 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. |
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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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Thu Dec 22 15:10:44 2005, Doug Preddy, Shut Down, shut down system
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shuttting down the system. isolated cold box by closing v135. preparing to
pump out cold box. |
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Fri Mar 11 09:18:30 2005, Doug Preddy, Maintenance, services on system
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The cold box was isolated and pumped out after it warmed up. It has been
refilled with helium.
Turbine 2 speed indicator failed at some time during the last run. After
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Fri Nov 23 08:41:45 2007, Doug Preddy, Normal Running, screen grab of powerlead temps 
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Wed Nov 5 16:33:52 2008, Doug Preddy, Normal Running, sbplc light out
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| On main menu the sbplc light was black. All vacuum systems looked good, but there was no control of any device. Jane reset the IOC. It is hosted by sundance. |
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Sat Oct 16 17:13:19 2004, Other, , s
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| s |
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Wed Oct 20 09:38:17 2004, Doug Preddy, Start Up, restarting system
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Solenoid tripped off Monday morning due to high compressor pressure.
Regenerated purifier on Tuesday. Started compressor at 9:00 this morning. |
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Tue Aug 15 08:45:56 2006, Doug Preddy, Quench Recovery, restarted the compressor
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| Solenoid tripped off Sunday. Restarted compressor and cool down of cold box. |
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Tue Jun 14 20:53:19 2005, Doug Preddy, Quench Recovery, restarted refrigerator after power bump
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see bitmap for temps/pressures after presurrizing coldbox. Preparing to
start flow to turbines, then will start flow to solenoid in parallel warm
return. |
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Thu Nov 3 06:19:50 2005, Doug Preddy, Quench Recovery, restart system
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Last night at about 7:00 there was a large power bump that shut the
compressor and water pump off. I came in this morning and am restarting the
system. |
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Fri Apr 20 12:15:12 2007, Doug Preddy, Start Up, remote PLC switch
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I could not control the vacuum devices using EPICS. The buttons could be
pushed, but nothing would respond. The PLC was in local mode. Thumbwheel
to 100, push On/Open button to put it into remote mode. |
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Wed Sep 12 12:01:02 2007, Doug Preddy, Maintenance, regenerated adsorber
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regenerated adsorber
replaced MV902 "ON" switch (used nitrogen precooling on switch) |
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Wed Apr 16 15:15:44 2008, Doug Preddy, Start Up, refrigerator started
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Turned on compressor last Tuesday. Ran purifier until today. Final value 0.15ppm.
Started cool down yesterday. Switched into parallel cold return this
morning, but PIC 229 would not allow the compressor to charge. The compressor tripped due to bad solenoid vacuum (solenoid was warming up). The controller
now seems to be working okay.
Restarted in parallel warm mode at ~12:00 |
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Thu Jun 14 00:10:10 2007, Doug Preddy, Quench Recovery, recovering from earlier quench
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Solenoid quenched on power lead temperature last night at about 6:00. I
restarted flow to the solenoid in parallel cold return. Switched to series
mode and am building liquid. |
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Tue Nov 28 10:32:04 2006, Doug Preddy, Quench Recovery, recovering after looong power outage
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The power has been out for about 24 hours. Recovering coldbox, solenoid and
beamline vacuum.PLC is down for the vacuum system. Started compressor and
am flowing warm helium through the soleniod to warm it up while the vacuum
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Thu Sep 4 10:02:55 2008, Doug Preddy, Normal Running, ramping down solenoid
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| Solenoid power supply will be turned off for Fall shutdown. |
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Sat Jul 28 15:45:17 2007, Doug Preddy, Quench Recovery, quench recovery
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The solenoid tripped off this morning due to pwer lead over temp. The
compressor was also off. I restarted this morning at about 8:15 in
parallel cold return. Switching to series mode at 3:40. |
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Sat Jul 28 22:30:13 2007, Doug Preddy, Quench Recovery, quench again
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recovered system and energized solenoid at about 6:00 this evening.
At 9:30 power lead temps quenched solenoid again. MV52 stuck open during
start-up. |
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Mon Apr 30 09:30:26 2007, Doug Preddy, Normal Running, problems over weekend
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The PLC Limit switch power supply was tripped off on Saturday. I came in
and reset it and restarted all the vacuum systems that had tripped off.
The power leads were found to be warming up. This morning they were at ~
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