 Fri Sep 26 09:44:25 2008, Doug Preddy, Maintenance, Water flow interlock restored
|
| yesterday |
|
Fri Oct 5 10:25:43 2007, Doug Preddy, Quench Recovery, Unknown quench 2
|
Kevin and I were at the Sulzer panel when the system quenched 2. No
obvious reasons. Restarted the system. |
|
Thu Jun 9 21:41:25 2005, Willy Andersson, Quench Recovery, Trying to achieve stable cooling.
|
From about 08:00 to 15:00
See Doug's previous entry for quench recovery details.
|
|
Sun Apr 25 21:41:00 2004, Willy Andersson, Quench Recovery, Trip on PL Temp.
|
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
|
|
Thu Jun 9 06:53:40 2005, Experimentor, Other, Trip at 6:45 Today.
|
Solenoid quenched at 6:45. All temperature monitors were flat until trip.
Hearing compressor stop was first warning. Lights are:
Turbine T1 overspeed, Compresor alarm, cryostat quench.
|
|
Tue Jun 19 21:15:41 2007, Doug Preddy, Quench Recovery, Today's quench
|
power lead temps caused a quench at 8:30 this morning. Recovery of system
and flow to solenoid was started by 11:00. Solenoid was switched to series
cold at 3:00. Solenoid and power leads were cold at ~6:30. power supply
|
Fri Dec 19 13:07:25 2003, Willy Andersson, Maintenance, To-Do list for M9SOL 
|
I had distributed this list by email earlier this month. I have added
a few items at the bottom. I am posting it on the M9SOL Elog under
Maintenance. Some of the items may not be achievable or practical but
|
 Fri Dec 19 13:59:53 2003, Doug Preddy, Maintenance, To-Do list for M9SOL
|
> I had distributed this list by email earlier this month. I have added
> a few items at the bottom. I am posting it on the M9SOL Elog under
> Maintenance. Some of the items may not be achievable or practical but
|
|
Tue Aug 24 12:09:50 2004, Doug Preddy, Normal Running, The past few days
|
The solenoid has been re-started as of August 19. It was cooled down and
energized over the weekend. Sunday night at 9:30 it tripped due to
negative power lead going above it's set point. The system stopped flow to
|
|
Fri Apr 27 10:16:44 2007, Kevin Trithardt, Quench Recovery, Test
|
Don't Panic -- There was no quench. I am testing the e-log.
I have added Kevin's name and e-mail to the M9 e-log. He will be e-mailed
when a quench recovery log is submitted. His name is also included in the
|
|
Tue Jun 13 16:04:33 2006, Willy Andersson, Quench Recovery, TIC 121 set to auto mode
|
| |
|
Thu Jul 20 02:59:06 2006, Doug Preddy, Quench Recovery, T1 still not starting
|
| I will leave the cold box to warm overnight and try it again in the morning. |
|
Thu Jul 20 08:18:31 2006, Doug Preddy, Quench Recovery, T1 started
|
Started flow to turbines. Both started. T1 seems a bit slow. HIC110 at 0.85
SI110 = 4100.
Cool down started. |
|
Thu Jul 20 00:52:13 2006, Doug Preddy, Quench Recovery, T1 frozen
|
| T1 will not spin up. Warming up cold box. |
|
Wed Apr 21 09:57:59 2004, Willy Andersson, Start Up, System status
|
Buffer tank pressure is down to about 6 psig. Too low to keep up
with liquefaction requirements to build LHe level. Doug Preddy
requested that I help Curtis Ballard top up system with new
|
|
Sun Aug 14 10:03:13 2005, Willy Andersson, Normal Running, System stable
|
No experiment running in M9B.
Solenoid current is zero and power supply not armed.
|
|
Fri Nov 9 18:56:20 2007, Doug Preddy, Maintenance, System Ready to Run
|
| M9BMP2 was replaced. Vacuum good. Solenoid is ramped up. :) |
|
Wed Aug 9 07:50:49 2006, Doug Preddy, Quench Recovery, Switched to series mode.
|
| Cool down continues. |
|
Thu Oct 5 14:53:54 2006, Doug Preddy, Start Up, Switched to series mode
|
| |
|
Thu May 31 11:51:49 2007, Doug Preddy, Quench Recovery, Switched to series mode
|
| |