From tberg at snf.stanford.edu Fri May 18 07:36:40 2012 From: tberg at snf.stanford.edu (tberg at snf.stanford.edu) Date: Fri, 18 May 2012 07:36:40 -0700 Subject: Shutdown tylan6 SNF 2012-05-18 07:36:39: Changing fittings to tube Message-ID: From seymour at snf.stanford.edu Fri May 18 11:13:41 2012 From: seymour at snf.stanford.edu (seymour at snf.stanford.edu) Date: Fri, 18 May 2012 11:13:41 -0700 Subject: Shutdown tylan6 SNF 2012-05-18 07:36:39: Changing fittings to tube Message-ID: replaced teflon quartz to stainless fittings and quartz to quartz fittings. running test From seymour at snf.stanford.edu Fri May 18 11:14:59 2012 From: seymour at snf.stanford.edu (seymour at snf.stanford.edu) Date: Fri, 18 May 2012 11:14:59 -0700 Subject: Problem tylan6 SNF 2012-04-27 11:35:40: one temperature spot among three spots can't reach target value. Message-ID: load zone lags reaching 950 but center zone is at setpoint From seymour at snf.stanford.edu Mon May 21 07:59:04 2012 From: seymour at snf.stanford.edu (seymour at snf.stanford.edu) Date: Mon, 21 May 2012 07:59:04 -0700 Subject: Comment tylan6 SNF 2012-05-21 07:59:03: test results good Message-ID: ran pocl950 for 30 mins dep time. no reading on exhaust line sensor. From tberg at snf.stanford.edu Mon May 21 13:47:18 2012 From: tberg at snf.stanford.edu (tberg at snf.stanford.edu) Date: Mon, 21 May 2012 13:47:18 -0700 Subject: Problem tylan6 SNF 2012-03-22 10:52:06: yellow to run Message-ID: no indications on several runs ok to run From tberg at snf.stanford.edu Mon May 21 13:47:55 2012 From: tberg at snf.stanford.edu (tberg at snf.stanford.edu) Date: Mon, 21 May 2012 13:47:55 -0700 Subject: Comment tylan6 SNF 2012-03-09 14:12:03: POCL3 status Message-ID: no indications on several runs OK to run From shott at snf.stanford.edu Sun May 27 16:14:48 2012 From: shott at snf.stanford.edu (shott at snf.stanford.edu) Date: Sun, 27 May 2012 16:14:48 -0700 Subject: Shutdown tylan6 SNF 2012-05-27 16:14:47: POCl3 leakage signal .... Message-ID: We've developed another leak. I think that this may actually be a secondary problem and that the primary problem is insufficient quartz wool at the back of this tube with the end result that the quartz-to-teflon tube fitting is getting overheated. Of course, that is mere speculation .... but we did see another POCl3 alarm condition this afternoon. John From seymour at snf.stanford.edu Wed May 30 14:35:56 2012 From: seymour at snf.stanford.edu (seymour at snf.stanford.edu) Date: Wed, 30 May 2012 14:35:56 -0700 Subject: Shutdown tylan6 SNF 2012-05-27 16:14:47: POCl3 leakage signal .... Message-ID: removed backing plate and repacked between plate and rear of tube. replaced teflon fittings and reheated tube. ran POCL950 for 30 mins and no detection of HCL on sensors. From seymour at snf.stanford.edu Wed May 30 14:38:53 2012 From: seymour at snf.stanford.edu (seymour at snf.stanford.edu) Date: Wed, 30 May 2012 14:38:53 -0700 Subject: Problem tylan6 SNF 2012-05-30 14:38:52: tube needs staff monitoring when running Message-ID: contact staff to use tube, so that POCL3 can be turned on.