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  40m Log, Page 340 of 344  Not logged in ELOG logo
ID Date Author Type Category Subjectup Text Attachments
  6822   Sat Jun 16 01:03:21 2012 yutaUpdateGreen Lockingused longer delay line for mode scan[Mengyao, Yuta]

Last night, I used 1.5 m delay line
 YarmScan20120615.png 
  9023   Sun Aug 18 20:07:41 2013 ranaUpdateComputer Scripts / Programsuserapps SVN upJoeB and JamieR are working somewhat coherently
on a set of python libraries to fulfill all
of our command line CDS wants. This is being
  
  1614   Wed May 20 16:03:52 2009 steveOmnistructureEnvironmentusing OSEMs to look at seismic activityRana suggested using OSEM sensing voltages
as guide lines to look seismic activity.
As you see todays drilling and tumping
 eqOSEM5m4.jpg 
  7620   Thu Oct 25 09:32:17 2012 SteveOmnistructureIOOusing access connector

    

       
            
 acclosing.jpg 
  196   Tue Dec 18 16:50:35 2007 tobinUpdateSAFETYuvex laser safety glasses defectiveA few days ago we noticed what appeared to
be a blotched, speckled fracturing of the
coating of the "UVEX" laser safety glasses.
 bad-glasses.jpgbad-glasses-zoom.jpg 
  24   Mon Oct 29 09:46:50 2007 steveRoutineVACvac & pem trendPumpdown 64 pumped by maglev for 125 days
pd64-m-d125
 pd64md125.jpg 
  1199   Sun Dec 21 13:00:06 2008 steveUpdateall down cond.vac and laser back onThere was a power outage sometimes early Saturday.

All things are down.
  
  423   Thu Apr 17 15:00:59 2008 steveUpdateVACvac controller computer to be replacedNow that Rosalba is up and running someone
should step forward to volunteer for this
job.
  
  5366   Thu Sep 8 13:20:07 2011 steveUpdatePEMvac envelope at atm for 36 daysWe tried not to open chambers above 10,000
particles of 0.5 micron cf/min
New items going in:      
 vent70.jpg 
  1293   Wed Feb 11 11:39:17 2009 steveConfigurationGeneralvac envelope groundThe vacuum envelope was grounded from
the IOO chamber to master ground north (under
electric breaker panel L)
with
  
  2699   Tue Mar 23 09:37:36 2010 steveUpdateIOOvac envelope has to be sealed as antproof for overnight


   
        
            
 pc3.JPGpc4.JPG 
  2700   Tue Mar 23 09:55:20 2010 KojiUpdateIOOvac envelope has to be sealed as antproof for overnightRoger.

  
  2705   Wed Mar 24 02:06:24 2010 KojiUpdateIOOvac envelope has to be sealed as antproof for overnightMatt and Koji:
We closed the light doors of the
chambers.
  
  1462   Thu Apr 9 11:27:19 2009 steveUpdateVACvac gauge reading problemCold cathode gauge CC4  is reading
normal.
CC1 is glitching, it is probably
 vacgflsec.jpgvacgflmin.jpg 
  10081   Fri Jun 20 14:42:57 2014 steveUpdateSUSvac illuminators turned off    
  1552   Wed May 6 19:04:11 2009 ranaSummaryVACvac imagesSince there's no documentation on this besides
Steve's paper notebooks...
 vacrack.pdf 
  7914   Thu Jan 17 17:04:49 2013 SteveUpdateVACvac monitor screen changedThe COVAC_MONITOR.adl was changed. Ion
pump labeled as disconnected means: ion pump
controller power turned off and ion pump
 screenmod.png 
  11156   Sun Mar 22 18:42:40 2015 SteveUpdateVACvac pressure rose to 1.2mTorr 




 NoN2.pngPressureReadingWorks.png 
  10843   Fri Dec 26 17:45:21 2014 SteveUpdateVACvac pressure rose to 1.3 mTorrWe run out of N2 for the vacuum system.
The pressure peaked at 1.3 mTorr with MC
locked. V1 did not closed because the N2
 noN2.pngbacktoVacNormal.png 
  12014   Tue Mar 1 09:37:15 2016 steveUpdateVACvac rack UPS batteries replacedAmstron batteries replaced after 11 months
with SP-12-5.5HR,  2 years warranty
from replaceUPSbattery.com
 vacRackBat.jpg 
  5529   Fri Sep 23 16:25:01 2011 steveUpdateVACvac rack UPS battery replacedAPC Smart -UPS 2200   model: SUA2200RM2U
  batteries were replaced by compatible
RBC43, 8x  12V5A
 P1080252.JPGP1080254.JPG 
  11178   Fri Mar 27 10:38:40 2015 steveUpdateVACvac rack UPS battery replacedBatteries replaced after 3.5 years with
Amstron AP-1250F2,  8x 12V 6Ah

