E.2 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
Calculated process variables
Density at
reference
temp
Standard
volume
flow rate
Specific
gravity
Concentra
tion
Net mass
flow rate
Net
volume
flow rate
Density
at Reference
Mass/unit volume,
corrected to a given
reference 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
temperature conditions
do not need to be the
same.
Note
The two given
temperature conditions
do not need to be the
same.
✓
✓ ✓
Mass
Concentration
(Density)
The percent mass of
solute or of material in
suspension in the total
solution, derived from
reference density
✓ ✓ ✓ ✓
Mass
Concentration
(Specific Gravity)
The percent mass of
solute or of material in
suspension in the total
solution, derived from
specific gravity
✓ ✓ ✓ ✓ ✓
Volume
Concentration
(Density)
The percent volume of
solute or of material in
suspension in the total
solution, derived from
reference density
✓ ✓ ✓ ✓
Volume
Concentration
(Specific Gravity)
The percent volume of
solute or of material in
suspension in the total
solution, derived from
specific gravity
✓ ✓ ✓ ✓ ✓
Concentration measurement matrices, derived variables, and process variables Configuration and Use
Manual
March 2019 MMI-20025166
342 Micro Motion Model 5700 Transmitters with Configurable Outputs
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