I personally would love to supply you with the answer but I am not informed about your equipment I use the megger pat4 that's preprogrammed for 110v and it has its own connections for 110v so dont need to mislead. Welded environmental chambers are made for high-altitude testing because of https://iec-test-equipment45677.blog-a-story.com/15791226/the-2-minute-rule-for-iec-test-equipment