Received an FMCS Air Handler HIGH RED alarm. This evening. I've acknowledged it, and it will probably stay in the RED state until addressed (if this is a new running state, we should update the alarm handler).
This might be correlated with John turning off heaters on Tuesday, but not sure.
Will send an email to John/Bubba.
Hmmm. I note that this seems to roughly correspond in time with our locking (and esp. alignment) troubles of the last 2 days.
A better representation of LVEA temperature is this signal:
H0:FMC-LVEA_CONTROL_AVTEMP_DEGF
see plot for the last 4 days.
Keita, Sheila
While the average temperature in the LVEA has been stable, the temperature has changed by about 1 degree C in several zones. Here is a plot of PR3 PIT (oplev and osem) as the temperature changes. These sensors could both be sensitive to temperature, but the optic could also have really moved with the temperature change.
It still seems plausible that our alignment difficulties of the last few days are related to temperature.
