I'm using NI USB 6003 DAQ and LabVIEW 2018.
To explain my issue I have broke down my issue in two cases
I'm reading single channel using "Analog DBL 1 channel 1 sample" . In this case i'm getting value as 0.0 V.
I'm reading the same channel using " Analog 1D DBL N Channel 1 Sample" and Index array function . In this I'm getting value as 0.26 V.
In both cases I've not connected UUT to any channel. And all hardware connection are same in both cases i.e. RSE.
Could you please let me know why I'm getting 0.26 V in case 2. To understand the above cases I've attached snippet of both cases.
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