Tom Gardner wrote:


I also should have asked about filtering the power to the unit. We are
at the end of the line and get a lot of crap in our power and we run a
big spot welder that noticeably dims the lights on cycle. How about a
UPS on the DRO?
Most cheap UPS's are not on-line, meaning they only cut in the inverter
when the power completely fails. They have little filtering or
surge suppression when the average voltage is normal. A surge
suppressor might be a better choice, but most of those are
really poor, too.

Jon