 Thu Apr 19 15:18:25 2007, Doug Preddy, Start Up, preparing to start the refrigerator
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Starting the vacuum systems in the coldbox and solenoid. |
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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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Mon Apr 23 16:31:02 2007, Doug Preddy, Start Up, Started compressor
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Startewd compressor and purifer today. |
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Tue Apr 24 10:21:49 2007, Doug Preddy, Start Up, Started flow to turbines
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Started flow to turbines at about 10:00 in parallel warm mode. |
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Fri Sep 14 12:44:52 2007, Doug Preddy, Start Up, started compressor
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running purifier over weekend |
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Mon Sep 24 15:08:41 2007, Doug Preddy, Start Up, Started cool down this morning
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The vacuum in the cold box was good on Friday 0.0 X 10-4. Let it pump over
the weekend. Added two bottles of UHP helium to system Friday.
Started the turbines this morning. Cooling in paralell warm return.
Solenoid vacuum is 3.9 x 10-6 |
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Tue Sep 25 07:34:04 2007, Doug Preddy, Start Up, PIC229 to 11 bar
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adjusted turbine speeds and HIC104 to maintain their values. |
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Wed Sep 26 08:52:46 2007, Doug Preddy, Start Up, switched to parallel cold return
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Thu Sep 27 07:41:15 2007, Doug Preddy, Start Up, Solenoid cold
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Solenoid cold and in series mode. 50% liquid level. Starting flow to
powerleads. |
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Tue Apr 1 15:17:06 2008, Doug Preddy, Start Up, Starting up vacuum systems
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| Monday afternoon there was no control of the vacuum system. The controls were working, but no output to devices. The "output" breaker in the PLC box was found to be tripped. Reseting it allowed control to the vacuum systems.
I started the regeneration of BCP2 this morning, but hte output breaker tripped again. reset it and continued to pump.
Started to pump out the solenoid also. Removed jumper on the BDP2 temperature read-back, bypassed BV2, and BCG2. This allows pumping through the diffussion pump.
Cold box has been pumping for a few weeks. It's at 2.0 x 10-3 |
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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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Wed Apr 16 16:51:16 2008, Doug Preddy, Start Up, switched to parallel cold return
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Thu Apr 17 13:52:25 2008, Doug Preddy, Start Up, switched to series mode at 9:30 this morning
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| switched to series mode at 9:30 this morning. Added two bottles of helium gas.
Started flow to power leads. |
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Wed Mar 24 08:30:33 2010, Doug Preddy, Start Up, Start up
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Compressor started yesterday afternoon. Pumping out solenoid overnight. Cold box vacuum good. circulating helium to solenoid in Parallel warm mode, CV142 open. Purifier running. |
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Mon Mar 29 09:25:52 2010, Kevin Trithardt, Start Up, Started cool down this morning
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Thu Apr 1 11:57:55 2010, Doug Preddy, Start Up, started flow to power leads
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Solenoid cold. Buffer tank pressure ~3psi, so Kevin will add a bottle of helium. Started flow to power leads at 11:45 |
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Fri Apr 9 16:07:28 2010, Doug Preddy, Start Up, flow to power leads started
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Mon Sep 13 10:55:25 2004, Doug Preddy, Shut Down, Quench and shutdown
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The solenoid quenched on powerlead temps this morning at 10:00. It is
warming up and the power leads are >200K.Isolating and purging the coldbox
is not very useful now, so I am shutting the system down. |
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Mon Sep 13 13:56:06 2004, Doug Preddy, Shut Down, compressor off
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compressor off |
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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. |