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Reports until 19:26, Saturday 11 May 2024
LHO FMCS (PEM)
oli.patane@LIGO.ORG - posted 19:26, Saturday 11 May 2024 (77786)
HVAC Fan Vibrometers Check FAMIS

Closes FAMIS#26300, last checked in 77519

Corner Station Fans (attachment1)
- FAN4 1 (attachment2) is fully within range, but looks to have started oscillating sharply over the past few days. It makes sense that the fan would grow louder because of the jump in temperature over the last few days, but for whatever reason the oscillations are also much sharper than they were last year (attachment3). I am guessing this difference is just from a change made to the fan/controls but still wanted to note it.
- All other fans are looking normal and within range.

Outbuilding Fans (attachment4)
- All fans are looking normal and within range.

Images attached to this report
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