travis.sadecki@LIGO.ORG - posted 12:54, Wednesday 01 March 2017 - last comment - 13:37, Wednesday 01 March 2017(34497)
PSL low temp alarm
We received a couple of PSL low temp alarms over the past hour. Looking at the attached trend, over the past hour the temp has dropped from 73.3 degF to 69.2 degF, then turned over and started coming back up to 71 degF. I notified Jason and he is going to look at the PSL enclosure to check that the air conditioning didn't turn on mysteriously.
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At Jason's request, here are some more trends of the PSL temperature on the table (TBLN = table north, TBLS = table south) and the LVEA temperature. All of the PSL temps seem to follow the same trends with slightly smaller magnitude of change. The LVEA trend looks similar in shape to the PSL trends, but it only changes by ~0.1 degF.
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