Thermocouple Reading Changes when using Different Computer

[NPrice]

I have a test setup that includes some voltage AIs and a single thermocouple (type K) input coming in on the same SCB-68 block. Originally I had a computer running my LabVIEW code and using a PCI-6036E card to capture the data (LV7, DAQmx being used). I had to swap in a different computer that uses a PCI-6024E card instead. Now the thermocouple reading is always 6 degrees above actual temperature it should be reading. Is there any (semi-)logical explanation as to why this is happening?

Thanks,
Neil

[Photon_Dan]

You gave up 4 bits of precision when you moved from the 16-bit 6036 to the 12-bit 6024. The problem is most likely compounded by an inappropriate gain setting on your thermocouple channel(s).

A DAQ expert Alliance Member like us could be very helpful to you! We do this stuff every day.

Daniel L. Press
PrimeTest Corp.
www.primetest.com

[Photon_Dan]

You gave up 4 bits of precision when you moved from the 16-bit 6036 to the 12-bit 6024. The problem is most likely compounded by an inappropriate gain setting on your thermocouple channel(s).

A DAQ expert Alliance Member like us could be very helpful to you! We do this stuff every day.

Daniel L. Press
PrimeTest Corp.
www.primetest.com

[NPrice]

Oops, sorry my mistake. I changed to an NI6034E not NI6024E... I mistyped it in the original question I'm sorry. As far as I can tell I have everything set up identically (channels, setup etc.) *except* the fact it's a 6034 card in a different computer.

Thanks for the response,
Neil