3-7
Operation
Process Density
Process Density and Density Units are required only if you have
designated mass units for your flow rate units. You will first be
prompted for density units. It is required for the conversion from
volumetric units to mass units. If you select volumetric units or special
units, process density is not required.
For example, if you have set flow units to kg/sec rather than gal/sec, a
density is required to convert the measured volumetric flow into the
desired mass flow.
NOTE
If mass units are configured as special units, process density must be
figured into the special units conversion number. Process density as
a separate value will be de-activated.
If mass units are chosen, you must enter the density of your process
fluid into the software. Be careful to enter the correct density. The mass
flow rate is calculated using this user-entered density, and any error in
this number will cause error in the mass flow measurement. If fluid
density is changing over time, it is recommended that volumetric flow
units be used.
STD/Normal Flow Units
Standard/Normal Flow Units
SCFM
SCFH
NCMM
NCMH
NCMD
The model 8800C allows you to measure Standard or Normal Flow
Units. Configure the software in one of two ways:
1. Enter Density Ratio to convert from actual flow rate to standard
flow rate.
2. Enter the process and base conditions. (The Model 8800C
electronics will then calculate the density ratio for you).
NOTE
Be careful to calculate and enter the correct conversion factor. Standard
flow is calculated with the conversion factor you enter. Any error in the
factor entered will result in an error in the standard flow
measurement. If pressure and temperature changes over time, use
actual volumetric flow units. The Model 8800C does not compensate for
changing temperature and pressure.
HART Comm. 1, 3, 3, 2, 2
HART Comm. 1, 3, 3, 3, 1
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