| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
11292
|
Fri May 15 16:18:28 2015 |
Steve | Update | VAC | Vac Operation Guide | Vacuum
Operation Guide is up loaded into the
40m-wiki. This is an old master copy. Not |
|
|
11352
|
Wed Jun 10 15:54:14 2015 |
Steve | Update | VAC | Vacuum comp. rebooted | Koji and Steve succeded rebooting C1vac1,
C1vac2 and pressure reading is working now
More tomorrow ......... |
|
|
11353
|
Thu Jun 11 19:40:59 2015 |
Koji | Update | VAC | Vacuum comp. rebooted | The serial connections to the vacuum gauges
were recovered by rebooting c1vac1 and c1vac2.
Steve claimed that the vacuum screen |
|
|
11354
|
Fri Jun 12 08:40:17 2015 |
Steve | Update | VAC | Vacuum comp. rebooted | Koji and Steve,
One computer expert and one vacuum
expert required. |
|
|
11387
|
Wed Jul 1 10:01:25 2015 |
Steve | Update | VAC | RGA scan pd78 day 275 |
|
|
|
11483
|
Thu Aug 6 09:16:57 2015 |
Steve | Update | VAC | Chiara gets new Ethernet card |
Yesterday we did put the vacuum
system into
|
|
|
11593
|
Mon Sep 14 10:41:03 2015 |
Steve | Update | VAC | TP2 dry pump replaced | TP2 dry fore pump sn PLE10082 was replaced
at pressure 717 mTorr, TP2 50K rpm
0.33A @ 112,677 hrs |
|
|
11625
|
Mon Sep 21 11:12:14 2015 |
Steve | Update | VAC | cold cathode is flaky | CC4 cold cathode gauge jump triggered interlock
to close VM1 valve to protect the RGA.
The IFO pressure is 1e-5 Torr |
|
|
11633
|
Tue Sep 22 08:58:38 2015 |
Steve | Update | VAC | cold cathode is flaky | The cold cathode gauge is back to normal.
cc4 is the last gauge is "functioning"
MKS is not responding. The spare |
|
|
11644
|
Fri Sep 25 17:00:38 2015 |
Steve | Update | VAC | cold cathode is flaky | The IFO pressure is estimated ~1E-6 Torr
with modified Vac normal valve configuration.
CC4 is in a jumping mode between |
|
|
11666
|
Mon Oct 5 10:11:35 2015 |
Steve | Update | VAC | RGA scan pd78 day 386 | RGA background scan.
The IFO is closed off from RGA
with VM1 |
|
|
11678
|
Fri Oct 9 11:41:09 2015 |
ericq | Update | VAC | N2 Pressure fell | At 10:02AM, the N2 Pressure fell below
60 PSI. The watch script saw this happen,
but I did not recieve the email it is supposed |
|
|
11695
|
Fri Oct 16 18:27:52 2015 |
Steve | Update | VAC | vacuum normal condition | Vacuum normal configuration with VM1-closed,
VM2-open valve positions. Power load normal
24V 0.2A |
|
|
11697
|
Mon Oct 19 11:20:34 2015 |
gautam | Update | VAC | RGA scan reset | Steve pointed out that in the aftermath
of the Nitrogen running out a couple of times
last week, the RGA had shut itself off thinking |
|
|
11703
|
Tue Oct 20 16:27:04 2015 |
ericq | Update | VAC | vacuum VME machines rebooted | [ericq, Gautam, Steve]
Following roughly the same procedure
as ELOG |
|
|
11705
|
Wed Oct 21 10:03:15 2015 |
Steve | Update | VAC | after running out of N2 |
|
|
|
11706
|
Wed Oct 21 15:42:56 2015 |
Steve | Update | VAC | vacuum gauge check | Convectron gauge check:
Brand new 10 years old convectron
gauge at atm was swapped into the place of |
|
|
11707
|
Thu Oct 22 08:52:04 2015 |
Steve | Update | VAC | clean RGA scan after sweaty Maglev | Clean comparable scan at vacuum normal.
There was no backstreaming. |
|
|
11719
|
Tue Oct 27 10:08:12 2015 |
Steve | Update | VAC | CC vacuum gauges | CC1 and CC2 are working again. Why did
they start working again ?
|
|
|
11832
|
Tue Dec 1 16:55:04 2015 |
Steve | Update | VAC | Dataviewer fixed | Q adjusted the Dataviewer so it is not
chopping of data any more. Thanks.
|
|
|
11858
|
Mon Dec 7 11:17:51 2015 |
Steve | Update | VAC | noisy RGA scan at day 433 |
|
|
|
11863
|
Tue Dec 8 15:40:48 2015 |
Steve | Update | VAC | glitchy RGA scan at day 434 | The noise floor of the Rga scan is glitching
less today
|
|
|
11866
|
Wed Dec 9 11:25:55 2015 |
Steve | Update | VAC | normal RGA scan at day 435-436 | Glitches are gone. Rga scan is good
|
|
|
11960
|
Fri Jan 29 09:59:23 2016 |
Steve | Update | VAC | vacuum control upgrade | Rana stated yesterday that there will be
a vacuum control update in the close future.
Witnesses : Rich, Chris and Dave |
|
|
11996
|
Wed Feb 17 09:05:07 2016 |
Steve | Update | VAC | forepump replaced | TP3 drypump replaced after 10,344 hrs at
750 mTorr foreline pressure.
