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40m Log |
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Thu Dec 12 17:22:07 2013, Steve, Update, General, rack power supplies checked 8x
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Fri Dec 13 16:34:20 2013, Steve, Update, VAC, PS will be replaced next week 
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Fri Dec 20 20:04:01 2013, Steve, Update, VAC, power supply replaced with a short vent  
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Fri Dec 20 23:00:41 2013, Koji, Update, VAC, power supply replaced with a short vent
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Sat Dec 21 10:53:35 2013, Steve, Update, VAC, power supply replaced with a short vent-pumpdown completed
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Fri Jan 3 11:18:41 2014, Steve, Summary, VAC, power supply replaced with a short vent
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Thu Feb 22 10:49:11 2018, Steve, Update, Electronics, rack power supplies checked 8x
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Message ID: 9510
Entry time: Sat Dec 21 10:53:35 2013
In reply to: 9508
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Author: |
Steve |
Type: |
Update |
Category: |
VAC |
Subject: |
power supply replaced with a short vent-pumpdown completed |
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The recovery- pumpdown reached valve configuration vacuum normal at 20 hours, cc1 7.7e-6 Torr
Lesson learned: turn all pumps off, close all valves before you reboot ! like you would prepare for AC power shut down.
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