Reports until 14:50, Wednesday 03 August 2016
H1 General
vernon.sandberg@LIGO.ORG - posted 14:50, Wednesday 03 August 2016 (28851)
Work Permits, Maintenance Day 2016 August 02

Work Permits, Maintenance Day 2016 August 02

  Name WP Date Description alogs
1 6026 2016-07-28 Activity: Shutdown h1conlog1-master and h1conlog1-replica. Give the disks to LDAS to archive. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28707
2 6027 2016-07-28 Activity: Start and run chilled water booster pump and Kobelco https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28713
3 6028 2016-07-28 Activity: Run signal cable for new Inficon BPG402 vacuum gauge to be installed on HAM6. Cabling will be routed from HAM6 to rack SUS-R5 (BSC3).  
4 6029 2016-07-28 Activity: Position 3 cleanrooms at the North & South doors of HAM6 for vent. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28743
5 6030 2016-07-28 Activity: MONDAY -verify purge air dew point (testing Kobelco 7/28) -soft close GV 5 & 7 -vent HAM6 up to air -pull north and south doors (in chamber work Tues, Wed) WEDNESDAY -replace CC/pirani gauge with full range ion gauge on an all-metal valve THURSDAY -install doors -pump down HAM6 (~ 3 hrs until turbo can be turned on) FRIDAY -open GV 5 & 7 NOTE: most likely the week of Aug. 14th is when we can transition from turbo to IP only. This work will require crane and fork lift use. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28821
6 6031 2016-07-28 Activity: Lock HEPI at HAM6 for duration of Vent unless intermittent unlocking is desired by commissioners/troubleshooters  
7 6032 2016-07-29 Activity: Tweak/calibrate servos, ISS especially. Check out the TTFSS field box functionality (or lack thereof).  
8 6033 2016-07-29 Activity: Collect video footage for LIGO article. Will have tour group and video activities on Saturday. Vern Sandberg and Rich Abbott to supervise activity for safety and compliance  
9 6034 2016-08-01 Activity: Connect output of Inficon guage (BSC7) to a safety interlock in the CER Mezzanine. Interlock enables/disables the high voltage power supplies to the ITM ESD. Will coordinate with vacuum team when connecting/disconnecting to vacuum gauge. A safety interface relay chassis D1400047 will be installed on top of rack in CER.  
10 6035 2016-08-01 Activity: investigate why epics values changed during the last two timing code upgrades. All EY computer systems will be restarted. No DAQ restart required.  
11 6036 2016-08-01 Activity: DetChar tour of LVEA  
12 6037 2016-08-01 Activity: In prep for ISS upgrades, install a binary IO card in h1psl0's IO Chassis and move one ADC card to make room.  
13 6038 2016-08-01 Activity: Move ISCT6 Take pictures of all cables connected to ISCT6 and document. Disconnect all cables from ISCT6. Insert lexan window to the viewports, remove bellows. Land ISCT6 and move it out of the way so we can remove the HAM6 door the first thing in the morning. Put yellow viewport protectors on HAM6 viewports.  
14 6039 2016-08-01 Activity: We would like to make a measurement while leaving CO2 on at high power overnight. There will be a script to turn the laser on/off automatically.  
15 6040 2016-08-01 Activity: Remove excess property from LVEA per Property Services.  
16 6041 2016-08-02 Activity: Routine (semi-annual) maintenance - measure powers, tweak alignments, calibrate, etc. Area of Activity: Yend Pca  
17 6042 2016-08-02 Activity: Installation and commissioning of the instrument in the bier garten, power and data cable pulling, Area of Activity: LVEA Newtonian Noise Array -- Compact BRS Addition https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28829
18 6043 2016-08-02 Activity: Swap out CO2Y RF driver. Area of Activity: TCS  
19 6044 2016-08-02 Activity: Conducting a brief tour of two in LVEA. This is a potential applicant for the LLO operator position, who has contacted me via a public tour. Undergrad in Physics, specializing in optics and lasers.  
20 6045 2016-08-02 Activity: Conduct a tour of visitors from the Bejing Normal University, China.  
21 6046 2016-08-02 Activity: Tour for candidate.  
22 6047 2016-08-02 Activity: Unplug and test HV cable for ion pump at the Y-End station, and remove and replace broken component(s). Area of Activity: Vacuum, Y2-8 Ion Pump Cable at Y-End and at Y2-8. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28847
23 6048 2016-08-02 Activity: Survey all viewport covers to confirm the lexan assemblies have all hardware in tact.  
24 6049 2016-08-02 Activity: Survey all viewport covers to confirm the lexan assemblies have all hardware in tact.  
25 6050 2016-08-03 Activity: Candidate tours of LVEA, Wed am, Wed pm, Thu pm  
26 6051 2016-08-03 Activity: Convert QUAD PUM/L2 output matrix to ramp matrix for independent channel switching of coil driver analog filtering. Approved ECR is E1500045.