PB with DC Voltage acquisition LV 8.5 + DAQ PCI 6221

[leo2b]

Hello,

I have a problem when I do an acquisition of my DC voltage, sometimes the tension indicate by labview increase at 10V (default I think), where as my DC voltage have not change (I verfiy with a multimeter).

I don't know why.

I put my VI  here if you want to see my parameters of the DAQ express...

Bye.

[R_Duval]

Hi.

Could you check with Measurement & Automation Explorer if you have the same issue?

Thanks in advance for your feedback.

Regards,

[leo2b]

Yes I have the same problem...

I have change my input but it's the same thing, sometimes, I don't know why, the voltage is 10V and after few seconds it become normal...

I have change my parameters now I choose RSE mode and not differential mode, it's ok now with other mode.

Regards.