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40m Log |
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Thu Sep 25 19:42:12 2014, ericq, Update, General, Vent progress
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Fri Sep 26 12:25:34 2014, ericq, Update, General, Vent progress
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Fri Sep 26 16:10:14 2014, ericq, Update, General, Vent update
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Fri Sep 26 17:13:39 2014, ericq, Update, General, Vent update
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Mon Sep 29 12:47:51 2014, ericq, Update, General, Vent update
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Mon Sep 29 17:10:51 2014, ericq, Update, General, Vent update
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Mon Sep 29 18:12:24 2014, ericq, Update, General, Vent update
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Tue Sep 30 11:53:29 2014, ericq, Update, General, Vent update
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Tue Sep 30 16:18:57 2014, Steve, Update, VAC, pump down #78 has started
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Tue Sep 30 18:02:53 2014, Steve, Update, VAC, pump down #78 stops at 320 Torr
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Wed Oct 1 10:21:19 2014, Steve, Update, VAC, pump down #78 stops at 3.5 Torr
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Wed Oct 1 16:26:53 2014, Steve, Update, VAC, pump down #78 completed
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Thu Oct 2 09:23:23 2014, Steve, Update, VAC, vent 77
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Fri Oct 3 10:10:37 2014, Steve, Update, VAC, cold cathode gauge reading switched
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Fri May 8 14:30:09 2015, Steve, Update, VAC, CC1 cold cathode gauges are baked now
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Tue May 12 14:57:52 2015, Steve, Update, VAC, CC1 cold cathode gauges are baked now
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Message ID: 11276
Entry time: Fri May 8 14:30:09 2015
In reply to: 10563
Reply to this: 11287
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Author: |
Steve |
Type: |
Update |
Category: |
VAC |
Subject: |
CC1 cold cathode gauges are baked now |
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CC1s are not reading any longer. It is an attempt to clean them over the weekend at 85C
These brand new gauges "10421002" sn 11823-vertical, sn 11837 horizontal replaced 11 years old 421 http://nsei.missouri.edu/manuals/hps-mks/421%20Cold%20Cathode%20Ionization%20Guage.pdf on 09-06-2012 http://nodus.ligo.caltech.edu:8080/40m/7441
Quote: |
We have two cold cathode gauges at the pump spool and one signal cable to controller. CC1 in horizontal position and CC1 in vertical position.
CC1 h started not reading so I moved cable over to CC1 v
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