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ID Date Author Type Category Subject Text   10559   Thu Oct 2 09:23:23 2014 Steve Update VAC vent 77                                10563   Fri Oct 3 10:10:37 2014 Steve Update VAC cold cathode gauge reading switched   We have two cold cathode gauges at the pump spool and one  signal cable      10568   Mon Oct 6 10:23:43 2014 Steve Update VAC Unexpected power shutdown                                10579   Tue Oct 7 16:55:16 2014 Steve Update VAC Unexpected sweaty valves  Pump  spool valves V5, V4, V3 sweating a lot. VM3 and VC2 not so much.      10584   Wed Oct 8 08:46:57 2014 Steve Update VAC VAT valves actuator lubricant                                10587   Thu Oct 9 11:56:35 2014 Steve Update VAC Power outage II & recovery                                10590   Thu Oct 9 17:33:28 2014 Steve Update VAC Power outage II & recovery                                10597   Fri Oct 10 14:41:04 2014 Steve Update VAC Power outage II & recovery                                10599   Mon Oct 13 14:44:52 2014 Steve Update VAC RGA scan pd78 -day 13  Our first RGA scan since May 27, 2014 elog10585  The Rga is still warming up.      10741   Mon Dec 1 17:13:57 2014 Steve Update VAC RGA scan pd78 -day 63                                10837   Tue Dec 23 14:33:24 2014 Steve Update VAC Chiara gets UPS                                10838   Tue Dec 23 15:37:32 2014 Steve Update VAC TP3 drypump replaced                                10843   Fri Dec 26 17:45:21 2014 Steve Update VAC vac pressure rose to 1.3 mTorr We 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      10845   Sun Dec 28 07:29:16 2014 Steve Update VAC vacuum is normal                                10968   Tue Feb 3 15:20:13 2015 Steve, Koji Update VAC Pneumatic pressure is being read again [Koji, Steve] Summary The N2 pressure      11156   Sun Mar 22 18:42:40 2015 Steve Update VAC vac pressure rose to 1.2mTorr        11159   Mon Mar 23 10:36:55 2015 ericq Update VAC Pressure watch script Based on Jenne's chiara disk usage monitoring script, I made a script that checks the N2 pressure, which will send an email      11178   Fri Mar 27 10:38:40 2015 steve Update VAC vac rack UPS battery replaced Batteries replaced after 3.5 years with Amstron AP-1250F2,  8x 12V 6Ah      11184   Tue Mar 31 09:03:32 2015 Steve Update VAC RGA scan pd78 day 182          11243   Fri Apr 24 17:30:32 2015 Jenne Update VAC Pressure watch script broken      11249   Sat Apr 25 18:50:47 2015 ericq Update VAC Pressure watch script broken Ugh, this turns out to be because cron doesn't source the controls bashrc that defines where to find caget and all that      11260   Mon Apr 27 14:37:55 2015 Steve Update VAC N2 pneumatic pressure watch        11261   Mon Apr 27 21:42:07 2015 rana Update VAC Summary pages We want to have a VAC page in the summaries, so Steve      11262   Tue Apr 28 09:49:26 2015 Steve Update VAC Vac Summery Channels          11264   Thu Apr 30 16:30:25 2015 Steve Update VAC N2 pneumatic pressure watch set up We have 2 transduser PX303-3KG5V   http://www.omega.com/pressure/pdf/PX303.pdf They  will be installed on the out put      11274   Tue May 5 16:02:57 2015 Steve Update VAC Vac Summery Channels with discription As it was requested by the Bos. It would be nice to read from the epic screen C1:Vac-state_mon.......Current      11276   Fri May 8 14:30:09 2015 Steve Update VAC CC1 cold cathode gauges are baked now CC1s  are not reading any longer. It is an attempt to clean them over the weekend at 85C      11287   Tue May 12 14:57:52 2015 Steve Update VAC CC1 cold cathode gauges are baked now Baking both CC1 at 85 C for 60 hrs did not help. The temperature is increased to      11292   Fri May 15 16:18:28 2015 Steve Update VAC Vac Operation Guide Vacuum Operation Guide is up loaded into the 40m-wiki. This is an old master copy. Not      11352   Wed Jun 10 15:54:14 2015 Steve Update VAC Vacuum comp. rebooted Koji and Steve succeded rebooting C1vac1, C1vac2 and pressure reading is working now More tomorrow .........      