M9sol Logbooks Solenoid Daily log
  Solenoid logbook, Page 12 of 15  ELOG logo
Entry  Wed May 5 23:57:38 2004, Willy Andersson, Quench Recovery, Powerleads warming up again. may5_04_1800.BMP
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.
Entry  Sun Nov 28 10:15:18 2004, Willy Andersson, Quench Recovery, Powerlead quench ? 
Got page very early this morning. Couldn't come in til 08:30. System was 
in idle running mode and someone had reset the QRL panel so my guess is 
that the solenoid tripped on powerlead overtemp. HIC142 was not fully open 
Entry  Thu Oct 26 04:27:31 2006, Willy Andersson, Quench Recovery, Powerlead overtemp 
02:30 this morning got page from operations.
Looked at system online, appears that there was a powerlead overtemp
that caused the quench. Compressor still running. After arriving to 
Entry  Thu Nov 4 13:33:49 2004, Doug Preddy, Normal Running, Power supply problems 
Last night the power supply was ramping up at a very slow rate. This 
morning it was energized,but with no current even though the limit was set 
to 500 amps. Klaus R. found the pot. that set the current limit was bad. 
Entry  Mon Apr 26 08:12:30 2004, Doug Preddy, Quench Recovery, Power leads flow 
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.
Entry  Tue Apr 27 09:03:18 2004, Doug Preddy, Normal Running, Power leads 
Power leads are being monitored with the strip tool graphs. I saw the temps 
go from having a ripple to almost no ripple, but starting to increase in 
temperature. I also noticed that the flow had dropped to 200 mm. I power 
Entry  Mon Oct 25 15:44:15 2004, Doug Preddy, Normal Running, Power lead temps starting to ripple 
Power lead temps starting to ripple at a 1.5min period. PL flows are 
both>250 mm.
Entry  Sun Aug 29 14:39:19 2004, Doug Preddy, Normal Running, Power lead ripple 
The LHe in and PL-neg temps have been building up a ripple over the last 
few days. Curtis cycled HIC142 Friday evening at about 5:00. I just had 
the Main control room operator (Peter) cycle them again. The ripples died 
Entry  Thu Jul 5 03:04:50 2007, Doug Preddy, Normal Running, Power lead problems 
The power leads temps are starting to cycle again. Earlier today M9 
experimentor cycled HIC142 to stablize the oscillations. They started 
again early this morning, so cycled HIC142 again. Oscillations died back, 
Entry  Wed Aug 25 07:47:05 2004, Doug Preddy, Normal Running, Power lead flow 
The power lead flows had dropped to 210 mm this morning. I increased HIC142 
from 0.8 to 0.83. The flows are back to <250 mm and the temps are back to 
LHe in-10.8, PL-Pos-11.1, PL-Neg-8.9
Entry  Tue Jun 14 18:48:14 2005, Experimentor, Normal Running, Power bump at 18:40 
Solenoid tripped on a power bump at 18:40 Tuesday
-- Donald Arseneau
Entry  Mon Mar 5 14:59:41 2007, Doug Preddy, Maintenance, Password 
On the weekend someone used this log to send spam messages. I have 
installed a password for the write privilege. Please contact me at 6399 
for the password.
Entry  Tue Oct 2 13:02:37 2007, Doug Preddy, Normal Running, PLC problems 
While downloading new code for 2A PLC the M9 and M15 vacuum systems were 
shut off. This is due to the two systems piggybacking onto the 2A PLC.
When M9 Epics came back up there was no controls. Eventually I reset the 
Entry  Tue Sep 25 07:34:04 2007, Doug Preddy, Start Up, PIC229 to 11 bar 
adjusted turbine speeds and HIC104 to maintain their values.
Entry  Tue Apr 20 07:33:03 2004, Doug Preddy, Start Up, PIC229 at 11bar 
PIC229 at 11 bar. Changed strip tool to 15 sec increments.
Entry  Thu Jul 20 11:01:09 2006, Willy Andersson, Quench Recovery, Opened up warm return valves CV151 and CV153 
Mu2 pressure was just about at trip point due to trapped volume of helium 
warming. So opened up warm returns to bleed off pressure and prevent it 
from rising.
Entry  Fri Jul 21 17:18:19 2006, Willy Andersson, Quench Recovery, Opened HIC142 fully open 
Power leads have flatlined but still building LHe level.
Entry  Mon Dec 3 14:59:58 2007, Doug Preddy, Quench Recovery, Not really a quench recovery, But... 
Not really a quench recovery, but...I wanted to send this out via e-mail. 
The contactor for the compressor building fan failed recently. Randy is 
looking after it, but parts will have to be ordered. The big door should 
Entry  Wed Sep 19 20:53:18 2007, Doug Preddy, Maintenance, More diff pump news 
Cold box pumped out to ~ 190 mTorr overnight.Leak checked the pump again. 
Still leaks at dip stick.Tried resetting the o-ring on the dip stick. It 
still leaks baddd!!!
Entry  Wed Nov 24 07:28:30 2004, Other, , Mission Impossible 

ELOG V2.9.2-2455