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ID Date Author Type Categoryup Subject Text Attachments
  1857   Fri Aug 7 16:11:11 2009 steve, robConfigurationVACIFO pressure rose to 2.3 mTorr


   
        
            
  
  1858   Fri Aug 7 16:14:57 2009 robOmnistructureVACUPS failedSteve, Rana, Ben, Jenne, Alberto, Rob
 
UPS in the vacuum rack failed this
  
  1863   Fri Aug 7 18:06:24 2009 robOmnistructureVACopening V1 when PTP1 is brokenWe've had a devil of a time getting V1
to open, due to the Interlock code. 
 
  
  1864   Fri Aug 7 19:34:40 2009 steveSummaryVACUPS failedThe Maglev is running on single phase 220V
and that voltage  was not interrupted.
TP1 was running undisturbed with V1 and V4
  
  1865   Fri Aug 7 19:55:08 2009 steveSummaryVACopening V1 when PTP1 is brokenThe swapped in 307 convectron gauge controller 
is very likely to have the  RS232 connection 
wired differently from the old one.
  
  1912   Sat Aug 15 18:57:48 2009 ranaUpdateVACUPS failedAs Rob noted last Friday, the UPS which
powers the Vacuum rack failed. When we were
trying to move the plugs around to debug
  
  1937   Mon Aug 24 16:48:57 2009 steveHowToVACnew UPS installed


   
        
            
  
  1967   Fri Sep 4 16:09:26 2009 josephbSummaryVACRebooted RGA computer and reset RGA settingsSteve noticed the RGA was not working today. 
It was powered on but no other lights were
lit.
  
  1974   Tue Sep 8 16:01:52 2009 steveConfigurationVACRGA was separeted from IFOThe RGA isolation valve VM1 was closed
since Aug 24, 2009  I installed the
new UPS that time.
 vm1closed.jpg 
  2137   Fri Oct 23 09:13:45 2009 steveSummaryVACRGA scanPump down #66 is 435 days old. RGA scan
is normal. New maglev is fine. New UPS is
in place but not hooked up to communicate.
 pd66md435.jpgpd66d435ptt.jpg 
  2360   Mon Dec 7 09:38:05 2009 KojiUpdateVACVent startedSteve, Jenne, Koji
The PSL was blocked by the
  
  2386   Thu Dec 10 13:50:02 2009 JenneUpdateVACAll doors on, ready to pump[Everybody:  Alberto, Kiwamu, Joe,
Koji, Steve, Bob, Jenne]
The last heavy door was put on after
  
  2387   Thu Dec 10 15:18:55 2009 JenneUpdateVACseisBLRMSlast 20 days - including the pounding from
next door
 Untitled.png 
  2388   Thu Dec 10 16:51:35 2009 steveUpdateVACpumpdown will start tomorrow morningThe vacuum system is at 760 torr 
All chambers with doors on and their annuloses
are pumped down.
  
  2394   Fri Dec 11 08:35:04 2009 steveConfigurationVACpumpdown has startedOplev positions before and after drag wiped
arm TMs as of yesterday. Slow-mode pumpdown
has started with 3/4 turn opened  RV1
 wiping.jpg 
  2397   Fri Dec 11 13:18:17 2009 AlbertoConfigurationVACpumpdown has started


   
        
            
  
  2399   Fri Dec 11 14:19:22 2009 KojiConfigurationVACpumpdown has startedWait,
Wait, Wait.
  
  2400   Fri Dec 11 15:21:40 2009 steveConfigurationVACpumpdown#67 is completed

    
        
 pd7h.jpgoplevpd8h.jpg 
  2538   Thu Jan 21 11:08:30 2010 kiwamu, steveUpdateVACDry Pump replacement This morning I and Steve replaced 
the dry fore pump of TP3, which is located
under the y-arm.
 DSCN0428.JPG 
  2573   Fri Feb 5 11:01:49 2010 steveConfigurationVACslow pumpdown valve I have installed a slow start throttle
valve in front of V3  This spring loaded
valve will cut down on the flow at high pressures.
 slow.JPG 
  2589   Thu Feb 11 15:53:59 2010 steveConfigurationVACPSL output shutter is closedJoe and Alex are working on the computers.
Our vacuum system is temporary "All
off" condition: meaning all valves are
  
  2592   Thu Feb 11 18:53:57 2010 steveConfigurationVACVAC NORMAL is back

    
        
  
  2613   Thu Feb 18 15:39:16 2010 Koji and SteveConfigurationVACvalve condition: ALL OFFAs preparation for the upcoming planned
power outage we turned turbos, RGA off and
closed valves.
  