The foreline pressure is 13 mTorr |
|
|
12014
|
Tue Mar 1 09:37:15 2016 |
steve | Update | VAC | vac rack UPS batteries replaced | Amstron batteries replaced after 11 months
with SP-12-5.5HR, 2 years warranty
from replaceUPSbattery.com |
|
|
12086
|
Thu Apr 21 15:12:38 2016 |
Steve | Update | VAC | RGA is not working |
|
|
|
12115
|
Wed May 11 16:39:01 2016 |
ericq | Update | VAC | c0rga alive, output wonky |
|
|
|
12116
|
Thu May 12 14:29:58 2016 |
gautam | Update | VAC | RGA back up and running | It looks like the hardware reset did the
trick. Previously, I had just tried ssh-ing
into c0rga and rebooting it. At the time, |
|
|
12117
|
Sun May 15 19:48:08 2016 |
Steve | Update | VAC | run out of N2 | 3-4 hrs ago we run out of nitrogen. We
are back to Vacuum Normal
|
|
|
12119
|
Tue May 17 14:46:51 2016 |
Steve | Update | VAC | RGA scan at day 595 | We have good RGA scan now. There was no
scan for 3 months. |
|
|
12174
|
Tue Jun 14 10:13:34 2016 |
Steve | Update | VAC | temporary N2 supply line | The drill room floor will be retiled Thursday,
June 16. Temporary nitrogen line set up will
allow emptying the hole area. |
|
|
12195
|
Fri Jun 17 15:22:31 2016 |
gautam | Update | VAC | N2 supply line restored after retiling |
|
|
|
12237
|
Fri Jul 1 09:20:44 2016 |
Steve | Update | VAC | vent 78 | VENT
OBJECTIVES:
1, Fix ETMX sus "jump issue" |
|
|
12238
|
Fri Jul 1 15:48:10 2016 |
Steve | Update | VAC | vent 78 at 710 Torr | I just disconnected the 6th instrument
grade air cylinder from the vacuum envelope
at 720 Torr. Now it will reach equilibrium |
|
|
12248
|
Wed Jul 6 08:34:00 2016 |
Steve | Update | VAC | RGA scan at day 639 | The last RGA scan of this pumpdown 78
Pressure plot of 640 days long
pd 78 |
|
|
12250
|
Wed Jul 6 10:58:07 2016 |
Steve | Update | VAC | vent 78 valve configuration | Vacuum Status: Chamber Open
All chamber annuloses are vented.
Vac Monitor screen is not communicating with |
|
|
12293
|
Tue Jul 12 18:13:19 2016 |
Koji | Update | VAC | N2 bottle replaced | Gautam, Koji
We replaced the right N2 bottle
as it was empty. |
|
|
12314
|
Wed Jul 20 11:39:07 2016 |
Steve | Update | VAC | vent 78 day 20 | RGA background scan
|
|
|
12337
|
Tue Jul 26 14:24:38 2016 |
Koji | Summary | VAC | Purge compressed air system at LHO | I've visited the purge clean
air system at LHO Yarm mid-station with John
Worden. |
12x |
|
12338
|
Tue Jul 26 16:01:32 2016 |
Steve | Summary | VAC | Purge compressed air system | Thanks for checking this out Koji
The builder in 1996 was Process
System International, Inc ( Westborough, |
|
|
12339
|
Tue Jul 26 17:41:59 2016 |
Koji | Summary | VAC | Purge compressed air system | We have no number for the CFM without calculation.
We can't assume a random number like
10-15 |
|
|
12483
|
Mon Sep 12 17:54:24 2016 |
Steve | Update | VAC | pumpdown 79 | We are pumping down. The annuloses
are below 10 mTorr
The vacuum gauges are not communicating |
|
|
12487
|
Tue Sep 13 16:16:28 2016 |
Chris | Omnistructure | VAC | vacuum interlock bypassed | (Steve, Chris)
The pumpdown had stalled because
of some ancient vacuum interlock code that |
|
|
12488
|
Tue Sep 13 17:47:04 2016 |
Steve | Update | VAC | pumpdown 79 completed | P1 IFO pressure is 1 mTorr, valve configuration: vacuum normal,
annulosses are pumped, RGA is off, not pumped. |
|
|
12492
|
Wed Sep 14 09:44:09 2016 |
Steve | Update | VAC | pumpdown 79 completed | The pumpdown started at
9-12-2016
The IFO is at 5e-5 Torr vacuum |
|
|
12496
|
Thu Sep 15 10:36:32 2016 |
Steve | Update | VAC | pumpdown 79 day 3 | IFO pressure 3.7e-5 Torr at new cold cathode
InstruTech - Hornet
New |
|
|
12525
|
Fri Sep 30 10:37:57 2016 |
Steve | Update | VAC | vacuum VME machines rebooted | [ Gautam and Steve ]
c1vac1 and c1vac2 were rebooted
and the gauges are communicating now. V1, |
|
|
12530
|
Tue Oct 4 11:02:31 2016 |
Steve | Update | VAC | RGA is out of order | The last good rga scan at vent 78
day 38
|
|
|
12537
|
Fri Oct 7 10:29:57 2016 |
Steve | Update | VAC | RGA removed | The RGA is removed for repaire. It's
volume at atmophere and sealed.. P4 reading
of 38 Torr is not correct. |
|