 UPSvac.jpg 
  1511   Thu Apr 23 16:38:33 2009 steveUpdateVACvac valve relay box is shortingBen and I found this vacuum valve relay
box intermittently shorthing yesterday.
It effects V4, V5, VA6 and VM1........
 vacrel.png 
  7547   Mon Oct 15 13:07:51 2012 jamieUpdateVACvacuum VME crate broken, replaced, minor vacuum mayhem ensuesSteve and I managed to access the fuse
in the vacuum VME crate, but replacing it
did not bring it back up.  We decided
  
  11703   Tue Oct 20 16:27:04 2015 ericqUpdateVACvacuum VME machines rebooted[ericq, Gautam, Steve]

Following roughly the same procedure
as ELOG
  
  12525   Fri Sep 30 10:37:57 2016 SteveUpdateVACvacuum VME machines rebooted[ Gautam and Steve ]

c1vac1 and c1vac2 were rebooted
and the gauges are communicating now. V1,
 rebooted.png 
  2648   Mon Mar 1 11:21:50 2010 steveConfigurationVACvacuum contoller is back to normal


   
        
            
  
  9570   Thu Jan 23 08:04:04 2014 SteveUpdateVACvacuum control screen is blank 
There is 
 pd76m170d2dRgaOn.png 
  11960   Fri Jan 29 09:59:23 2016 SteveUpdateVACvacuum control upgradeRana stated yesterday that there will be
a vacuum control update in the close future.
Witnesses : Rich, Chris and Dave
 1100days.png 
  11706   Wed Oct 21 15:42:56 2015 SteveUpdateVACvacuum gauge checkConvectron gauge check:

Brand new 10 years old convectron
gauge at atm was swapped into the place of
 Gauges.png 
  13664   Mon Mar 5 10:13:21 2018 gautamUpdateVACvacuum healthIn Steve's absence, I've tried
to keep an eye on the health of the vacuum
system. From Attachment #1, the pressure
 VacuumStatus.png 
  12487   Tue Sep 13 16:16:28 2016 ChrisOmnistructureVACvacuum interlock bypassed(Steve, Chris)

The pumpdown had stalled because
of some ancient vacuum interlock code that
  
  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
  
  5962   Sun Nov 20 13:51:54 2011 steveUpdateVACvacuum is back up after ac interruptionState condition: Vac Normal,         
CC1 ~8e-6 Torr
The IFO pressure peaked at 
 notpumping.png 
  7549   Mon Oct 15 17:08:01 2012 SteveUpdateVACvacuum is back with some disabled valves

    

       
            
 VMEcrateout.pngIMG_1725.JPGwarning.pngshortcomings.jpg 
  10845   Sun Dec 28 07:29:16 2014 SteveUpdateVACvacuum is normal

    

       
            
 3d.png 
  9749   Tue Mar 25 14:52:57 2014 steveUpdateVACvacuum is recovered Out
gassing plus leak rate   0.15 
 17hrsNoPumping.png 
  9615   Mon Feb 10 09:45:53 2014 SteveUpdateVACvacuum normal is reached 


 pd77m5d.png13daysAtm.png 
  13268   Tue Aug 29 15:35:19 2017 SteveUpdateVACvacuum pump specifications & manualsRP1 and RP3 roughing pump manual of
Leybold D30A oily rotory pump

Fore pump of
 1759489_995814a9-55c1-4fa1-b333-f446d272c1cc.jpg 
  7605   Wed Oct 24 09:15:12 2012 SteveUpdateVACvacuum rack 24V ps was current limited

    

       
            
 currentlimited24V.jpg 
  5590   Fri Sep 30 18:35:42 2011 steve, kiwamuUpdateVACvacuum set for poweroutageWe did the following:
1, closed V1, VM1,  annuloses:
VASE, VASV, VABS, VAEV,  VAEE and VA6
 prepforpoweroutage.png 
  13245   Wed Aug 23 10:11:46 2017 SteveUpdateVACvacuum valve specificationsThe V1
gate valve specs installed at 40m wiki
page. VAT model number 10846-UE44-0007 Our
  
  4059   Wed Dec 15 16:04:49 2010 steveConfigurationVACvacuum valves found in default conditionThis condition is created when we run out
of nitrogen that holds the valves in set
positions. The Maglev and other turbos are
  
  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
  
  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.
  
  5104   Wed Aug 3 09:40:13 2011 steveUpdateVACventThe vacuum system is coming up to atm.
The vent was started with slow N2 flow. The
PSL output is blocked 2 places on the table.
 pzt2011Aug3.png 
  44   Thu Nov 1 09:17:27 2007 steveRoutineVACvent 64Yesterday before vent I could not lock  MC,
therfore I could not measure the 
transmitted power at MC2 
 vent64.jpg 
  10559   Thu Oct 2 09:23:23 2014 SteveUpdateVACvent 77

    

       
            
 vent77SRMmoved.png 
ELOG V3.1.3-