| ID |
Date |
Author |
Operational Mode |
Subject |
Text |
 |
|
64
|
Wed Oct 13 08:17:00 2004 |
Experimentor | Start Up | cycling 142 when temp hit 10.68 | I tried cycling the valve twice -- at about
11:30 and again around 1:00,
trying both the buttons and the dial -- but |
|
|
67
|
Sun Oct 17 04:26:29 2004 |
Other | Start Up | cycling 142 when temp hit 10.68 | > I tried cycling the valve twice -- at about
11:30 and again around 1:00,
> trying both the buttons and the dial -- |
|
|
212
|
Tue Jul 31 07:53:57 2007 |
Kevin Trithardt | Normal Running | cycled power leads | got a page for the power lead temp
came down and cycled the power leads.. did
not seem to make a difference..
|
|
|
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 |
|
|
170
|
Sun Oct 15 07:09:41 2006 |
Other | Normal Running | cryopump bcp2 trip | Donald Arseneau reporting
Not really solenoid realated, but FYI...
|
|
|
98
|
Thu Jun 2 09:16:40 2005 |
Doug Preddy | Quench Recovery | continuing to cool | See screen grab |
|
|
50
|
Mon Sep 13 13:56:06 2004 |
Doug Preddy | Shut Down | compressor off | compressor off |
|
|
141
|
Thu Jul 20 13:27:21 2006 |
Willy Andersson | Quench Recovery | cold return mode continues... | cr_c1 and cr_12 are both at about 45K and
heading slowly down, so the
gamble of going to // cold return worked. |
|
|
142
|
Thu Jul 20 13:34:26 2006 |
Willy Andersson | Quench Recovery | cold return mode continues... | Even though cr_c1 and cr_c12 have begun to
tick down, cr_c7 and cr_c6 are
actually ticking up. This is probably a wave |
|
|
218
|
Tue Sep 18 18:48:11 2007 |
Curtis Ballard | Maintenance | cold box leak check | The leak check of the cold box diff pump fittings.
Found a leak at the
base of the diff pump on the tee that is |
|
|
252
|
Fri Jul 25 21:48:15 2008 |
Doug Preddy | Quench Recovery | another quench | System was stable and solenoid ramped up at
4:00 today. At about 7:30 it tripped off
again. I came in and restarted the compressor |
|
|
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 |
|
|
53
|
Tue Oct 5 07:18:16 2004 |
Doug Preddy | Start Up | adjust compressor discharge pressure | adjusted compressor discharge pressure to
11 Bar |
|
|
88
|
Wed Dec 1 12:55:56 2004 |
Doug Preddy | Normal Running | added one bottle helium gas | buffer tank pressure is up to 6.5 psi. |
|
|
201
|
Tue Jun 12 12:48:25 2007 |
Doug Preddy | Maintenance | added one bottle UHP helium to system | |
|
|
12
|
Thu Apr 22 10:39:16 2004 |
Doug Preddy | Normal Running | Yesterday | Added two bottles of UHP helium to buffer
tank.
Had no liquifation rate, so optimized Ti121 |
|