PT100 with NI6341 DAQ

[vincentlg]

Hello,

I have a NI PXIe-1071 with a NI6341 multifunction DAQ.

I wante to use it with 4 PT100 temperature sensor.

Will it be possible (hardware/software  point of view) ? If not, does it exist a card able to get the acquisition with the PXIe 1071 ? (I saw the NI9216 but it is wotking only with CRIO)

Thank you for your advices.

[Kevin_Price · Accepted solution]

The 6341 is not a good choice for RTD temperature measurements.  As I recall (it's been a while), you need a board with a precision current source.   One such board is the PXIe-4357.  It's admittedly a pricey option for 4 sensors, so you may want to look into smaller dedicated RTD conditioners that attach via USB or LAN or something.

-Kevin P

[Henrik_Volkers]

Just search for 'PT100 to 10V' converter,  they start at about 15$€ up to about 100, depending on the quality/housing/range...

Usually you use Pt100 to get accuracy...  so carefully look at the spec 🙂