Emerson Process Management Model 2700 Pacemaker User Manual


 
60 Model 2700 Transmitter with PROFIBUS-PA
Configuration
HFCS 42 Curve represents a hydrometer scale for HFCS 42
(high fructose corn syrup) solutions that indicates
the percent by mass of HFCS in solution.
g/cm
3
°C
HFCS 55 Curve represents a hydrometer scale for HFCS 55
(high fructose corn syrup) solutions that indicates
the percent by mass of HFCS in solution.
g/cm
3
°C
HFCS 90 Curve represents a hydrometer scale for HFCS 90
(high fructose corn syrup) solutions that indicates
the percent by mass of HFCS in solution.
g/cm
3
°C
Table 4-11 Derived variables and available process variables
Available process variables
Derived variable – ProLink II label
and definition
Density at
reference
temperature
Standard
volume
flow rate
Specific
gravity
Concentration Net
mass
flow rate
Net
volume
flow rate
Density @ Ref
Density at reference temperature
Mass/unit volume, corrected to a given
reference temperature
✓✓
SG
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.
✓✓
Mass Conc (Dens)
Mass concentration derived from reference
density
The percent mass of solute or of material
in suspension in the total solution, derived
from reference density
✓✓
Mass Conc (SG)
Mass concentration derived from specific
gravity
The percent mass of solute or of material
in suspension in the total solution, derived
from specific gravity
✓✓
Volume Conc (Dens)
Volume concentration derived from
reference density
The percent volume of solute or of material
in suspension in the total solution, derived
from reference density
✓✓
Table 4-10 Standard curves and associated measurement units (continued)
Name Description Density unit Temperature unit