Procedure
1. Expand the GAS category.
2. Select the Ideal Gas option.
3. Enter the Nominal Operating Pressure and Temperature Ranges. Engineering
Assistant will use these ranges to identify the pressure and temperature values at
which the fluid properties are required.
For the ideal gas being used the nominal density, specific gravity, or molecular
weight must now be entered using the drop-down menu. Once these are entered
the other data entry fields, compressibility and viscosity, are enabled as shown on
Figure 2-14.
Figure 2-14: Fluid Selection Ideal Gas
4. Adjust the compressibility and viscosity to fit the ideal gas of the process.
5. Select Next to proceed to the Fluid Properties tab.
Note
The Fluid Properties tab is an optional step and is not required to complete a flow
configuration. The Fluid Properties tab for the database gas air is shown in Figure
2-15. The user may view the properties of the chosen fluid. The fluid properties are
initially shown at nominal conditions. To view density, compressibility, and viscosity
of the selected fluid at other pressure and temperature values, enter a Pressure and
Temperature and select Calculate. Changing the pressure and temperature values
on the Fluid Properties tab does not affect the flow configuration.
Configuration Reference Manual
October 2018 00809-0100-4803
28 Rosemount 3051S Multivariable Transmitter
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