david.barker@LIGO.ORG - posted 08:20, Thursday 10 October 2019 (52393)
increased vacuum alarm levels for PT144B and PT343B
As the pressure on the X1 beam tube increases, I have correspondingly increased the cell phone alarm levels. LX-PT144B to 2.0e-08Torr and MX-PT343B to 3.0e-08Torr