Fisher-Rosemount 3095FT, Руководство пользователя

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Rosemount Model 3095FT HART Flow Transmitter
4-20
Configuration
Flow
Gas Properties (Detail)
The displayed gas properties screen is determined by the calculation
method selected in the Flow Parameters screen. If “AGA8 Detail” is
selected, then the AGA 8 (1992) Full Composition Analysis screen is
displayed (Figure 4-8a). This method allows entry of up to 21 different
gas composition mole percentages. Listed below is the variable name for
each abbreviation. Table 4-1 on Page 4-16 identifies the valid range for
each variable.
N2 Nitrogen iC5 i-Pentane
CO2 Carbon Dioxide nC5 n-Pentane
H2s Hydrogen Sulfide C6 Hexane
H20 Water C7 Heptane
He Helium C8 Octane
C1 Methane C9 Nonane
C2 Ethane C10 Decane
C3 Propane O2 Oxygen
iC4 i-Butane CO Carbon Monoxide
nC4 n-Butane H2 Hydrogen
Argon Argon
When entering numbers into the detail gas properties screen, the Total
Mole % field indicates the sum of all percentages entered. The Total
Mole % field must add up to 100.0000 percent for the User Interface to
accept the new values.
To zero all 21 fields, select clear. The normalize button provides a
method to automatically modify all non-zero values so that they add up
to 100.0000.
After the mole percentages are entered, select Ok to display the AGA 8
Gas Properties screen (Figure 4-8).
30
95
-30
950
03
8
FIGURE 4-8a. Full Composition
Analysis Screen (AGA8-Detail).