| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1572
|
Sun May 10 13:41:17 2009 |
steve | Update | VAC | ETMY damping restored, VC1 opened | ETMY damping restored.
Cryo interlock closed VC1 ~2
days ago. P1 is 6.3 mTorr. Cryo temp 12K |
|
|
1593
|
Sun May 17 14:35:52 2009 |
Yoichi | Update | VAC | VC1 opened | I found the VC1 was closed and the pressure
was 4.5e-3 torr.
I tweaked the optical sensor (cryopump temperature), |
|
|
1601
|
Mon May 18 19:44:52 2009 |
rana, steve | Configuration | VAC | Cryo Pump turned off and valved off: 1 beer can only | I was seeing some excess noise in the ETMY
oplev yaw and so we turned off the cryo and
restarted c1vac2 to get the turbo pump channels |
|
|
1602
|
Mon May 18 20:16:20 2009 |
rana | Configuration | VAC | not it | There was essentially no change in the ETMY
oplev spectrum with the cryo off!
|
|
|
1604
|
Tue May 19 09:34:29 2009 |
steve | Configuration | VAC | IFO is not pumped & CRYO is being regenerated | Morning Vacuum condition: IFO is not being
pumped, P1 pressure is 1.8 mTorr and rising
(see P1 pressure plot of 100 min ).
|
|
|
1609
|
Tue May 19 16:18:45 2009 |
steve | Configuration | VAC | IFO pressure is 4.2e-7 Torr with CRYO pump | [quote]Morning Vacuum condition: IFO is not
being pumped, P1 pressure is 1.8 mTorr and
rising (see P1 pressure plot of 100 min ).
|
|
|
1610
|
Wed May 20 01:41:19 2009 |
pete | Update | VAC | cryopump probably not it | I found some neat signal analysis software
for my mac (http://www.faberacoustical.com/products/),
and took a spectrum of the ambient noise |
|
|
1671
|
Fri Jun 12 09:56:38 2009 |
steve | Configuration | VAC | new maglev installed | Joe and Steve
The retrofitted Osaka 390 was installed |
|
|
1672
|
Fri Jun 12 15:34:49 2009 |
steve | Configuration | VAC | maglev is running |
|
|
|
1673
|
Mon Jun 15 15:17:33 2009 |
josephb, Steve | Configuration | VAC | Vacuum control and monitor screens | We updated the vacuum control and monitor
screens (C0VAC_MONITOR.adl and C0VAC_CONTROL.adl).
We also updated the /cvs/cds/caltech/target/c1vac1/Vac.db |
|
|
1674
|
Mon Jun 15 16:31:36 2009 |
steve | Configuration | VAC | RGA is scanning new Maglev |
|
|
|
1677
|
Tue Jun 16 09:02:30 2009 |
steve | Configuration | VAC | new maglev RGA scan | The maglev fore line pressure is 3e-6 torr
at CC2 after 4 days of pumping. Varian turbo
V-70 is pumping on it through V4 and VM2 |
|
|
1690
|
Tue Jun 23 10:06:03 2009 |
steve | Update | VAC | new maglev RGA scan at day6 | The Maglev is running for 10 days with
V1 closed. The pressure at the RGA-region
is at 2e-9 torr on CC4 cold cathode |
|
|
1691
|
Tue Jun 23 15:19:42 2009 |
steve | Configuration | VAC | V1 is open |
|
|
|
1693
|
Wed Jun 24 09:21:19 2009 |
steve | Configuration | VAC | IFO RGA scan with Maglev & Cryo |
|
|
|
1701
|
Thu Jun 25 10:28:58 2009 |
steve | HowTo | VAC | Cryopump is regenerated | The Cryopump's VC1 valve to IFO was closed
yesterday.
The compressor
Helium pressure was 235 PSI. The cold head |
|
|
1716
|
Thu Jul 2 17:37:36 2009 |
steve | Update | VAC | V1 interlock test | Joe, Alberto and Steve
We tested gate valve V1 interlock
by : |
|
|
1763
|
Mon Jul 20 10:35:06 2009 |
steve | Update | VAC | UPS batteries replaced | APC Smart-UPS (uninterruptible power
supply) batteries RBC12 replaced at 1Y8 vacuum
rack. |
|
|
1840
|
Thu Aug 6 09:05:29 2009 |
steve | Update | VAC | large O-rings of vacuum envelope | The 40m-IFO vacuum envelope doors are sealed
with dual viton O-rings and they are pumped
through the annulos lines. |
|
|
1852
|
Fri Aug 7 09:50:57 2009 |
steve | Configuration | VAC | IFO pressure rose to 2.3 mTorr | IFO pressure was 2.3 mTorr this morning,
The Maglev's foreline valve
V4 was closed so P2 rose to 4 Torr. The Maglev |
|
|
1857
|
Fri Aug 7 16:11:11 2009 |
steve, rob | Configuration | VAC | IFO pressure rose to 2.3 mTorr |
|
|
|
1858
|
Fri Aug 7 16:14:57 2009 |
rob | Omnistructure | VAC | UPS failed | Steve, Rana, Ben, Jenne, Alberto, Rob
UPS in the vacuum rack failed this |
|
|
1863
|
Fri Aug 7 18:06:24 2009 |
rob | Omnistructure | VAC | opening V1 when PTP1 is broken | We've had a devil of a time getting V1
to open, due to the Interlock code.
|
|
|
1864
|
Fri Aug 7 19:34:40 2009 |
steve | Summary | VAC | UPS failed | The Maglev is running on single phase 220V
and that voltage was not interrupted.
