Emerson Daniel 3410 Series Operation Manual page 75

Operations manual
DAN-20057316
Table 5-15: GC-read gas property invalid conditions
Indication Data Point
IsGCDataErr
GC alarm handling
The following data points are included in the meter's alarm log (See
audit): AreGasPropertiesInvalidGC, IsGCAlarmPresent, IsGCCommErr, GCCommStatus,
and IsGCDataErr.
5.8.2 Configure AGA8 parameters
Configure the properties necessary for the AGA8 calculations.
How the AGA8 calculations to be performed:
• Internally by the meter - calculates the flow mass density, the flow compressibility and
the base compressibility.
• Externally - calculations are done externally. The calculated values must then be written
to the meter using Daniel MeterLink
AGA8 method
• Gross Method 1
• Gross Method 2
• Detail - enter the amount of each of the 21 gas components as a percentage.
• GERG-2008
Gas composition
• Fixed - use the fixed gas composition stored in the meter for all calculations.
• Live GC - use a gas composition collected by the meter from a gas chromatograph for
all calculations. This option is only available with a GC key or is enabled with the
Continuous Flow Analysis key.
• Configure the Gas properties for the gas chromatograph
• Base temperature
• Base pressure
• Gas composition to use on GC alarm
• Specific gravity
• Specific gravity reference temperature
Model 3418 GUSM
Condition
The total unnormalized gas composition mole percentage is not within
[85%, 115%].
An individual gas composition mole percentage is not within [0%, 100%].
The specific gravity is not within [0.2, 0.8].
The heating value is greater than 50 kJ/dm
™
or a flow computer.
Configurations
(continued)
3
.
Event log: alarm/
January 2019
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