Flow-X─ Function Reference
4-103
Flow-X General functions - fxAPI_MPMS_11_2_1M
Function outputs
Name
Remark
EU
SW
tag
Alarm
Fallback
Status
0: Normal
1: Input argument out of range
2: Calculation error
STS
FIOOR
CALC
1
CPL
Volume correction factor for pressure
Note: to achieve compliance with API
MPMS 12.2 the CPL value needs to be
rounded to 4 decimal places.
-
CPL
1
F
Compressibility factor
The output value will be either
rounded or not depending input 'API
11.2.1M rounding '
1/bar
F
0
Calculation out
of range
With respect to the standard the input
values are:
0: In Range
1: Out of Range
-
OOR
0
Calculations
The calculations are in either full or partial compliance with the standards, depending on whether API
rounding is enabled or not and on the actual number of decimal places for the CPL value (API MPMS
12.2 defines 4 decimal places for the CPL value).
The CPL value is calculated as follows (in compliance with API MPMS 12.2):
If Pe > 0 then
)
(
1
1
Pe
Po
F
CPL
Else
Po
F
CPL
1
1
With:
CPL
Volume correction factor for pressure
-
F
Compressibility factor
1/bar
Po
Observed pressure
bar(g)
Pe
Equilibrium pressure
bar(g)
Summary of Contents for flow-x
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