Is this a new piece of equipment, Seadog?
Regardless of "chapter and verse" of various regulations, if I had come across a situation like that I would have provided an earth connector to the stand (frame); thus simplifying matters for future generations of tests (at least).
No doubt someone will now come on here shouting ... "but that would be a modification"; to which my reply would be ... "I only care about patient and user safety".
By the way, does the unit pass EST checks at it stands? Where do you (your electrical safety tester probe) find its "earth"?
