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Ideal Gas Computer – DP Meter (ISO/Cone)
The 515-GC04 application measures the volume, corrected volume and mass of a general gas. The instrument uses single of 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 the 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 properties of a gas are calculated using common industry standard equations of state. These equations use a simplified set of parameters to quickly and accurately determine the value of compressibility and actual quantity of gas.
Calculations
A variety of calculations are available to suit the nature of the gas and the measurement conditions. The calculations are valid for the vapour phase of gas.
Equations of state:
• Ideal Gas
• Redlich-Kwong
• Soave-Redlich-Kwong
• Peng-Robinson
Features
Tailored for differential pressure meters with single or stacked transmitters
Calculations based on a variety of General Gas equations
ISO 5167 (2003) DP flow calculations, 9 meter types
V-Cone 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
Selectable protocols on serial ports including Modbus RTU and printer output
Front panel adjustment of 8-24V DC output voltage
Backlit Display
LCD Backup Typical plant diagram
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