what kind of Signal Conditioning for RTD PT 100 3 wire, to connect in module NI 9205

[paul_us]

 i have module ni 9205, and then i want to connect wit RTD PT 100 3 wire,and i need measure temperature in range 6 to 13 degree celcius, can you recomended to me. What kind of Signal conditioning for RTD PT100 3 wire  with hight accuracy ?
Thank a lot

[JayJayHella]

Hi paul_us,

Unfortunately, the 9205 module does not have integrated signal conditioning for RTDs. However, as you can see starting on page 4 on the link below, a low-pass filter and amplification are usually needed when taking RTD measurements. You could implement this circuitry yourself. 

The Engineer’s Guide to Signal Conditioning

https://www.ni.com/en/forms/engineers-guide-signal-conditioning.html

If you are looking to purchase a module to do the signal conditioning, the links below may have options that could work for you. 

Taking Temperature Measurements with RTDs: How-To Guide

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA03q000000x1rnCAA&l=en-US