Interfacing to RTD100 w/ limited range of interest

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi all,
I am still quite new to Arduino, have been lots of reading on RTD100 sensors, but cant find anything on limiting the range of interest to maximise my resolution.
The range of interest is about 88 C to 96C (about 190 F to 206 F)

From what Ive read, I need to be feeding the sensor with a regulated voltage, connect a resistor in parallel with the RTD and be reading the voltage across the resistor with an analogRead command and
but have no idea how to limit the range of interest.....

:-[

2

I assume it is just a matter of what voltage you feed it and what value of resistors you use. In the end it will boil down to be a voltage divider.

Could you post a link to the data sheet as the few things I have found on the net are not very informative.