11353   Thu Jun 11 19:40:59 2015 Koji Update VAC Vacuum comp. rebooted The serial connections to the vacuum gauges were recovered by rebooting c1vac1 and c1vac2. Steve claimed that the vacuum screen      11354   Fri Jun 12 08:40:17 2015 Steve Update VAC Vacuum comp. rebooted Koji and Steve, One computer expert and one vacuum expert required.      11387   Wed Jul 1 10:01:25 2015 Steve Update VAC RGA scan pd78 day 275          11483   Thu Aug 6 09:16:57 2015 Steve Update VAC Chiara gets new Ethernet card Yesterday we did put the vacuum system into      11593   Mon Sep 14 10:41:03 2015 Steve Update VAC TP2 dry pump replaced TP2 dry fore pump sn PLE10082 was replaced at pressure 717 mTorr,  TP2 50K rpm 0.33A @ 112,677 hrs      11625   Mon Sep 21 11:12:14 2015 Steve Update VAC cold cathode is flaky CC4 cold cathode gauge jump triggered interlock to close VM1 valve to protect the RGA. The IFO pressure is 1e-5 Torr      11633   Tue Sep 22 08:58:38 2015 Steve Update VAC cold cathode is flaky The cold cathode gauge is back to normal. cc4 is the last gauge is "functioning" MKS is not responding. The spare      11644   Fri Sep 25 17:00:38 2015 Steve Update VAC cold cathode is flaky The IFO pressure is estimated ~1E-6 Torr with modified Vac normal valve configuration. CC4 is in a jumping mode between      11666   Mon Oct 5 10:11:35 2015 Steve Update VAC RGA scan pd78 day 386 RGA background scan. The IFO is closed off from RGA with VM1      11678   Fri Oct 9 11:41:09 2015 ericq Update VAC N2 Pressure fell At 10:02AM, the N2 Pressure fell below 60 PSI. The watch script saw this happen, but I did not recieve the email it is supposed      11695   Fri Oct 16 18:27:52 2015 Steve Update VAC vacuum normal condition Vacuum normal configuration with VM1-closed, VM2-open valve positions. Power load normal 24V 0.2A      11697   Mon Oct 19 11:20:34 2015 gautam Update VAC RGA scan reset Steve pointed out that in the aftermath of the Nitrogen running out a couple of times last week, the RGA had shut itself off thinking      11703   Tue Oct 20 16:27:04 2015 ericq Update VAC vacuum VME machines rebooted [ericq, Gautam, Steve] Following roughly the same procedure as ELOG      11705   Wed Oct 21 10:03:15 2015 Steve Update VAC after running out of N2        11706   Wed Oct 21 15:42:56 2015 Steve Update VAC vacuum gauge check Convectron gauge check: Brand new 10 years old convectron gauge at atm was swapped into the place of      11707   Thu Oct 22 08:52:04 2015 Steve Update VAC clean RGA scan after sweaty Maglev Clean comparable scan at vacuum normal. There was no backstreaming.      11719   Tue Oct 27 10:08:12 2015 Steve Update VAC CC vacuum gauges CC1 and CC2 are working again. Why did they start working  again ?        11832   Tue Dec 1 16:55:04 2015 Steve Update VAC Dataviewer fixed Q adjusted the Dataviewer so it is not chopping of data any more. Thanks.        11858   Mon Dec 7 11:17:51 2015 Steve Update VAC noisy RGA scan at day 433        11863   Tue Dec 8 15:40:48 2015 Steve Update VAC glitchy RGA scan at day 434 The noise floor of the Rga scan is glitching less today

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