Depending on the system setup, a RealFLO-enabled SCADAPack controller can provide one of several industry standard gas flow calculations:
- AGA-3 (1985)—Gas volume calculated using a pre-1992 orifice meter
- AGA-3 (1992)—Gas volume calculated using an orifice meter
- AGA-7—Gas volume calculated using a turbine meter
- V-Cone—Gas volume calculated using a V-Cone gas flow meter.
The type of calculation that a Gas Flow Run performs is read into ClearSCADA when the server establishes communications with the controller on which the Flow Run is located. You can also specify the calculation Type manually, if required. For instance, if a Flow Run’s data is to be used on report(s), and you want to configure those reports to include the relevant data fields, before ClearSCADA establishes communications with the controller on which the Flow Run is located.
The Type field at the top of the Flow Calculation tab indicates the type of flow calculation that a flow run performs.
The type of calculation that a Gas Flow Run performs, determines the fields that are displayed on the rest of the tab.
If the Flow Calculation Type is AGA-3, the tab displays fields that show:
- AGA-3 or V-Cone Differential Pressure Properties
- AGA-3 General Properties
- AGA-3 Deadband Properties
- AGA-3 (1992) Properties.
If the Flow Calculation Type is AGA-7, the tab displays fields that show:
If the Flow Calculation Type is V-Cone, the tab displays fields that show:
- AGA-3 or V-Cone Differential Pressure Properties
- V-Cone General Properties
- V-Cone Flow Coefficient Properties.
Further Information
For more detailed information on these properties, see the documentation provided with the RealFLO application.