Optical Scientific Inc
Appendix B
OFS 2000F/-
FW User’s Guide
P/N 1910-901-1
Rev. 03/28/13
70
15.3 Curve Fitting Data Entry
With the OFS operating properly and PC communication established (see previous sections) you can begin:
Send “X” (upper case) to OFS. The following message will display:
Up to six curve fitting points are available. These
are generally used only where customer’s critical
process control make them necessary. Three-
point curve fitting is considered adequate and
the most cost-effective.
At this point the User should enter “3”
Entering “0” will dump any existing entries and
return the user to the beginning.
Pressing “ESC” will halt the procedure.
When the number of points has been entered
you will be prompted to enter the Units of
Measure (UOM) you wish to use. In this
example we enter “3” for “Feet per Second”.
Once the UOM has been chosen, you will be
prompted to enter the three data sets in
ascending order: #1 Low, #2 Medium, and #3
High. The sets will consist of first: the OFS
velocity reading; second: the measured velocity
reading determined by the RATA team.
For this example we are going to assume the
OFS is reporting 2fps low as compared to the
cross-stack measurement.
The figures for this example will be:
1. OFS 11fps/RATA 12fps, 2. OFS 16fps/RATA 18fps, 3. OFS 22fps/RATA 24fps
You will be prompted to enter in the velocity
values in sequence one at a time. OFS velocity
reading followed by the RATA reading.
At the conclusion of the last entry, the OFS will
upload the information.
After a few moments the data string will display
as shown showing the successful upload.
(Characters after the “X”)
At his point you may press the “ESC” key and
terminate the procedure.