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Flow-X─ Function Reference
Flow-X General functions - fxAPI_MPMS_11_2_2M
fxAPI_MPMS_11_2_2M
The API MPMS 11.2.2M standard consists of a printed table that contains compressibility factors to
correct hydrocarbon volumes under pressure to the corresponding volumes at the equilibrium pressure
for the metered temperature.
The table contains compressibility factors related to meter temperature and the density at 15°C.
This metric standard corresponds with API MPMS 11.2.2 (the U.S. customary version)
Compliance
11.2.2M - Compressibility Factors for Hydrocarbons: 350 - 637 Kilograms per Cubic Meter
Density (15°C) and -46°C to 60 °C Metering Temperature - First Edition, October 1986
Boundaries
API MPMS 11.2.2M defines the following limits on the input values:
350 to 637 kg/m3
-46 to 60 °C
0 to 152 bar(g)
Also the check on the pseudo-critical temperature as defined for fxAPI_MPMS_11_2_2 is applied.
Function inputs
Remark
EU
SW tag
Range
Default
Name
Optional tag name, tag
description and tag group
Density at 15°C
kg/m3
0..750
0
Observed
Temperature
°C
-
100..150
60
Observed Pressure
bar(g)
-1..200
0
Equilibrium
Pressure
The equilibrium pressure is
considered to be 0 psig for
liquids which have an
equilibrium pressure less than
atmospheric pressure (in
compliance with API MPMS
12.2 par. 12.2.5.4)
bar(g)
EQUIPRE
S
0..200
0
API 11.2.2M
rounding
0: Disabled
The calculation of the
compressibility factor F
and CPL is performed
with full precision.
1: Enabled
API-MPMS 11.2.2M
rounding and truncating
rules are applied.
The compressibility
factor F is rounded in
accordance with the
standard.
APIROU
ND
-
0
Function outputs
Remark
EU
SW
tag
Alarm
Fallback
Status
0: Normal
1: Input argument out of range
2: Calculation error
STS
FIOOR
CALCERR
1
CPL
Volume correction factor for
pressure
Value will be rounded according
-
CPL
1
Summary of Contents for flow-x
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