| ID |
Date |
Author |
Operational Mode |
Subject |
Text |
 |
|
166
|
Thu Oct 5 14:53:54 2006 |
Doug Preddy | Start Up | Switched to series mode | |
|
|
165
|
Thu Oct 5 11:51:53 2006 |
Doug Preddy | Start Up | Adde 2 bottles UHP Helium | Valved off purifiers, but left LN2 on. |
|
|
164
|
Thu Oct 5 10:26:26 2006 |
Doug Preddy | Start Up | switched to parallel cold return | |
|
|
163
|
Wed Oct 4 18:10:18 2006 |
Willy Andersson | Start Up | Quick check on system | System in good // warm return mode, temps
coming down nicely. BCP2 cryopump
does not look too healthy, temperature is |
|
|
162
|
Wed Oct 4 07:29:04 2006 |
Doug Preddy | Start Up | Starting cool down | Started compressor yesterday with flow through
the purifier overnight.
Starting tubines this morning in parallel |
|
|
161
|
Thu Aug 17 19:45:27 2006 |
Willy Andersson | Quench Recovery | switch to series cooling | Temps of flow returning from solenoid flat
lined at about 10K.
Gradually closed CV155.
|
|
|
160
|
Thu Aug 17 08:04:44 2006 |
Doug Preddy | Quench Recovery | Solenoid tripped at about 3:00 this morning | restarting system.
Compressor would not start. Idid not see
anything that would not let it
|
|
|
159
|
Tue Aug 15 15:39:27 2006 |
Willy Andersson | Quench Recovery | switched to parallel cold return | Return flow temps from solenoid about 40K,
TIC121 at about 40K so switching
to //cold return.
|
|
|
158
|
Tue Aug 15 08:45:56 2006 |
Doug Preddy | Quench Recovery | restarted the compressor | Solenoid tripped off Sunday. Restarted compressor
and cool down of cold box. |
|
|
157
|
Thu Aug 10 20:26:09 2006 |
Willy Andersson | Quench Recovery | solenoid energized | Powerleads seem stable. |
|
|
156
|
Thu Aug 10 16:33:11 2006 |
Willy Andersson | Quench Recovery | Flow to solenoid tripped on powerlead temperature. | Power lead temps were drifting up, tried to
tweak TIC121 and HIC141 to
unstall powerlead flow. Got quench. Restarted |
|
|
155
|
Thu Aug 10 08:33:44 2006 |
Doug Preddy | Normal Running | Running low on helium | Temperture okay, but there are fluctuation
in the power leads. PIC229 is
trying to charge. The buffer tank pressure |
|
|
154
|
Wed Aug 9 07:50:49 2006 |
Doug Preddy | Quench Recovery | Switched to series mode. | Cool down continues. |
|
|
153
|
Wed Aug 9 06:59:43 2006 |
Willy Andersson | Quench Recovery | more // cold return stuff | About 21:00 last night the solenoid temps
had not changed much, pretty well
flat lined. I guess my reducing CV155 stalled |
|
|
152
|
Wed Aug 9 06:44:58 2006 |
Willy Andersson | Quench Recovery | // cold mode cooling continues. | After restarting flow to the solenoid yesterday
in // cold return mode
TIC121 just refused to go lower than about |
|
|
151
|
Tue Aug 8 07:27:49 2006 |
Doug Preddy | Quench Recovery | Solenoid Quench at about 6:00 this morning | No indication of problem. Turbines still running,
but no flow to solenoid.
Started flow. Solenoid ~20K. |
|
|
150
|
Sat Jul 29 09:38:06 2006 |
Doug Preddy | Quench Recovery | power leads cooled | opened power lead flow about 40 minutes ago.
~12K will let them stablize.
LHE level >20% |
|
|
149
|
Sat Jul 29 05:30:28 2006 |
Doug Preddy | Quench Recovery | switched to series mode | Temps bottomed out at ~16K. Switching to series
mode. |
|
|
148
|
Fri Jul 28 20:39:40 2006 |
Doug Preddy | Quench Recovery | Restarting refrigerator | Solenoid quenched at about 6:00 tonight.
I restarted the compressor, then the cold
box and turbines. When cold box
|
|
|
147
|
Sat Jul 22 06:34:14 2006 |
Experimentor | Quench Recovery | looking good | Donald Arseneau reporting.
It is looking pretty good, so I came back |
|