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Flow-X─ Function Reference
4-61
Flow-X General functions - fxAGA3_C
Density
Location This parameter specifies if and how
the density should be corrected
from downstream to upstream
conditions.
1: Upstream tapping
Input 'Density' represents the
density at the upstream
pressure tapping (

1
).
2: Downstream tapping
Input 'Density' represents the
density at the downstream
tapping (

2
).
3: Recovered pressure
Input 'Density' represents the
density downstream at a
location Where the pressure
has fully recovered (

3
).
- DENSL
OC 0
Density
Exponent. This factor is used when density
correction is enabled. The formula
1/

will be used when the input
value is set to 0, else the input
value will be used.
For more details refer to section
function 'ISO5167- Orifice' 'Density
correction'.
- DENSE
XP 0
Fluid The type of fluid being measured
1: Gas
2: Liquid
For liquid the expansion factor is
set to 1, i.e. the fluid is considered
to be incompressible. - FLUID 0
Drain hole When input is > 0 then an
additional correction on the orifice
diameter will be applied to account
for the drain hole, as explained
further on. in DRAIN 0.. 100 0
Fpwl Local Gravitational Correction
Factor for Deadweight Calibrators
used to calibrate differential and
static pressure Instruments.
Directly applied on the calculated
mass flow rate within each
iteration. - FPWL 0.9..1.1 1
Function
outputs
Remark EU SW tag Alarm Fallback
Status 0: Normal
1: Input argument out of
range
2: Calculation error
3: No convergence STS
FIOOR
CALCERR
NOVONV
Mass flow rate The calculated mass flow
rate klbm/h
r MASSR 0
Beta ratio Orifice to pipe diameter ratio
at upstream temperature - BETA 0
Orifice At the upstream inches ORIFUP 0