CHECKING THE VACUUM CONTROL PANEL (on the Orange Door)
5) All of the Red lights should be on ....
under the heading Vacuum Control.
(Unless the stage elevator is raised. Then the stage down light will be off.)
Close up view of lights under the heading Vacuum Control.
The microprobe will not function if the LN2, Diffusion Pump Water, Lens Water, and Gun Chamber Closed lights are not on. The Sample Chamber light will go on if you are changing samples.