That explains it...
The inductive clamp sensor can only mesure AC current.
To test DC, you must put the meter in series with the filter.
http://www.instrumart.com/assets/uei...nix-manual.pdf
WARNING
your DVM can only take 2a max.
https://www.youtube.com/watch?v=x2NLYydxbo4
You must put the DVM in line between the output of the diodes and the filter.
The clamp on thing won't work.