11
Reference Manual
00809-0100-4803, Rev GA
Configuration
September 2017
Configuration
Note
The following example will show a flow configuration for an application with database gas air as the
process fluid and a Rosemount 405C Conditioning Orifice Plate as the primary element. The procedure
to configure an application with other fluids and other primary elements will be similar to this example.
Natural gases, custom liquids, and custom gases require additional steps during the configuration. See
“Other fluid configurations” on page 18 for more information.
1. Engineering Assistant may open to the Preferences tab. Using the tabs at the top of the screen,
navigate to the Fluid Selection tab.
2. Expand the Gas category (select the + icon).
3. Expand the Database Gas category.
4. Select the appropriate fluid (Air for this example) from the list of database fluids.
Figure 2-7. Fluid Selection Tab - Database Gas Air
5. Enter the Nominal Operating Pressure, select the Enter or Tab key.
Note
The nominal operating pressure must be entered in absolute pressure units.
6. Enter the Nominal Operating Temperature, select the Enter or Tab key. Engineering Assistant will
automatically fill in suggested operating ranges, as shown in . These values may be edited as needed
by the user.
7. Verify the Reference Conditions are correct for the application. These values may be edited as needed.
Note
Reference pressure and temperature values are used by Engineering Assistant to convert the flow rate
from mass units to mass units expressed as standard or normal volumetric units.
8. Select Next > to proceed to the Fluid Properties tab.
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