Derived Variables And Calculated Process Variables - Emerson Micro Motion 2700 Configuration And Use Manual

Matrix name Description
HFCS 42
Matrix represents a hydrometer scale
for HFCS 42 (high-fructose corn syrup)
solutions that indicates the percent by
mass of HFCS in solution.
HFCS 55 Matrix represents a hydrometer scale
for HFCS 55 (high-fructose corn syrup)
solutions that indicates the percent by
mass of HFCS in solution.
HFCS 90 Matrix represents a hydrometer scale
for HFCS 90 (high-fructose corn syrup)
solutions that indicates the percent by
mass of HFCS in solution.
4.8.4

Derived variables and calculated process variables

The concentration measurement application calculates a different set of process variables
from each derived variable. The process variables are then available for viewing or
reporting.
Derived
Variable Description
Density Mass/unit volume, cor-
at Reference
rected to a given refer-
ence temperature
Specific Gravity
The ratio of the density
of a process fluid at a
given temperature to
the density of water at
a given temperature.
The two given temper-
ature conditions do not
need to be the same.
Mass
The percent mass of
Concentration solute or of material in
(Density)
suspension in the total
solution, derived from
reference density
Configuration and Use Manual
Density unit
3
g/cm
3
g/cm
3
g/cm
Calculated process variables
Density at
reference Standard
tempera- volume Specific
ture flow rate gravity
✓ ✓
✓ ✓
✓ ✓
Configure process measurement
Temperature
unit Derived variable
°C Mass Concentration
(Density)
°C Mass Concentration
(Density)
°C Mass Concentration
(Density)
Concen- Net mass
tration flow rate
✓
✓ ✓
Net
volume
flow rate
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