The data in the Units Conversion Window can appear skewed (or even not appear at all) when LabChart is set to sample at different rates from different inputs - this is a known issue with LabChart for Windows:
The issue only occurs when attempting to perform a Units Conversion on channels using lower sampling rates. In the above example the channels were configured as follows:
Channel 1: 1000 samples/sec
Channel 2: 400 samples/sec
This software problem was fixed in LabChart for Windows software version 8.0.6. Please update to LabChart 8 by downloading the software installer found here to permanently solve this issue.
For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.