Emerson Series 3000 MVD Manuel D’Utilisation
Configuration and Use Manual
77
Configuring the Petroleum Measurement Application
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9.4.1
Reference tables
Reference tables are organized by reference temperature, CTL derivation method, liquid type, and
density unit. The table selected here controls all the remaining options.
density unit. The table selected here controls all the remaining options.
•
Reference temperature:
-
If you specify a 5x, 6x, 23x, or 24x table, the default reference temperature is 60
°F, and
cannot be changed.
-
If you specify a 53x or 54x table, the default reference temperature is 15 °C. However, you
can change the reference temperature, as recommended in some locations (for example, to
14.0 or 14.5 °C).
can change the reference temperature, as recommended in some locations (for example, to
14.0 or 14.5 °C).
•
CTL derivation method:
-
If you specify an odd-numbered table (5, 23, or 53), CTL will be derived using Method 1
(described in Section 9.3.2).
(described in Section 9.3.2).
-
If you specify an even-numbered table (6, 24, or 54), CTL will be derived using Method 2
(described in Section 9.3.2).
(described in Section 9.3.2).
•
The letters A, B, C, or D that are used to terminate table names define the type of liquid that the
table is designed for:
table is designed for:
-
A tables are used with generalized crude and JP4 applications.
-
B tables are used with generalized products.
-
C tables are used with liquids with a constant base density or known thermal expansion
coefficient.
coefficient.
-
D tables are used with lubricating oils.
•
Different tables use different density units:
-
Degrees API
-
Relative density (SG)
-
Base density (kg/m
3
)
Table 9-2 summarizes these options.
Table 9-2
API reference temperature tables
Table
CTL
derivation
method
derivation
method
Base temperature
Density unit and range
Degrees API
Base density
Relative density
5A
Method 1
60 °F, non-configurable
0 to 100
5B
Method 1
60 °F, non-configurable
0 to 85
5D
Method 1
60 °F, non-configurable
–10 to +40
23A
Method 1
60 °F, non-configurable
0.6110 to 1.0760
23B
Method 1
60 °F, non-configurable
0.6535 to 1.0760
23D
Method 1
60 °F, non-configurable
0.8520 to 1.1640
53A
Method 1
15 °C, configurable
610 to 1075 kg/m
3
53B
Method 1
15 °C, configurable
653 to 1075 kg/m
3
53D
Method 1
15 °C, configurable
825 to 1164 kg/m
3
Reference temperature
Supports
6C
Method 2
60 °F, non-configurable
60 °F
Degrees API
24C
Method 2
60 °F, non-configurable
60 °F
Relative density
54C
Method 2
15 °C, configurable
15 °C
Base density in kg/m
3