travis.sadecki@LIGO.ORG - posted 18:24, Tuesday 08 April 2025 - last comment - 18:49, Tuesday 08 April 2025(83825)
2025 April vent - VAC diary
Today's activities:
Y-manifold purge air header connected to purge valve. Purge air flow rate was adjusted according to removal state (door still bolted, bolts loosened, C3 cover on).
BSC8 -X (South) door was removed.
HAM6 turbo pump, reducer, and gate valve removed from top D7 port. Will be replaced with a blank.
Viewport removed from HAM6 -Y door, port BF2. Will be replaced by new Leybold turbo and reused reducer/GV.
Comments related to this report
jordan.vanosky@LIGO.ORG - 18:49, Tuesday 08 April 2025 (83826)
Purge air dewpoint measured at YBM port of entry during BSC8 door removal. Dew point = -42C