Reports until 17:47, Tuesday 25 October 2016
H1 General
vernon.sandberg@LIGO.ORG - posted 17:47, Tuesday 25 October 2016 (30876)
Work Permit Summary for 2016 October 25
Work Permit Date Description alog/status
       
6280.html 2016-10-25 16:29 DAQ NDS has bug which reports many errors to the log file when it encounters the new MD5 files. Fix is to remove this reporting from the nds process (note, not the daqd process).  30875
6279.html 2016-10-25 09:19 Perform timing-related measurements at end stations. Output of the CW injection will be disabled for a short while. 30854
6278.html 2016-10-25 08:51 Investigate apparent clipping of Pcal beam, first trying to determine which beam is clipping. Adjust alignment to relieve clipping. Re-calibrate if adjustment of alignment is required.  30827
6277.html 2016-10-25 08:31 Perform scheduled maintenance to scroll compressor #3, #4, #5 @ X-End vent/purge-air supply skid. Maintenance activity will require for the compressors to run for brief periods of time. Lock-out/tag-out power to skid.  30853
6276.html 2016-10-25 08:07 Increase the light on ISS PDA (first loop) [Change the neutral density filter to a less dense number?]  30871
6275.html 2016-10-25 07:31 Update NDS2 client software to version 0.13.0 for Ubuntu 12 and Ubuntu 14 workstations.  30843, 30859
6274.html 2016-10-24 15:05 Remove view port covers in input optics area, output optics area and end stations. Plastic sheet will be available if not already present. LVEA/VEA will be laser hazard.  30867
6273.html 2016-10-24 14:36 Add whitening filter to PMC HVMon channel.  30846, 30859
6272.html 2016-10-24 12:42 Experiment with frame write priority/scheduling settings to help address re-transmit issues. We will reconfigure h1fw2 and if the changes do not cause regressions may move the configuration to h1fw0 & h1fw1.  30859
6271.html 2016-10-24 11:12 E1600292 was approved and will be applied to the VCO in the corner station. This will remove 420kHz noise from the VCO +/- 24V rails.  30869
6270.html 2016-10-24 10:55 Remove and replace UPS batteries for Y-END, X-END, Y-MID, X-MID, and Corner Station vacuum racks.  30823
6269.html 2016-10-24 10:22 Start and run QDP80 pumps (minimum of 30 minutes as routine PM) * Energize Main Turbo Pump controllers and note indicated pressures on either side of fore line isolation valve (aka "Safety Vale") * with header side of Safety Valve at minimum pressure, dump accumulated gas withing turbo pump into fore line via briefly opening Safety Valve * Record pressures in turbos afterwards as "t0" for long term rate-of-rise measurement  30873
6268.html 2016-10-24 10:12 Install picomotors into the mounts for mirrors M06 and M07. This will allow remote tweaking of the beam alignment into the PSL PMC. The PSL will remain up, although we will close the external shutter when actually installing the motors. The beam alignment into the PMC will need to be re-done after the installation.  30798, 30801
6267.html 2016-10-24 10:04 Check/recharge AR HEPI Fluid Accumulators: All SEI platforms down, Fluid Pump Stations Off, check pressure in Accumulators, recharge as needed. Return system to operation. 2ish hours.  30850
6266.html 2016-10-24 09:50 Install gutter on the north side of the OSB Building.  
6265.html 2016-10-24 06:41 Perform quarterly lubrication of all Axivane Supply Fans on site.  
6264.html 2016-10-21 15:16 Expand H1EDCU_DAQ.ini to include the new DAQ diagnostics EPICS channels. DAQ restart required.  30859
6263.html 2016-10-21 13:52 Removal of ISI-WIT projections of GS13s into supension point, as is now covered by SEI models (E1600028). Also revamp of SUS channel storage in the frames (E1600316).  30728, 30821, 30844, 30859
6262.html 2016-10-21 13:34 Pull/Extend picomotor controller cable (DB25) cable from ISCT1 into PSL. Cable will then be connected to picomotor breakout box D1101738 inside PSL.  30726
6261.html 2016-10-21 09:24 Do a noise measurement on the PSL HV power supply in the CER mezzanine. 30781, 30725
6260.html 2016-10-19 14:07 Turn off Proxmox server to install more memory (Proxmox is a virtual host that holds: Matlab license server, autoburt and H0epics) those server will shutdown as well during the installation time.  30859
6259.html 2016-10-19 13:41 Improve diagnostics: better error check for ALS end stations when locked with red; enable device info. 30842
       
Previous Work Permits      
6247.html 2016-10-17 08:57 Pull power and network cable for RGA in corner station. Work will consist of climbing over HAM4 and pulling around BSC2 and BSC3.  30635, 30799