Following the drop in LN2 level over the last few days (see plot) we decided to bump up the alarm level from 80% to 85% on all CPs to give the vacuum team an earlier warning that the PID controls system is not able to maintain a nominal level.

alarms was restarted 08:16 with the following change

Channel name="H0:VAC-LX_CP2_LT150_PUMP_LEVEL_PCT" low="8.5e+01" high="9.9e+01" description="CP2 Pump LN2 Level">
Channel name="H0:VAC-MY_CP3_LT200_PUMP_LEVEL_PCT" low="8.5e+01" high="9.9e+01" description="CP3 Pump LN2 Level">
Channel name="H0:VAC-MX_CP5_LT300_PUMP_LEVEL_PCT" low="8.5e+01" high="9.9e+01" description="CP5 Pump LN2 Level">
Channel name="H0:VAC-MX_CP6_LT350_PUMP_LEVEL_PCT" low="8.5e+01" high="9.9e+01" description="CP6 Pump LN2 Level">
Channel name="H0:VAC-EY_CP7_LT400_PUMP_LEVEL_PCT" low="8.5e+01" high="9.9e+01" description="CP7 Pump LN2 Level">
Channel name="H0:VAC-EX_CP8_LT500_PUMP_LEVEL_PCT" low="8.5e+01" high="9.9e+01" description="CP8 Pump LN2 Level">