  2616   Fri Feb 19 10:18:19 2010 JenneUpdateVACThe P1 vac pressure is almost to 3mTorrThe Vac pressure measured at P1 is at 2.5mTorr. 
I expect we'll hit 3mTorr sometime this afternoon,
at which point (according to Steve) the interlock
 VacPressureAlmostShutoffLaser_19Feb2010.png 
  2624   Mon Feb 22 11:38:05 2010 joe, jenne and steveConfigurationVACvacuum is back to normalMorning condition: vacuum rack power is
still off, no MEDM screen reading.....meaning
unknown vacuum pressure.We closed PSL shutter
  
  2631   Tue Feb 23 13:37:04 2010 kiwamu and steveConfigurationVACventing the 40m vac envelopeKiwamu and Steve have started venting
the 40m vacuum envelope.
Preparation:
  
  2633   Tue Feb 23 16:20:44 2010 steveConfigurationVACoutgassing + leak

    
        
 outgleak.jpg 
  2635   Tue Feb 23 19:00:45 2010 kiwamuConfigurationVACvent finishedThe vent has been
finished.
  
  2636   Tue Feb 23 19:07:43 2010 kiwamu and steveConfigurationVACvent is completed

    
        
 vent2010feb23.jpg 
  2644   Fri Feb 26 15:32:13 2010 steveConfigurationVACpreparation for power outage: vacuum all offThere is a planned power outage tomorrow,
Saturday from 7am till midnight.
I vented all annulies and switched
 ventd3.jpg 
  2648   Mon Mar 1 11:21:50 2010 steveConfigurationVACvacuum contoller is back to normal


   
        
            
  
  2670   Fri Mar 12 17:08:22 2010 steveConfigurationVACbg-RGAscan at d18RGA scan of rga-region only at day 18  
This is the back ground of the rga with some
calibration gas.
 bg-d18_20100312scan.png 
  2803   Fri Apr 16 17:46:54 2010 KojiUpdateVACPeeting mirrors alignedSteve and Koji
We aligned the peeping mirrors to
look at the surface of the ITMs. 
  
  2963   Fri May 21 00:30:44 2010 JenneUpdateVACTP3 fore pump is very loud[Jenne, Kiwamu, and Steve via phone]
Around 9:30pm, Kiwamu and I came
back from dinner, and were getting ready
  
  2965   Fri May 21 08:28:29 2010 steveConfigurationVACTP3 turned off


   
        
            
  
  2970   Fri May 21 16:37:35 2010 steveConfigurationVACtp3's drypump replacedBob replaced the tipseal in an other drypump
and I swapped it in. TP3 turbo is running
again, it's foreline pressure is 40 mTorr.
  
  3009   Fri May 28 13:32:01 2010 alberto, kiwamuUpdateVACvacuum workWe started
a vacuum work in this morning. And still
  
  3010   Fri May 28 13:51:51 2010 JenneUpdateVACvacuum work


   
        
            
  
  3011   Fri May 28 14:24:30 2010 JenneUpdateVACvacuum workI just got off the phone with Alberto and
Kiwamu, and I'm going to try to recalculate
things based on their measurements of the
  
  3111   Wed Jun 23 23:55:03 2010 Katharine, Sharmila, Rana, Steve and KiwamuUpdateVACwiped the BSSome unused
optics in the BS chamber were removed. 
  
  3114   Thu Jun 24 11:16:32 2010 Sharmila, Rana and KiwamuHowToVACInspection of the BS (sorry, no sounds)    
  3116   Thu Jun 24 16:59:24 2010 josephbUpdateVACFinished restoring the access connector and door[Jenne,  Kiwamu, Steve, Sharmila,
Katherine, Joe]
We finished bolting the door on the
  
  3138   Tue Jun 29 17:10:49 2010 steve, ranaUpdateVACslow pumpdown startedThe folding crane was fixed and tested
this morning by the NNN rigging company.
Pictures will be posted by Steve in the morning.
  
  3140   Tue Jun 29 23:49:18 2010 steve, ranaUpdateVACslow pumpdown started   Untitled.png 
  3141   Wed Jun 30 00:45:26 2010 ranaUpdateVACslow pumpdown stopped for the nightAs per Steve's instructions, at 12:43 AM,
I used the following steps to stop the pumpdown
until the morning:
  
  3148   Wed Jun 30 15:24:04 2010 steve,kiwamuUpdateVACslow pumpdown copmlete


   
        
            
 slowpd.jpgbutterfly.JPG 
  3152   Thu Jul 1 10:26:34 2010 steveConfigurationVACpd68 at vacuum normal stateSlow pump down _pd68 has reached the vacuum
normal state.  CC4_Rga region is pumped
now. The RGA is still off.
 pd68slow2d.jpgpem134d.jpg 
  3248   Tue Jul 20 08:04:31 2010 steveConfigurationVACslow vent has startedThe PSL shutter was closed. The beam path 
blocked two places. High voltage power supplies
to IOO and OMC PZT were checked to be off.
  
  3254   Tue Jul 20 23:52:36 2010 kiwamuUpdateVACupdate: slow vent has startedThe
vent is still going on. At this moment the
pressure inside of the chambers is about
 untitled.png 
  3259   Wed Jul 21 12:41:31 2010 kiwamuUpdateVACvent finishedThe vent
has been finished successfully in this morning.
  
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