TP1 was running undisturbed with V1 and V4 |
|
|
1865
|
Fri Aug 7 19:55:08 2009 |
steve | Summary | VAC | opening V1 when PTP1 is broken | The swapped in 307 convectron gauge controller
is very likely to have the RS232 connection
wired differently from the old one. |
|
|
1912
|
Sat Aug 15 18:57:48 2009 |
rana | Update | VAC | UPS failed | As Rob noted last Friday, the UPS which
powers the Vacuum rack failed. When we were
trying to move the plugs around to debug |
|
|
1937
|
Mon Aug 24 16:48:57 2009 |
steve | HowTo | VAC | new UPS installed |
|
|
|
1967
|
Fri Sep 4 16:09:26 2009 |
josephb | Summary | VAC | Rebooted RGA computer and reset RGA settings | Steve noticed the RGA was not working today.
It was powered on but no other lights were
lit. |
|
|
1974
|
Tue Sep 8 16:01:52 2009 |
steve | Configuration | VAC | RGA was separeted from IFO | The RGA isolation valve VM1 was closed
since Aug 24, 2009 I installed the
new UPS that time. |
|
|
2137
|
Fri Oct 23 09:13:45 2009 |
steve | Summary | VAC | RGA scan | Pump down #66 is 435 days old. RGA scan
is normal. New maglev is fine. New UPS is
in place but not hooked up to communicate. |
|
|
2360
|
Mon Dec 7 09:38:05 2009 |
Koji | Update | VAC | Vent started | Steve, Jenne, Koji
The PSL was blocked by the |
|
|
2386
|
Thu Dec 10 13:50:02 2009 |
Jenne | Update | VAC | All doors on, ready to pump | [Everybody: Alberto, Kiwamu, Joe,
Koji, Steve, Bob, Jenne]
The last heavy door was put on after |
|
|
2387
|
Thu Dec 10 15:18:55 2009 |
Jenne | Update | VAC | seisBLRMS | last 20 days - including the pounding from
next door |
|
|
2388
|
Thu Dec 10 16:51:35 2009 |
steve | Update | VAC | pumpdown will start tomorrow morning | The vacuum system is at 760 torr
All chambers with doors on and their annuloses
are pumped down. |
|
|
2394
|
Fri Dec 11 08:35:04 2009 |
steve | Configuration | VAC | pumpdown has started | Oplev positions before and after drag wiped
arm TMs as of yesterday. Slow-mode pumpdown
has started with 3/4 turn opened RV1 |
|
|
2397
|
Fri Dec 11 13:18:17 2009 |
Alberto | Configuration | VAC | pumpdown has started |
|
|
|
2399
|
Fri Dec 11 14:19:22 2009 |
Koji | Configuration | VAC | pumpdown has started | Wait,
Wait, Wait. |
|
|
2400
|
Fri Dec 11 15:21:40 2009 |
steve | Configuration | VAC | pumpdown#67 is completed |
|
|
|
2538
|
Thu Jan 21 11:08:30 2010 |
kiwamu, steve | Update | VAC | Dry Pump replacement | This morning I and Steve replaced
the dry fore pump of TP3, which is located
under the y-arm. |
|
|
2573
|
Fri Feb 5 11:01:49 2010 |
steve | Configuration | VAC | slow pumpdown valve | I have installed a slow start throttle
valve in front of V3 This spring loaded
valve will cut down on the flow at high pressures. |
|
|
2589
|
Thu Feb 11 15:53:59 2010 |
steve | Configuration | VAC | PSL output shutter is closed | Joe and Alex are working on the computers.
Our vacuum system is temporary "All
off" condition: meaning all valves are |
|
|
2592
|
Thu Feb 11 18:53:57 2010 |
steve | Configuration | VAC | VAC NORMAL is back |
|
|
|
2613
|
Thu Feb 18 15:39:16 2010 |
Koji and Steve | Configuration | VAC | valve condition: ALL OFF | As preparation for the upcoming planned
power outage we turned turbos, RGA off and
closed valves. |
|
|
2616
|
Fri Feb 19 10:18:19 2010 |
Jenne | Update | VAC | The P1 vac pressure is almost to 3mTorr | The Vac pressure measured at P1 is at 2.5mTorr.
I expect we'll hit 3mTorr sometime this afternoon,
at which point (according to Steve) the interlock |
|
|
2624
|
Mon Feb 22 11:38:05 2010 |
joe, jenne and steve | Configuration | VAC | vacuum is back to normal | Morning condition: vacuum rack power is
still off, no MEDM screen reading.....meaning
unknown vacuum pressure.We closed PSL shutter |
|
|
2631
|
Tue Feb 23 13:37:04 2010 |
kiwamu and steve | Configuration | VAC | venting the 40m vac envelope | Kiwamu and Steve have started venting
the 40m vacuum envelope.
Preparation: |
|
|
2633
|
Tue Feb 23 16:20:44 2010 |
steve | Configuration | VAC | outgassing + leak |
|
|
|
2635
|
Tue Feb 23 19:00:45 2010 |
kiwamu | Configuration | VAC | vent finished | The vent has been
finished. |
|
|
2636
|
Tue Feb 23 19:07:43 2010 |
kiwamu and steve | Configuration | VAC | vent is completed |
|
|
|
2644
|
Fri Feb 26 15:32:13 2010 |
steve | Configuration | VAC | preparation for power outage: vacuum all off | There is a planned power outage tomorrow,
Saturday from 7am till midnight.
I vented all annulies and switched |
|