Calibration and accuracy with 2.72.

With a new Quad Rev 2.72 I am getting VERY bad voltage accuracy – off by 10%-20%, even after calibration (not perfect calibration, I don’t have all the voltages – but close). It is reading off when the probes are grounded – something like 1V-2V on the 5v scale (others are similar). Playing with the calibration it seems like one will work and then others will not. Can’t try the community software due to 2.72. Could this be all in the factory firmware or is it common or is this a bad unit? What accuracy should I expect? I tried a DSO201 and it seemed much better in this respect.
Thanks!

Statistics : Posted by cory.play • on Fri Feb 21, 2014 1:39 pm • Replies 5 • Views 299

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