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Entry  Thu Dec 20 21:29:41 2018, Jon, Omnistructure, Upgrade, Vacuum Controls Switchover Completed 40m_vacuum_acromag_channels.pdf
    Reply  Fri Dec 21 11:13:13 2018, gautam, Omnistructure, VAC, N2 line valved off VacGauges.pngScreenshot_from_2018-12-21_13-02-06.png
       Reply  Fri Dec 21 12:57:10 2018, Koji, Omnistructure, VAC, N2 line valved off 
          Reply  Thu Jan 3 15:08:37 2019, gautam, Omnistructure, VAC, Vac status unknown Screenshot_from_2019-01-03_15-19-51.pngScreenshot_from_2019-01-03_15-14-14.png997B13A9-CAAF-409C-A6C2-00414D30A141.jpeg
             Reply  Fri Jan 4 17:43:24 2019, gautam, Update, CDS, Timing issues 
                Reply  Wed Jan 9 11:33:35 2019, gautam, Update, CDS, Timing issues still persist gpstimeSync.pngScreenshot_from_2019-01-09_17-56-58.png
          Reply  Fri Jan 4 10:25:19 2019, Jon, Omnistructure, VAC, N2 line valved off 
    Reply  Thu Mar 21 18:36:59 2019, Jon, Omnistructure, Upgrade, Vacuum Controls Switchover Completed 40m_Vacuum_Acromag_Channels_20190321.pdf
Message ID: 14377     Entry time: Fri Dec 21 11:13:13 2018     In reply to: 14375     Reply to this: 14379
Author: gautam 
Type: Omnistructure 
Category: VAC 
Subject: N2 line valved off 

Per the discussion yesterday, I valved off the N2 line in the drill press room at 11 am PST today morning so as to avoid any accidental software induced gate-valve actuation during the holidays. The line pressure is steadily dropping...

Attachment #1 shows that while the main volume pressure was stable overnight, the the pumpspool pressure has been steadily rising. I think this is to be expected as the turbo pumps aren't running and the valves can't preserve the <1mtorr pressure over long timescales?

Attachment #2 shows the current VacOverview MEDM screen status.

Attachment 1: VacGauges.png  30 kB  | Hide | Hide all
VacGauges.png
Attachment 2: Screenshot_from_2018-12-21_13-02-06.png  26 kB  Uploaded Fri Dec 21 13:03:21 2018  | Hide | Hide all
Screenshot_from_2018-12-21_13-02-06.png
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