Emerson Daniel 3410 Series Operation Manual page 48

Configurations
January 2019
Table 5-4: Data points for Polynomial wet calibration
Daniel Meterlink
Display Name
Reverse C0
Reverse C1
Reverse C2
Reverse C3
Procedure
1. Select Polynomial from the Calibration > Meter Factors menu.
2. Add the value for the forward and reverse coefficients.
3. Click Write to apply the parameters to the meter.
No wet calibration
If no wet calibration is selected, then the wet calibration gas flow velocity is equal to the
dry calibration gas flow velocity.
Triggered delta volumes
The "triggered delta volume" feature provides the ability to measure total gas flow volume
(flow- and base-condition) between two successive external event triggers.
To trigger an event, set the DoUpdtTrigDeltaVols data point to TRUE. This causes the
meter to save the current accumulated flow- and base-condition volume values (forward
and reverse). The meter then calculates the difference between these values and the
corresponding values saved from the previous event trigger. Finally the meter writes the
delta volume values to the appropriate data points (TrigDeltaPosVolFlow,
TrigDeltaNegVolFlow, TrigDeltaPosVolBase, and TrigDeltaNegVolBase) and sets the
DoUpdtTrigDeltaVols data point to FALSE to clear the trigger and indicate the calculation
completion.
48
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Data points, options and guidelines
Data points affected
• RevC
0 Options:
Enter a value (m/s or ft/s) within the range [-1, 1 m/s].
•
Data points affected
• RevC
1 Options:
• Enter a value (dimensionless) within the range [0.95, 1.05].
Data points affected
• RevC
2 Options:
• Enter a value (m/s or ft/s) within the range [-0.1, 0.1 s/m].
Data points affected
• RevC
0 Options:
• Enter a value (s
(continued)
2 2 2 2
/m or s /ft ) within the range [-0.1, 0.1 s
Operations manual
DAN-20057316
2 2
/m ].
Operations manual