Signal railed about 5:18 PM local time, I checked trend data for PT120 and PT180 and no pressure rise noted inside the main volume. Attached is 3 day trend of the pump behavior, very glitchy for a long while already.
System will be evaluated as soon as possible. AIP last replaced on 2015, see aLOG 18261.
Well, it appears as if the pump still has some life, just a few minutes ago started to pump the annulus system, for now.
(Jordan V., Gerardo M.)
Late entry, activity took place last Tuesday 07/22/2025.
The annulus ion pump signal railed again, so this time we decided to replace the controller. It does not seem like the controller improved the ion pump behavior, since the current signal is swinging more than before, see attached plot. We are keeping an eye on this system.
