richard.savage@LIGO.ORG - posted 17:19, Monday 05 August 2024 - last comment - 12:23, Wednesday 07 August 2024(79462)
PSL camera image and laser room make-up air fan speeds changed in anticipation of tours in the morning
DaveB, RickS
Dave changed the image on the contrl room PSL screen (Nuc 21) and at the Laser Room to show a larger image of the PSL table.
Laser Room make-up air fan speed set to 100%. Lights are OFF, but will be switched on in the morning.
I changed the make-up air speed back to its nominal setting of 20% at ~19:15 UTC (12:15 PDT) on 8/7/2024. The make-up air being on did cause the Laser Room temperature to drop by a couple degF, which in turn caused the output power of both Amp1 and Amp2 to drop by ~2W each; will monitor over the next several hours to ensure things return to normal as the enclosure returns to its normal thermal equilibrium.