When i turn it to the 200 top left, at first it was at 2.0 when 0 gain. As I turned the gain up to full blast. The reading was 5.0
Than it started going negative, than it started to read 0 no matter what, that I turned it off than turned it on. It got up to about 15.2. Now it is 0 out again.
Lpf is at 80h,
i tried 50hz tune got nothing, turned to 60 hz tune it made a little difference in the DMM.