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ID Date Author Operational Mode Subject Text   37   Wed Jul 28 23:07:01 2004 Doug Preddy Quench Recovery solenoid cooling cooling rates for the solenoid are good. In parallel cold return.      265   Wed Dec 10 15:41:04 2008 Doug Preddy Shut Down shuttting down solenoid shuttting down solenoid for winter shutdown.      116   Thu Dec 22 15:10:44 2005 Doug Preddy Shut Down shut down system shuttting down the system. isolated cold box by closing v135. preparing to  pump out cold box.      91   Fri Mar 11 09:18:30 2005 Doug Preddy Maintenance services on system The cold box was isolated and pumped out after it warmed up. It has been  refilled with helium.      238   Fri Nov 23 08:41:45 2007 Doug Preddy Normal Running screen grab of powerlead temps        264   Wed Nov 5 16:33:52 2008 Doug Preddy Normal Running sbplc light out On main menu the sbplc light was black. All vacuum systems looked good, but there was no control of any device. Jane reset the      65   Sat Oct 16 17:13:19 2004 Other   s s      69   Wed Oct 20 09:38:17 2004 Doug Preddy Start Up restarting system Solenoid tripped  off Monday morning due to high compressor pressure.  Regenerated purifier on Tuesday. Started      158   Tue Aug 15 08:45:56 2006 Doug Preddy Quench Recovery restarted the compressor Solenoid tripped off Sunday. Restarted compressor and cool down of cold box.      103   Tue Jun 14 20:53:19 2005 Doug Preddy Quench Recovery restarted refrigerator after power bump see bitmap for temps/pressures after presurrizing coldbox. Preparing to  start flow to turbines, then will start flow      112   Thu Nov 3 06:19:50 2005 Doug Preddy Quench Recovery restart system Last night at about 7:00 there was a large power bump that shut the  compressor and water pump off. I came in      188   Fri Apr 20 12:15:12 2007 Doug Preddy Start Up remote PLC switch I could not control the vacuum devices using EPICS. The buttons could be  pushed, but nothing would respond. The PLC      216   Wed Sep 12 12:01:02 2007 Doug Preddy Maintenance regenerated adsorber regenerated adsorber replaced MV902 "ON" switch (used nitrogen precooling on switch)      245   Wed Apr 16 15:15:44 2008 Doug Preddy Start Up refrigerator started Turned on compressor last Tuesday. Ran purifier until today. Final value 0.15ppm. Started cool down yesterday. Switched into parallel      202   Thu Jun 14 00:10:10 2007 Doug Preddy Quench Recovery recovering from earlier quench Solenoid quenched on power lead temperature last night at about 6:00. I  restarted flow to the solenoid in parallel      184   Tue Nov 28 10:32:04 2006 Doug Preddy Quench Recovery recovering after looong power outage The power has been out for about 24 hours. Recovering coldbox, solenoid and  beamline vacuum.PLC is down for the vacuum      257   Thu Sep 4 10:02:55 2008 Doug Preddy Normal Running ramping down solenoid Solenoid power supply will be turned off for Fall shutdown.      209   Sat Jul 28 15:45:17 2007 Doug Preddy Quench Recovery quench recovery The solenoid tripped off this morning due to pwer lead over temp. The  compressor was also off. I restarted this      210   Sat Jul 28 22:30:13 2007 Doug Preddy Quench Recovery quench again recovered system and energized solenoid at about 6:00 this evening. At 9:30 power lead temps quenched solenoid      194   Mon Apr 30 09:30:26 2007 Doug Preddy Normal Running problems over weekend The PLC Limit switch power supply was tripped off on Saturday. I came in  and reset it and restarted all the vacuum

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