Do these formulas look correct for taking the MAP Volts and converting them to kPa? These formulas are from the last couple of pages from the Datamaster Manual.

1 Bar Map
kPa = (0.369 * N) + 10.354

2 Bar Map
kPa = (.0781 * N) + 8 (gives worst case error at Room Temp of +1.27 kPa)

3 Bar Map
kPa = (1.23 * N) + 2.2 (Max error of -.85 kPa)

There are also some data tables in the manual showing your the results using these formulas and what was actually measured.

Manual
http://www.ttspowersystems.com/softw...cs/dm32man.pdf

Thanks

 

Are these correct? I mean could I use them to edit my xdf and ads file for a code mask made for a 1 BAR Map sensor?

 

I don't know first hand, but given that N is an A/D converter number from 0 to 255 representing 0 to 5V they'd seem sensible, exept that the .0781 multiplicator in the 2 Bar formula need to be 0.781 to make sense. If the 1 Bar formula & numbers here is similar to the one you want to modify then the 2 & 3 bar multiplicators here being approx 2 & 3 times as high as the 1 Bar should at least bring you in the ballpark.