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Electron Microprobe Lab, University of Minnesota

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On-line help and FAQ:


The superprobe I am working on is having vacuum trouble. We need to run the
roughing pump for an extended period of time to reach low vacuum and turn on the
diffusion pump, but there is a timer that turns off the system if high vacuum is
not reached in 30 minutes. How can I disable the timer? I have tried adjusting
the potentiometers on the manual pump control panel so that all three pressure
meters report high vacuum, but it still did not disable the timer.