aLIGO LHO Logbook

H1 PSL (IOO, PSL)

cheryl.vorvick@LIGO.ORG - posted 00:20, Monday 13 November 2017 - last comment - 09:46, Monday 13 November 2017(39396)

PSL TBLS and ACS look like they're switched

Looking into PSL temperatures, I started looking at the AC temperatures, and what I see is that the signals for TBLS and ACS appear to be switched. Attachment shows from left to right:

left: TBLN (blue) and TBLS(red)
middle: TBLN (blue) and TBLS(red) and ACS(black)
right: TBLN (blue) and TBLS?(black) and ACS?(red)

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jeffrey.kissel@LIGO.ORG - 09:46, Monday 13 November 2017 (39405)CDS, DetChar, IOO, OpsInfo

Link

Opened 
FRS Ticket 9425 to address temperature sensor channel swap problem.

FRS Ticket 9426 to address suspected problem with calibration of the north and south table temperature sensors (we can't believe a ~5 [deg F] between the two sensor exposed to the same air, ~15 ft apart.)