Emerson 3051S Spezifikationen Seite 69

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Reference Manual
00809-0100-4803, Rev DA
Section 3: Configuration
April 2013
Configuration
3.7 Variable configuration
3.7.1 Flow rate
(Fully Compensated Mass and Energy Flow Feature Board only):
The Flow tab is used to configure the settings associated with the Flow Variable. Fluid and
primary element information which defines the flow calculation is configured using Engineering
Assistant.
Figure 3-25. Variables - flow tab
1. Under the Flow Rate Setup heading, the type of flow calculation is indicated by the check
boxes next to either Mass Flow Calculation or Volumetric Flow Calculation. To edit the flow
calculation type, click on the Configure Flow Calculation Type button.
2. Edit the Flow Rate Units and Damping value as needed. The flow calculation within the
device uses undamped process variables. Flow rate damping is set independently of the
measured process variables.
Note
If the flow calculation type is changed, the totalizer will be stopped and reset automatically.
3. Under the Low Flow Cutoff heading, edit the current Minimum DP Value as needed. The
unit for this value is the user-selected DP unit. If the measured DP value is less than the
minimum DP value, the transmitter will calculate the Flow Rate value to be zero.
4. The Sensor Limits and Minimum Span can be viewed under the Flow Rate Sensor Limits
heading.
Mass and Energy Flow Fast Keys 1, 4, 1, 1
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