • Gross heating values calculated to ISO 6976:1995 and GPA Standard 2172-96
  • Allows for 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 the 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

Datasheet: Contrec 515 – GN01 Datasheet
Instruction Manual: Contrec 515 – GN01 Instruction Manual

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