RTD data acquisition

Hi, 

Our lab need to conduct really accurate measurements of temperature differences (between 1 and 2 °C)

We have installed RTD sensors in 1/10 din class (accuracy lower than 0.08 °C  at our temperature conditions, between 0°c and 100°C)

At the moment we are acquiring the data through a National Instruments cFP-RTD-124 module mounted on a cFP-1804 interface. This gives typical errors of +-0.15 °C which becomes the main source of error. Hence, we would need a DAQ system which is accurate at least as much as the RTD.

Do you have anything like that?

Thank you

Best regard

Federico