john.worden@LIGO.ORG - posted 08:28, Saturday 21 November 2015 - last comment - 10:45, Saturday 21 November 2015(23622)
Heaters incremented.
I talked with Jeff and Travis and we decided to increment heat as we are running out of range in the FMCS controls. Outdoor temps have fallen to ~18F overnight.
In the LVEA - incremented HC1B from 9 to 10 ma (control signal) at 8:16 PST
EX - incremented HC3 from 10-11 ma at 8:18
EY - incremented HC3 from 10-11 ma at 8:19.
Edit - incremented EX HC3 from 11- 12ma at 8:33 for some additional heat as response was not sufficient.
Attached are plots of the ETMs moving in verticalwith the temperature swing.
And the corner station BS and ITM suses...