how number of channels in usage can affect the accuracy of readings

[Gulya]

I am using DAQCard-AI-16XE-50. As long as I am using 7 differential channels out of 8, I have very accurate readings. Now we connected something else to the 8th channel and after that we receive inaccurate reading. I reduced the number of readings per time and their averaging as well, but still can not obtain stable accurate data. Also inaccuracy I have only for one type of sensores, the other type still can be read properly.

Thanks,

Gulya

[Christian Mergl]

For me it sounds like its not related to the channel count.

Try to add BIAS Resistors to the senser where you get inaccurate measurements.

You will find more information on BIAS resistors under the DAQmx help.

Hope this helps,

Christian