Problem metalica SNF 2012-04-25 05:50:17: Roughing pump doesn't function

jperez at snf.stanford.edu jperez at snf.stanford.edu
Wed Apr 25 06:10:49 PDT 2012


The bell jar wasn't sitting on the base. A big gap, you were trying to
pump down the room is why the vacuum gage wasn't moving.
Move bell jar over base and brought bell jar back down and it chamber
pumped down in normal time.




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