R36US0002EU0100 Rev 1.00
Page 10
Aug 26, 2021
RTD120D-EVK Evaluation Kit Software Manual
3. Confirm that the displayed page appears similar to the following screen-shot, and monitoring of the kit's data
immediately begins. Watch as the three graphs accumulate and show data arriving from the right side of each
plot as time proceeds. The calibration application is now running (calibrate.ctl) for four-point or three-point
calibration.
4. The plot on the top-left passively shows the current calibration points visually: raw value versus concentration
in ppm. Pressing the green “refresh r132” button refreshes this image at any time during the calibration
process.
If you do 3-point calibration instead of 4-point, the right-most point will show a value of -1, which is OK. It will
be ignored in that case, and the extrapolated values over 1000ppm will be co-linear with the middle segment
instead of bending upward in the piecewise linear graph.
5. The plot labeled “Raw” will show how the raw value changes over time.
