I get about 30uA and 30V AC between output and earth.
I don't see the issue, you'll get this with almost any supply, capacitive coupling between output and mains earth is quite normal.
My BK Precision 1697 is 30V and 110uA
If for some reason this is an issue with your system, mains output reference your supply, that is what the earth terminal is on the front panel for.