9219 absolute error

[ChuckS]

So am I to believe that NI has a module to measure RTD's (that are very accurate) has a "typical" error of  +/- 4.37 °C.

Doesn't that sound excessive?

NI's thermocouple modules are typically +/- 1 °C, I would expect that the RTD stuff is far better ...

I hope you can recheck this for me ... if this is the case then I can not use this module.

If you look at absolute error ... 3.232 ohms + 0.1 ohm = +/- 11.106 degrees °C MAX error

can you please recheck this ... it doesnt sound right at all.

Regards

Chuck

[Logan_K]

Hi Chuck,

Based on our external documentation for the 9219 - what you are saying is correct. The 9217 is designed specifically for RTDs and is technically a more accurate solution for RTD measurements, however the 9219 is considerably more accurate than our documentation indicates. We were perhaps too conservative in our specs. Email me at logan.kunitz@ni.com because I would like to take this conversation off-line.

Regards,
Logan Kunitz

[ChuckS]

It is hard to compare the two. The specs are written completely different for the 9217.