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Entry  Mon Dec 17 20:22:07 2012, Jamie, Update, General, Vent plan: WE VENT TOMORROW 
    Reply  Mon Dec 17 21:33:45 2012, Manasa, Update, General, Vent plan: WE VENT TOMORROW 
    Reply  Tue Dec 18 07:03:40 2012, Manasa, Update, General, Vent plan: WE VENT TOMORROW 
    Reply  Tue Dec 18 10:43:20 2012, Steve, Update, VAC, vent has completed vent74.pngbvent.pngbefVent.png
       Reply  Wed Dec 19 11:53:23 2012, Steve, Update, VAC, AC removed workingatatm.png
       Reply  Thu Jan 24 14:40:09 2013, Steve, Update, VAC, RGA backgroung Screenshot.png
       Reply  Mon Feb 11 16:16:27 2013, Steve, Update, VAC, 55 days at atmoshere atm55d.png
Message ID: 7849     Entry time: Tue Dec 18 10:43:20 2012     In reply to: 7842     Reply to this: 7856   7939   8057
Author: Steve 
Type: Update 
Category: VAC 
Subject: vent has completed 

 The 40m vacuum envelope is at atm    It took 4.5 hours at ~3 Torr/min speed. Atm1

 

What I did:

Turned PZT voltages off: 84.1V at OMC-rack location

                                           -  99V at 1Y3 location as PZT_pitch,

                                             56.6V KEPCO at 1Y3 location as PZT_yaw                                           

Took screen shuts of SUS_SUMMARY, yesterday,  Atm3

Turned off OPLEV _SERVOs, today , Atm2

Closed PSL_SHUTTER and green shutters at the ends

 

Set vacuum valves for vent position and opened VM2 for the RGA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Attachment 1: vent74.png  453 kB  Uploaded Tue Dec 18 15:30:14 2012  | Hide | Hide all
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Attachment 2: bvent.png  360 kB  Uploaded Tue Dec 18 15:48:27 2012  | Hide | Hide all
bvent.png
Attachment 3: befVent.png  219 kB  Uploaded Tue Dec 18 15:49:52 2012  | Hide | Hide all
befVent.png
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