Re: PIC based Pt100 RTD temp sensor circuit

I'll have to digest some of this to understand it fully, but one thing
which I'm not too sure how to do is the two point calibration.

IIRC the MAX197 app notes suggest calibrating with a highly accurate
100R and 300R resistors. Say I do this and note the voltage or binary
value from the ADC, what do I then do with these two values? I see how
I can apply a correction factor, but this doesn't take both calibration
points in to consideration.

Cheers,
Mark

.

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