When I measure the voltage as well as AI0 and/or AI1, the domain controller becomes sinus armor as well. If I add more channels (i.e AI3 and AI4) on my USB-6225 DAQmx, without connect anything to them, I can see the sinuses even as I do with AI0 AI1, but with less amplitude. If I measure all three analog inputs or the two and two together, I get a very different result when I measured one and a single channel. Even with a very sampling rate high as 80kS. When I measure the battery voltage on AI2 CC, everything is OK. When I measure the waveform sine on AI1, everything is OK. When I measure the waveform sine on AI0, everything is OK. I had a serious problem regarding the use of DAQmx USB-6225. USB-6225 DAQmx measurement problems when using a voltagesplitter
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