vernon.sandberg@LIGO.ORG - posted 08:16, Wednesday 14 September 2016 (29691)
Work Permit Summary for 2016 September 13
| Work Permit | Date | Description | alog |
| 6157.html | 2016-09-13 09:28 | Activity: Re-flange RGA using proper vacuum fasteners, i.e. remove and replace factory supplied fasteners, on RGA (if still present) - will require venting the RGA volume while isolated from the X-end via one closed 2 1/2" metal valve*remove redundant O-ring valve which is in-series with the 1 1/2" metal pump port valve and install a turbo pump in its place*Pump RGA volume with leak detector and helium leak check RGA and turbo fittings*Wrap RGA components with aluminum foil and heat tapes so as to be prepared to Bake out RGA (to be done later under separate WP)*Shut down pumps after leak testing is complete | 29665 |
| 6156.html | 2016-09-13 08:42 | Activity: Facilitate Safety tour and Tuesday maintenance Lasers on Tables and Ports closed. | |
| 6155.html | 2016-09-13 07:42 | Activity: New outer loop model w/ sum, norm and RIN modules | 29654 |
| 6154.html | 2016-09-12 14:49 | Activity: Update user accounts on h1brsex and h1brsey to match each other. | 29663 |
| 6153.html | 2016-09-12 14:42 | Activity: Update h0vaclx to add X1 PT140 BPG402 gauge. Requires DAQ restart. | 29657 |
| 6152.html | 2016-09-12 14:22 | Activity: Add Stage 2 SEI Configuration nodes for all of the BSCs. Stage 1 nodes already exist. I will create one node to start and cycle through the states to make sure that all is well before creating the others. | 29655 |
| 6151.html | 2016-09-12 11:54 | Activity: GC core router will be rebooted and have transceivers swapped to upgrade from 1Gb to 10Gb connection with ESnet. Wireless and Internet connectivity will be disrupted during the short outage. CDS and LDAS internal networks will be unaffected, along with the phone system. | |
| 6150.html | 2016-09-12 08:25 | Activity: Safety Audit Committee to tour the LVEA and End Stations. | |
| 6149.html | 2016-09-09 13:43 | Activity: model update (mode RMS monitor point, add offset to PLL output gain adjustment) will require DAQ restart | 29629 |
| 6148.html | 2016-09-09 13:32 | Activity: Create an HWS SDF to report any setting errors with any of the hws epics systems (h1hws[ex,ey,msr]). Will require DAQ restart to trend the SDF statistics. A cleanup of the hws autoburt.req files is also needed. | |
| 6147.html | 2016-09-09 13:20 | Activity: Forklift backup PSL chiller (Wallace) from OSB Receiving to Mechanical Building for testing. | 29566 |
| 6146.html | 2016-09-09 10:31 | Activity: Update the front-end model for the outer loop ISS, fix inverted BIO, add filters for PD diodes to account for whitening | 29570 |
| 6145.html | 2016-09-08 16:06 | Activity: Move backup chiller from Mechanical Building to Chiller room. Will go through the LVEA. | |
| 6144.html | 2016-09-08 15:50 | Activity: Drive down to EX and come back while seismic level is high and IFO locking is difficult. No entry to the building. This is for KAGRA guests. | |
| 6143.html | 2016-09-08 10:36 | Activity: Give two KAGRA scientists a quick LVEA tour while initial alignment is done. | |
| 6142.html | 2016-09-08 08:28 | Activity: Reinstall ISS Servo chassis in PSL-R1. Cabling for Photodiodes 5-8 at HAM2 will also be reconnected to new chassis. | 29570 |
| 6141.html | 2016-09-07 10:54 | Activity: Power down h1fw0 and h1fw1 to document BIOS settings. Shutdowns will be staggered to prevent data loss. | |
| 6140.html | 2016-09-07 09:31 | Activity: Offload ITMY HEPI Position Bias to Load Springs: DeIsolate HEPI, Adjust DSCW Springs to bring free position to servo'd spot. Reisolate platform. | 29671 |