 Wed Dec 10 15:41:04 2008, Doug Preddy, Shut Down, shuttting down solenoid
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| shuttting down solenoid for winter shutdown. |
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Mon Aug 9 14:27:12 2010, Doug Preddy, Shut Down, Helium plant shut down
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Fri Dec 19 11:34:10 2003, Doug Preddy, Quench Recovery, Final home of this E-log
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http://isac.triumf.ca/m9sol/
Chris has set up the M9 solenoid e-log at the above web address. Play with
it and let me know if it breaks. |
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Sun Apr 25 21:41:00 2004, Willy Andersson, Quench Recovery, Trip on PL Temp.
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Got pager call at 16:20 this afternoon. Solenoid had tripped on PL
temperature. Arrived at about 17:00. Did a print screen of the striptool
graph and solenoid screen. See files Prtscrn1_april25_2004.doc and
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Mon Apr 26 07:48:46 2004, Doug Preddy, Quench Recovery, Series mode
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| Switching over to series mode. |
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Mon Apr 26 08:12:30 2004, Doug Preddy, Quench Recovery, Power leads flow
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Throttled back the LHe in until the power leads started to warm. My goal is
to flow "warm" gas (hopefully 80K) through the leads to drive any frozen
impurities out. |
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Thu Apr 29 23:43:15 2004, Doug Preddy, Quench Recovery, Starting flow to solenoid
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Solenoid quenched due to power leads at 9:00 tonight. Restarted flow in
parallel warm mode. |
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Fri Apr 30 01:53:34 2004, Doug Preddy, Quench Recovery, switched to parallel cold
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Wed May 5 07:55:37 2004, Doug Preddy, Quench Recovery, Solenoid quenched on power lead temp 
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Solenoid quenched on power lead temp. I ran down and managed to recover it
with minimal temp rise in the solenoid. Coil temps are falling, liquid is
building. No flow to the power leads yet. |
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Wed May 5 09:59:10 2004, Doug Preddy, Quench Recovery, started flow to power leads
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Started flow to power leads.
TIC121 into auto mode |
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Wed May 5 23:57:38 2004, Willy Andersson, Quench Recovery, Powerleads warming up again.
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Got a page from Don Flemming at about 18:50 wondering why the power
lead temperatures were rising. See attachment may5_04_1800.BMP It looked as
though the monitoring signals flat lined for about 2 hours for some reason.
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Thu May 6 09:32:13 2004, Willy Andersson, Quench Recovery, Additional notes from last night power lead problems.
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When performing last nights refrigerator adjustments I also increased the
compressor discharge pressure to 11.25 barA. Also the backup air compressor
was tripped off again and I reset it. Finally I opened the city water flow
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Fri Jun 25 12:36:04 2004, Willy Andersson, Quench Recovery, Compressor unloaded etc.
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At about 09:30 this morning I noticed the sound coming from the compressor
building seemed louder than usual. After entering the building I noted that
the compressor was unloaded to about 50% and the compressor suction was
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Fri Jun 25 14:20:58 2004, Willy Andersson, Quench Recovery, Switch to series mode
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At about 14:00 solenoid temps dipping below 8 K. Trace of LHe level (dense
gas) starting to show. Switching to series cooling mode. |
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Tue Jul 27 23:33:27 2004, Doug Preddy, Quench Recovery, Solenoid quench 9:30
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I was phoned at about 9:30 tonight with a solenoid alarm. After looking at
the display I found the system to be tripped off. When I came in I found
the compressor off and the solenoid quenched. There was no real indication
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Wed Jul 28 00:04:30 2004, Doug Preddy, Quench Recovery, started flow to solenoid
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Solenoid temps were: C1 & C12 about 30K. C6 &C7 about 11K. Started flow to
solenoid in parallel cold return. Jumpered out the vacuum gauge for the
solenoid vacuum. |
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Wed Jul 28 07:00:18 2004, Doug Preddy, Quench Recovery, switch to series mode
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| Switching to series mode. Jumper on vacuum gauge removed. |
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Wed Jul 28 21:26:19 2004, Doug Preddy, Quench Recovery, Double Power bump
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Two power bumps tonight. Everything tripped of. Restarted cooling water
pump, diff. pump under solenoid etc. Computer stayed on! Starting
compressor. |
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Wed Jul 28 22:01:31 2004, Doug Preddy, Quench Recovery, Starting flow to solenoid
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| c1 28, c12 29, c6 11.6, c7 12.5 TI121 22.5 |
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Wed Jul 28 23:07:01 2004, Doug Preddy, Quench Recovery, solenoid cooling
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| cooling rates for the solenoid are good. In parallel cold return. |