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Hi all, I struggled for a while with unexpected DC outcomes from the datalogger. After research I found a DC temperatuur drift error. I think this affects the oscilloscope and voltmeter tool as well. If you watch the attached picture you see a 2 hour record of a 3,3V DC channel (1) and a zero volt (shorted) channel (2). You see a temperature / voltage drift in the range from -38,75 mV by 22 °C to + 2,4 mV by 43,75 °C. The only point where this drift is zero is after 1 hour. For me this DC drift makes the mV range useless and even in the Volt range i have to wait an hour before i have more or less reliable results. The fact that the Range setting in the settings pull down menu is by default on maximum and does not get saved with the workspace, gives always the maximum error for any certain point in time, I made this record with the 10V range in the settings pull down, if it was on the default maximum it was much worse, both channels are in the 100 mV range. Calibrating the device after one hour makes no difference in the temperature dependency. Perhaps this is only the case with my device but that's why we have a forum isn't it? Now my question, where am I wrong? Thanks in advance, Hans.