Reports until 16:02, Sunday 11 February 2018
LHO General
kyle.ryan@LIGO.ORG - posted 16:02, Sunday 11 February 2018 - last comment - 20:29, Sunday 11 February 2018(40487)
Changed CP4's level PID setpoint to 75% full (down from nominal 92%)
I'll put in a Work Permit tomorrow that details the process of letting CP4 go "dry".  Starting from 75% full will give a little head start to the lengthly process.  Chandra R. has lots of activities related to CP4's decommissioning scheduled for this week so we don't have a lot of "wiggle room".  


This step may well result in CP4 level alarms tonight.  This is expected and is being monitored remotely. 
Comments related to this report
david.barker@LIGO.ORG - 20:29, Sunday 11 February 2018 (40489)

affirmative. The LN2 alarm level is 80%, CP4 just went below that. We'll reconfigure CP4's alarms tomorrow.