Reports until 11:44, Wednesday 27 July 2016
H1 General
vernon.sandberg@LIGO.ORG - posted 11:44, Wednesday 27 July 2016 (28676)
Tuesday Maintenance Summary of Work Permits
Name WP Date Description Alog reference
6008.html

2016-07-25 12:48

Activity: i. Replace water filters. ii. Replace flow sensor in the crystal chiller. The laser needs to be taken down in order to perform this task. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28652
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28657
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28675
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28637
6009.html 2016-07-25 13:49 Activity: Install a gutter on the back side of the Carpenters shop.  
6010.html 2016-07-25 13:57  Activity: Perform 5 year inspection of the fire water holding tank. The divers will enter the tank, clean the bottom, inspect the intake & discharge piping, and the tank.  
6011.html 2016-07-25 14:11 Activity: Perform quarterly lubrication of Axivane Supply Fans and semi-annual lubrication of those fan motors at Corner Station and both Mid & End Stations.  
6012.html 2016-07-25 15:25  Activity: Install new version of GDS software to address bugzilla bugs 1027 (diag), 961 (diaggui), 1017 (foton), 628 awggui. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28658
6013.html 2016-07-25 15:55  Activity: Swap the ETMy optical lever laser with a new one to hopefully address complaints about oplev performance. The cooler will need to be opened, so after the swap the new laser will need 4-6 hours to come to thermal equilibrium. No view ports will be exposed during this work.   https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28645
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28641
6014.html 2016-07-25 15:59  Activity: Run network and power cables to ITM cameras at X&Y spool end.  
6015.html 2016-07-25 16:34 Activity: Replacing annulus ion pump on BCS8 will require relocating single-person Genie man lift from receiving area to BCS8, next to TCS table. This will require moving the TCS table partitions. A turbo aux cart will run all day or until the IP can pump alone. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28648
6016.html 2016-07-25 16:54 Activity: Install new framewriter h1fw2. Will be used to investigate frame writer instabilities, may be used as a separate trend frame writer. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28659
6017.html 2016-07-25 17:10 Activity: Check output of Stage2 H2 Coil Driver: Make platform safe, disconnect output of Coil Driver, drive ISO Loop with increasing amp sine. Monitor output of CD in CER. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28649
6018.html 2016-07-25 18:19 Activity: Fix slow channel name bugs in code for h1omc, h1susitmpi, h1susetmxpi and h1susetmypi. DAQ restart and MEDM changes also needed. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28659
6019.html 2016-07-25 20:31 Activity: Escort film crew around LVEA. delayed to Wednesday, 2016 July 27
6020.html 2016-07-26 15:19 Activity: Change whitening gain and filters for the ITMx, ITMy and ETMx optical levers per LHO alog 28615. This only involves changing dip switch states on the relevant Output Configuration Switches. The following changes will be made: ITMx whitening gain to 21 dB, ITMy whitening gain to 15 dB and add 2 whitening filters, ETMx add 1 whitening filter. No view ports will be exposed during this work. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28645
6021.html 2016-07-26 15:26 Activity: Placing additional sensors in the LVEA for the Newtonian noise array. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28660
6022.html 2016-07-26 16:46 Activity: To be able to do the beacon dither alignment, we will place (1)an IPC receiver in h1omc, (2) add digital filters to h1omc, (3) set up an amplitude stabilization loop in h1omcpi, h1omcprocpi and h1etmx(y)pi models. DAQ restart required.  
6023.html 2016-07-26 16:56 Activity: Minor bug fix to CAL-CS front end model. See LLO aLOG 27214. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28640
6024.html 2016-07-26 18:39 Activity: Remove Pcal camera housing at X-beam manifold spool viewport which was installed last week. Housing does not clear vacuum bellows wall by 1 cm. discussed in System’s Meeting, 2016 Juy 27
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28650
6025.html 2016-07-26 21:51 Activity: Add PRCL FF path. Add FF outputs to commissioning frames.