
54
Micro Motion
®
Model 3711 Gas Flow Computers
Configuring Volumetric Flow Measurement
6.4.1
Advanced panel
The Advanced panel is shown in Figure 6-4. This panel is used to provide data for pressure
calculations. Parameters on this panel are listed and defined in Table 6-4.
Table 6-3
Gas Quality parameters
Parameter
Description
Comments
AGA8
Compressibility
Method
Specify the AGA8 equation of state that will be used to calculate
gas volume.
Gas Mole
Percentage
Enter values as required to describe the complete composition
of the gas mixture.
Used only if AGA8 Compressibility
Method is set to Detailed.
Log Methane
adjust
• Enabled: Methane adjustment is logged to the event log.
• Disabled: Methane adjustment is not logged to the event log.
Used only if AGA8 Compressibility
Method is set to Detailed.
Heating Value
Basis
Specify how the heating value of the gas is being measured:
• Dry: Gross dry
• Wet: Gross saturated
• As delivered: As measured by the gas analyzer
Used only if AGA8 Compressibility
Method is set to Detailed or
Gross 2.
Heating Value
Specify how the heating value will be determined:
• Calculate: Will be calculated by the Model 3711
• Enter: The configured value will be used. Specify the heating
value in the textbox provided.
Must match selected AGA8
Compressibility Method:
• Detailed: Specify Calculate or
Enter
• Gross 1 or Gross 2: Preset to
Enter and cannot be changed
Specific Gravity
Specify how the specific gravity will be determined:
• Calculate: Will be calculated by the Model 3711
• Enter: The configured value will be used. Specify the specific
gravity value in the textbox provided.
Must match selected AGA8
Compressibility Method:
• Detailed: Specify Calculate or
Enter
• Gross 1 or Gross 2: Preset to
Enter and cannot be changed
Force
Recalculation
• Set: To force a recalculation, click Set and Apply. Click Update
to view the results of the recalculation. The Clear button will be
enabled automatically after recalculation is complete.
• Clear: Indicates that no recalculation is in progress.
Used to comply with AGA8
recalculation requirements.
Log Gas Quality
Events
• Enabled: Changes to gas quality parameters are logged to the
event log.
• Disabled: Changes to gas quality parameters are not logged
to the event log.
For a typical application:
• Specify Enabled if gas quality is
configured manually.
• Specify Disabled if gas quality is
periodically downloaded to the
Model 3711 from a host or
external measurement device.
Содержание Micro Motion 3711
Страница 32: ...24 Micro Motion Model 3711 Gas Flow Computers ...
Страница 44: ...36 Micro Motion Model 3711 Gas Flow Computers ...
Страница 56: ...48 Micro Motion Model 3711 Gas Flow Computers ...
Страница 68: ...60 Micro Motion Model 3711 Gas Flow Computers ...
Страница 92: ...84 Micro Motion Model 3711 Gas Flow Computers ...
Страница 108: ...100 Micro Motion Model 3711 Gas Flow Computers ...
Страница 140: ...132 Micro Motion Model 3711 Gas Flow Computers ...
Страница 196: ...188 Micro Motion Model 3711 Gas Flow Computers ...
Страница 210: ...202 Micro Motion Model 3711 Gas Flow Computers ...
Страница 233: ......