david.barker@LIGO.ORG - posted 15:26, Friday 12 January 2018 (40123)
vacuum cell phone alarms reconfigured to make EY/MY more responsive
WP7287
Chandra, Dave:
The Y2 beam tube cold-cathode gauge alarms were sped up from 15 minute to 5 minute reporting. The alarm level was kept at 5.0e-09 torr. The CP4 cold-cathode gauge (PT245) was added to the alarms system with an alarm level of 1.0e-07 (it is operating around 5.8e-08 torr). This work permit was closed.