thomas.shaffer@LIGO.ORG - posted 17:47, Monday 21 December 2015 - last comment - 23:54, Monday 21 December 2015(24370)
Vacuum alarm at MY CP3
I received an alarm in the control room here at 00:50 UTC (16:50 PST) for the MY Cryo Pump 3. The fill percent jmped up to 120% and has since been very slowly trending down (currently at 117.6% at 17:42). Kyle, John, Bubba, and Gerardo have been notified and are monitoring the situation.
Trends below of CP3 and CP4 for the HVE-MY:CP{}_LIC and HVE-MY:CP{}_LT channel for the a few hours before the excursion.
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Update: The percent for CP3 seemed to have leveled off at around 113%. Attached a 4 hours trend of its progress.
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Newest trend. It has climbed back up to 117%. Gerardo is on site to investigate.
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