From iwjung at snf.stanford.edu  Tue Nov 15 21:08:20 2005
From: iwjung at snf.stanford.edu (iwjung at snf.stanford.edu)
Date: Tue, 15 Nov 2005 21:08:20 -0800
Subject: Shutdown tylannitride SNF 2005-11-15 21:08:19: mfs alarm       interlock problem
Message-ID: <mailman.785.1357938953.26006.tylannitride-pcs@snf.stanford.edu>

won't open gate valve...I don't understand but Eric looked at it 



From tberg at snf.stanford.edu  Wed Nov 16 10:23:51 2005
From: tberg at snf.stanford.edu (tberg at snf.stanford.edu)
Date: Wed, 16 Nov 2005 10:23:51 -0800
Subject: Shutdown tylannitride SNF 2005-11-15 21:08:19: mfs alarm       interlock problem
Message-ID: <mailman.786.1357938953.26006.tylannitride-pcs@snf.stanford.edu>

Replaced pump. bases fine leak rate OK



From iwjung at snf.stanford.edu  Thu Nov 24 17:33:19 2005
From: iwjung at snf.stanford.edu (iwjung at snf.stanford.edu)
Date: Thu, 24 Nov 2005 17:33:19 -0800
Subject: Problem tylannitride SNF 2005-11-24 17:33:18: mfc alarm NH3 valve
Message-ID: <mailman.787.1357938953.26006.tylannitride-pcs@snf.stanford.edu>

mfc alarm at end of run at step 110.



From seymour at snf.stanford.edu  Mon Nov 28 08:28:35 2005
From: seymour at snf.stanford.edu (seymour at snf.stanford.edu)
Date: Mon, 28 Nov 2005 08:28:35 -0800
Subject: Problem tylannitride SNF 2005-11-24 17:33:18: mfc alarm NH3 valve
Message-ID: <mailman.788.1357938953.26006.tylannitride-pcs@snf.stanford.edu>

MFc was reading o to .3 with no flow. I did the MFS460 auto zero routine and checked NH3 readout and it looked good, a steady zero reading.