Thank you for your answer. Follow up questions:
So I just add one waveform chart for pressure and one for temperature in my VI? Are the values automatically plotted against the sampling rate, as in 1 point for each second with the current setup? If the process I am monitoring takes two days, will the waveform chart be able to handle all those datapoints - and display temperature variations from start (0 seconds) to end (172.000 seconds later)?
You mention I should run my Fit VIs one time before the loop starts - I see your point, but how do I do this in Labview?