| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7545
|
Mon Oct 15 08:12:45 2012 |
Steve | Update | VAC | blank vac monitor | VME
crate blew its fuse and the fuse
housing is hard to access. |
|
|
7547
|
Mon Oct 15 13:07:51 2012 |
jamie | Update | VAC | vacuum VME crate broken, replaced, minor vacuum mayhem ensues | Steve and I managed to access the fuse
in the vacuum VME crate, but replacing it
did not bring it back up. We decided |
|
|
7549
|
Mon Oct 15 17:08:01 2012 |
Steve | Update | VAC | vacuum is back with some disabled valves |
|
|
|
7564
|
Wed Oct 17 08:04:31 2012 |
Steve | Update | VAC | Roughing pumps on for oil change | PR1, PR2 and RP3 turned on for warming
up for oil change. Oil changed with 3.2L
of MVT-19 |
|
|
7582
|
Fri Oct 19 16:45:39 2012 |
Steve | Update | VAC | vent has started |
|
|
|
7584
|
Fri Oct 19 19:26:42 2012 |
Jenne | Update | VAC | vent has started |
|
|
|
7587
|
Mon Oct 22 09:10:07 2012 |
Steve | Update | VAC | @750Torr |
|
|
|
7594
|
Tue Oct 23 08:45:00 2012 |
Steve | Update | VAC | vent day 3 |
|
|
|
7597
|
Tue Oct 23 16:18:03 2012 |
Steve | Update | VAC | Roughing pumps on for oil change |
|
|
|
7605
|
Wed Oct 24 09:15:12 2012 |
Steve | Update | VAC | vacuum rack 24V ps was current limited |
|
|
|
7669
|
Mon Nov 5 10:34:48 2012 |
Steve | Update | VAC | existing vacuum documents |
|
|
|
7696
|
Mon Nov 12 09:21:10 2012 |
Steve | Update | VAC | pumpdown has started | I'm looking for IOO steering mirror power
supplies. I found two so far: one at 1Y3
as Kepco + 75V and one at OMC_North |
|
|
7697
|
Mon Nov 12 16:52:03 2012 |
Steve | Update | VAC | pumpdown has completed | The pressure is CC1 3e-4 Torr at
8 hours of pumping. Status: vacuum
normal |
|
|
7703
|
Tue Nov 13 08:34:11 2012 |
Steve | Summary | VAC | pumpdown after 24days at atmosphere |
|
|
|
7753
|
Tue Nov 27 09:44:09 2012 |
Steve | Update | VAC | pumpdown at 15 days | It took 15 days to reach 1e-5 Torr
The RGA was turned on yesterday.
The rga scan plotting was not working. Den |
|
|
7849
|
Tue Dec 18 10:43:20 2012 |
Steve | Update | VAC | vent has completed | The 40m vacuum envelope is at atm
It took 4.5 hours at ~3 Torr/min speed. Atm1
|
|
|
7853
|
Tue Dec 18 16:37:40 2012 |
Steve | Update | VAC | last RGA scan before vent |
|
|
|
7856
|
Wed Dec 19 11:53:23 2012 |
Steve | Update | VAC | AC removed | Koji, Manasa, Jenne, Jamie, Bob and
Steve
Access connector removed this morning |
|
|
7914
|
Thu Jan 17 17:04:49 2013 |
Steve | Update | VAC | vac monitor screen changed | The COVAC_MONITOR.adl was changed. Ion
pump labeled as disconnected means: ion pump
controller power turned off and ion pump |
|
|
7936
|
Thu Jan 24 08:28:35 2013 |
Steve | Update | VAC | when to pumpdown ? | Reminder: I will be on vacation next week.
We would have to put the access connector
in tonight if I'm pumping down Friday, tomorrow. |
|
|
7939
|
Thu Jan 24 14:40:09 2013 |
Steve | Update | VAC | RGA backgroung | RGA background with VM2 open to Maglev
at day 37
|
|
|
8057
|
Mon Feb 11 16:16:27 2013 |
Steve | Update | VAC | 55 days at atmoshere | CP
Stat 100 sheet-covers were replaced
by clean ones on open chambers BS, ITMX, |
|
|
8106
|
Tue Feb 19 08:42:31 2013 |
Koji | Update | VAC | ETMX door open | [Steve, Yuta, Koji]
The ETMX heavy door was removed. |
|
|
8129
|
Thu Feb 21 15:21:07 2013 |
yuta | Update | VAC | all heavy doors on, started pumping down annulus | [Steve, Manasa, Jenne, Sendhil, Evan,
Yuta]
|
|
|
8131
|
Thu Feb 21 18:01:27 2013 |
Steve | Update | VAC | pumpdown at 230 Torr |
We are pumping down with RP1
& RP3 oily roughing pumps at 3 Torr/min |
|
|
8134
|
Thu Feb 21 21:12:42 2013 |
Koji | Update | VAC | pumpdown at 230 Torr | [Rana, Yuta, Koji]
21:05 at the pressure of 10torr
V3 closed. RV1 manually closed. RPs |
|
|
8135
|
Fri Feb 22 08:01:25 2013 |
Steve | Update | VAC | pumpdown continuous |
Pump
down is restarted after 10.5 hrs stop overnight. |
|
|
8136
|
Fri Feb 22 11:12:16 2013 |
Steve | Update | VAC | pumpdown completed | IFO P1 pressure is 1
mTorr. It is ready for high power light.
