Problem metalica SNF 2007-10-15 11:22:12: Hi-vac needs regen

dkozak at dkozak at
Mon Oct 15 11:22:13 PDT 2007

After pumping down using rough vac, and closing the rough pump valve, opened hi-vac valve.  Immediate increase in pressure (off the scale) and cryo pump temperature is 133 K.  

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