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INVUE GV148 LIQUID CHEMICAL CONCENTRATION MONITOR
User Guide | Entegris, Inc.
7. To save the table, use the dropdown menu
and select “Save Conc. Table to File”.
8. Name the {*.csv} file and select “OK”.
TEMPERATURE COMPENSATION COEFFICIENT (TCC) TAB
The InVue GV148 monitor actively monitors and
compensates for changes in the refractive index due
to changes in fluid temperature by applying a linear
temperature compensation model determined by the
temperature compensation coefficient (TCC). There
are three methods to enter the system’s TCC into the
monitor. They can be entered manually, loaded from
a file, or generated by the HMI.
CAUTION: The TCC should represent the process
being measured from data at various points in the
expected temperature range. If it takes 24 – 48 hours
of continuous process time and/or multiple chemical
exchanges to realize the full temperature range, this
must be included in the TCC calculation for greatest
accuracy.
Entering the TCC Manually
If the
First Order Fit
or Second Order Fit of the process
fluid are known, enter the values on the TCC on the
Temperature Compensation page in the appropriate
fields.
1. Select the “Coefficients” tab.
2. Assign the coefficients to a chemistry number by
selecting a number and enter a brief description.
3. Enter the coefficient
Order Fits
in the appropriate
fields.
4. Press “Apply”.
