Comment savannah SNF 2010-10-04 16:47:58: base pressure

jprovine at jprovine at
Mon Oct 4 16:47:59 PDT 2010

change of o-ring had no effect on base pressure.  i'll work with maintainence to try two other fixes for the base pressure:
1) we may have excess deposition on the pressure gauge and need to recalibrate that.
2) we can replace the pump oil.
updates to follow.  for now be careful to monitor the base pressure when processing. (currently reading around 135mTorr.

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