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PB with DC Voltage acquisition LV 8.5 + DAQ PCI 6221

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.

 

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Hi.

  

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

 

Thanks in advance for your feedback.

Regards,

Romain D.
National Instruments France

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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.

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