A new residual gas analyzer (RGA) was installed on the end cap door of HAM6 during Oct. break and its cooling fan is noisy. This morning I entered the LVEA at 16:45 UTC while we were out of observing mode but still locked to unplug RGA. Since Robert is on site, we did a test where I unplugged the unit for ~ 40 seconds at 16:48 UTC, plugged back in for 30 seconds at 16:49 UTC and left unplugged before exiting LVEA at around 16:52.