The Maglev took over the pumping |
|
|
8155
|
Mon Feb 25 08:22:03 2013 |
Steve | Update | VAC | pumpdown at day 4 | All normal, IFO pressure 1.5e-5 Torr
RGA is pumped by TP-3 in back ground
mode. |
|
|
8206
|
Fri Mar 1 14:50:36 2013 |
Steve | Update | VAC | pumpdown day 8 | Atm1, RGA background scan with TP3
pumping at day 7
Atm2, IFO CC1 = 1.1e-5 |
|
|
8231
|
Tue Mar 5 14:59:32 2013 |
Steve | HowTo | VAC | dry-forepump replaced | TP3 turbo pump's dry-foreline pump was
replaced.
How to do it: |
|
|
8238
|
Wed Mar 6 08:40:03 2013 |
Steve | Update | VAC | first scan of this pumpdown | Pumpdown 75 - Maglev - day 12
Precondition: 66 days at atm, installed
TIP-TILTs with coils that replaced |
|
|
8311
|
Tue Mar 19 17:00:14 2013 |
Steve | Update | VAC | large window quote of Cascade | Optical quality 6.5" OD window specs
and quotes for vacuum view ports and optical
table enclosure are on the 40m wiki_ Aux |
|
|
8664
|
Mon Jun 3 09:46:40 2013 |
Steve | Update | VAC | RGA scan at day 100 | Vacuum normal condition at pumdown
day 100
|
|
|
8847
|
Mon Jul 15 14:12:15 2013 |
Steve | Update | VAC | RGA scan at day 144 | Pumpdown 75, vacuum normal condition
at day 144
|
|
|
8904
|
Tue Jul 23 08:21:31 2013 |
Steve | Update | VAC | Vent has started |
Thanks for the good preparation.
IFO pressure P1=20 Torr |
|
|
8907
|
Tue Jul 23 14:00:03 2013 |
Steve | Update | VAC | the vent is completed | The 40m IFO has reached atmospher
in 5 hours. It is ready to open chamber condition.
The RGA is pumped with the maglev. |
|
|
8914
|
Tue Jul 23 22:55:13 2013 |
Jenne | Update | VAC | BS, ITMY doors to be opened in the morning | We will open the BS and ITMY doors first
thing tomorrow morning. I plan to try to
be in around 9 am. The first order of business |
|
|
8915
|
Wed Jul 24 10:35:41 2013 |
Steve | Update | VAC | BS, ITMY doors are removed |
|
|
|
8933
|
Mon Jul 29 16:04:40 2013 |
Steve | Update | VAC | AC removed | Manasa, Eric, Evan, Koji and Steve,
Access connector removed in order
to complete alignment. Light aluminum with |
|
|
8934
|
Mon Jul 29 16:15:13 2013 |
Koji | Update | VAC | AC removed | Prior to the access connector removal,
Manasa and I aligned the IFO mirrors.
The arms were locked and aligned by |
|
|
8946
|
Wed Jul 31 10:27:00 2013 |
Steve | Update | VAC | instrument grade air is discontinoued | We have been using Air Liquide Instrument
Grade Air for venting the 40m vacuum envelope.
It is no longer available. |
|
|
8963
|
Mon Aug 5 10:50:48 2013 |
Steve | Update | VAC | RGA background | RGA background at day 12 of this
vent . The maglev is pumping on the rga through
VM2 |
|
|
8970
|
Tue Aug 6 10:06:29 2013 |
Steve | Update | VAC | Pumpdown is at 500Torr | The pumpdown has started at 8:38am
Manasa was here to confirm good alignment
of the IFO |
|
|
8973
|
Tue Aug 6 16:45:31 2013 |
Steve | Update | VAC | Pumpdown is completed | IFO P1=1mT PSL shutter is opened
|
|
|
8976
|
Wed Aug 7 10:51:49 2013 |
Steve | Update | VAC | Pumpdown at 26hrs | Cold cathode gauge CC1 -h (horizontal)
just coming on 9.2e-5 Torr
P2 is the fore line pressure of the |
|
|
8978
|
Wed Aug 7 15:36:29 2013 |
Steve | Update | VAC | TP2 drypump replaced |
TP2's fore line - dry pump
replaced at performance level 600 mTorr after |
|
|
8984
|
Thu Aug 8 07:57:23 2013 |
Steve | Update | VAC | pumpdown at 48 hrs |
|
|
|
8985
|
Thu Aug 8 10:31:28 2013 |
Steve | Update | VAC | few reminders of this vent | 1, Vacuum envelope grounds must be
connected all times! After door removal
reconnect both cables immediately. |
|
|
9011
|
Wed Aug 14 08:24:20 2013 |
Steve | Update | VAC | pumpdown at day 8 |
|
|