02-10-2022 02:30 AM
I have the PXI 4353 DAQ card and would like to record temperature using TC4353 and thermocouples. Does the measurement system measure the voltage differentially so that I can also attach the thermocouple to conductive, grounded materials. I can't read anything from the datasheet unfortunately.
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02-11-2022 08:08 AM
I looked a bit into it and found a nice link:
Connecting Thermocouple Signals to a DAQ Device - National Instruments (ni.com)
All NI thermocouple measurements are differential, so you should be able to ground it, just make sure to have a resistor in there.
Also, I am quite interested in knowing why you are looking to ground your thermocouple.
Hope this helps.
02-16-2022 08:36 AM
Hi, thanks for your answer. I checked it out and it works out for me, so i think it should be a differential measurement.