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Solenoid
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ID
Date
Author
Operational Mode
Subject
Text
4
Fri Apr 16 10:15:26 2004
Doug Preddy
Start Up
Changes to M9sol Vacuum PC
Yesterday and today there have been a number
of changes made to the M9
Vacuum control computer. The computer now
5
Mon Apr 19 15:06:49 2004
Doug Preddy
Start Up
Started turbines
Purifier run over the weekend. Both LN2 dewars
empty, but purifier cold.
Disabled CV211 and flowed all charge gas
6
Tue Apr 20 07:06:41 2004
Doug Preddy
Start Up
morning day 2
Temps in solenoid are equalling out. Increasing
PIC229 to 11 bar.
7
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.
8
Wed Apr 21 06:39:17 2004
Doug Preddy
Start Up
over night
Changed to parallel cold mode at 9:30.
At about 4:30 the city water chiller was
turned on. The air compressor had
9
Wed Apr 21 06:48:31 2004
Doug Preddy
Start Up
JT bypass closed
Closed cv155
10
Wed Apr 21 08:16:18 2004
Doug Preddy
Start Up
switch to series mode
Switched to series mode.
11
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
42
Thu Aug 19 10:28:32 2004
Doug Preddy
Start Up
after M9bv5 FIX
Over the last couple of days we replaced the
gate on the M9BV5 valve. The
old one had worn the teflon sliders on the
52
Mon Oct 4 09:16:29 2004
Doug Preddy
Start Up
Started turbines
Started flow to the turbimes with the solenoid
in parallel warm return.
53
Tue Oct 5 07:18:16 2004
Doug Preddy
Start Up
adjust compressor discharge pressure
adjusted compressor discharge pressure to
11 Bar
54
Wed Oct 6 07:57:01 2004
Doug Preddy
Start Up
parallel cold return
Switched to parallel cold return at 4:00 yesterday
afternoon.
6:30 this morning started closing cv155 as
55
Wed Oct 6 09:25:54 2004
Doug Preddy
Start Up
switch to series mode
switched to series mode
56
Thu Oct 7 13:33:20 2004
Doug Preddy
Start Up
turned off purifier
turned off purifier
58
Sun Oct 10 17:36:35 2004
Experimentor
Start Up
power leads
At 5:30 pm sundat, power lead temp is about
10.6K. script tool still
notworking
59
Mon Oct 11 03:56:14 2004
Experimentor
Start Up
cv142 valve
noticed that the lead temp rose to 24K over
the past 4 hours. had control
room personnle cycle the cv142 valve. temperature
60
Mon Oct 11 11:49:34 2004
Experimentor
Start Up
cv142 valve
noticed temp rise, which occured only about
5 hours after the
last "reset" .... the time between resets
61
Mon Oct 11 22:32:11 2004
Experimentor
Start Up
cv142 valve
temp of leads begins its exponential rise
again (caught it at 12K), approx
11 hours after last reset. this time asked
62
Tue Oct 12 02:05:31 2004
Experimentor
Start Up
cv142 valve
after only two hours since last lead cycling,
they warm up quickly.
ops cycles the valve, but more quickly this
63
Tue Oct 12 13:00:08 2004
Curtis Ballard
Start Up
cv142 valve
Curtis closes and opens slowly at about 11:00
am this morning. Wants to see
if that works better than the sudden on/off
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ELOG V2.9.2-2455