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Measured Voltage drops to zero for a few seconds periodically

What was true in 2014 is true today -- we cannot tell if there is anything "wrong" or "misguided" in your LabVIEW code unless you attach your LabVIEW code (no pictures, please!) so we can (a) see, (b) change, and (c) test it.

 

Otherwise, though I'm not an engineer, by looking at your pictures from MAX (without knowing how you have configured the 9205 and what was connected to which terminal -- in particular, are you using both Line 0 and Line 4?), I can see a small periodic signal that has a frequency of 50 Hz.  Are you in Europe, perhaps?  Are your Mains running at 50 Hz?  Are you recording "Mains Noise"?

 

Bob Schor

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