| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13175
|
Wed Aug 9 11:59:51 2017 |
Steve | Update | VAC | unintended pump down at vacuum normal | pd80b has reached Vac Normal. IFO pressure
0.5 mTorr
We need our vauum channels back |
|
|
13179
|
Wed Aug 9 16:34:46 2017 |
rana | Update | VAC | Vacuum Document recovered | Steve and I found the previous draft of
the 40m Vacuum Document. Someone in 2015
had browsed into the Docs history and then |
|
|
13186
|
Thu Aug 10 15:45:34 2017 |
Steve | Update | VAC | accidental vent to 17 Torr | Finally we got the cold cathode gauge working.
IFO pressure 7e-6 Torr-it, vacuum normal
valve configuration with all 4 ion pump gate |
|
|
13233
|
Mon Aug 21 14:53:32 2017 |
gautam | Update | VAC | RGA reset | [gautam, steve]
In the aftermath of the accidental
vent, it looks like the RGA was shutdown. |
|
|
13234
|
Mon Aug 21 16:35:48 2017 |
gautam | Update | VAC | UPS checkup | [steve, gautam]
At Rolf/Rich Abbott's request,
we performed a check of the UPS today. |
|
|
13245
|
Wed Aug 23 10:11:46 2017 |
Steve | Update | VAC | vacuum valve specifications | The V1
gate valve specs installed at 40m wiki
page. VAT model number 10846-UE44-0007 Our |
|
|
13260
|
Mon Aug 28 10:28:07 2017 |
Steve | Update | VAC | RGA scan 20 day after 17 Torr | The RGA was turned on 7 days ago.
It's 46 C now. The X-arm room
tem ~20 C |
|
|
13268
|
Tue Aug 29 15:35:19 2017 |
Steve | Update | VAC | vacuum pump specifications & manuals | RP1 and RP3 roughing pump manual of
Leybold D30A oily rotory pump
Fore pump of |
|
|
13321
|
Tue Sep 19 11:05:26 2017 |
Steve | Update | VAC | RGA scan at day 334 |
|
|
|
13403
|
Fri Oct 27 10:14:11 2017 |
Steve | Update | VAC | RGA scan at day 372 | Valve configuration: Vacuum normal
Note: Tp2 running at 75Krpm 0.25A
26C has a load high pitch sound today. |
|
|
13407
|
Mon Oct 30 10:09:41 2017 |
Steve | Update | VAC | TP2 failed | IFO pressure 1.2e-5 Torr at 9:30am
|
|
|
13409
|
Mon Nov 6 09:09:43 2017 |
Steve | Update | VAC | setting up new TP2 turbo | Our new Agilent Technology TwisTorr
84FS AG rack controller ( English Manual
pages 195-297 ) RS232/485, product |
|
|
13423
|
Fri Nov 10 08:52:21 2017 |
Steve | Update | VAC | TP3 drypump replaced | PSL shutter closed at 6e-6 Torr-it
The foreline pressure
of the drypump is 850 mTorr at 8,446 hrs |
|
|
13454
|
Sun Nov 26 19:38:40 2017 |
Steve | Update | VAC | TP3 drypump replaced again | The TP3 foreline pressure was 4.8 Torr,
50K rpm 0.54A and 31C........Maglev rotation
normal 560 Hz....... IFO pressure |
|
|
13459
|
Thu Nov 30 10:38:39 2017 |
Steve | Update | VAC | annuloses are not pumped | Annuloses are not pumped for 30 days, since
TP2 failed. IFO pressure 7e-6 Torr
it, Rga 2.6e-6 Torr |
|
|
13495
|
Tue Jan 2 15:43:35 2018 |
Steve | Update | VAC | pumpdown after power outage |
|
|
|
13588
|
Tue Jan 30 10:22:20 2018 |
Steve | Update | VAC | RGA scan at day 175 | pd80b rga scan at 175 day. IFO pressure
7.3e-6 Torr-it
Condition: vacuum normal, annuloses |
|
|
13615
|
Wed Feb 7 15:50:42 2018 |
Steve | Update | VAC | IFO pressure monitoring | Hornet cold cathode gauge analoge output
[ DSub9 pin 3 and 7 ] are wired to go ETMX
Acromag. It was reading 4.9V at 7.8e-6 Torr |
|
|
13637
|
Fri Feb 16 15:57:58 2018 |
Steve | Update | VAC | TP3 drypump replaced | The forline pressure of TP3 was 399 mTorr
It was replaced this morning at
TP3 controller 134,638hrs with the "failed |
|
|
13647
|
Wed Feb 21 17:20:32 2018 |
johannes | Update | VAC | Hornet gauge connected to DAQ. | I wired the six available BNC connectors
on the front panel of the new XEND slow DAQ
to physical Acromag channels. There were |
|
|
13653
|
Fri Feb 23 07:47:54 2018 |
Steve | Update | VAC | CC1 Hornet | We have the IFO pressure logged again!
Thanks Johannes and Gautam
This |
|
|
13664
|
Mon Mar 5 10:13:21 2018 |
gautam | Update | VAC | vacuum health | In Steve's absence, I've tried
to keep an eye on the health of the vacuum
system. From Attachment #1, the pressure |
|
|
13685
|
Fri Mar 16 09:36:56 2018 |
Steve | Update | VAC | RGA scan at day 511,218d | Pumpdown 80 at 511 days and pd80b at 218
days
Valve configuration: special |
|
|
13702
|
Mon Mar 26 09:25:18 2018 |
Steve | Update | VAC | VM1 opened | CC1 old MKS cold cathode gauge randomly
turns on- off. This makes software interlock
close VM1 to protect RGA So the closed |
|
|
13709
|
Tue Mar 27 08:58:21 2018 |
Steve | Update | VAC | VM1 opened.......scan fine |
|
|
|
13918
|
Wed Jun 6 10:02:52 2018 |
Steve | Update | VAC | RGA scan | |
|
|
13919
|
Wed Jun 6 10:44:52 2018 |
gautam | Update | VAC | Annulus pressure channels added to frames | [steve,
gautam]
We added the following channels |
|
|
14059
|
Thu Jul 12 16:18:22 2018 |
Steve | Update | VAC | Vent preparations | We are getting ready to vent.
|
|
|
14064
|
Fri Jul 13 10:54:55 2018 |
aaron | Update | VAC | Vent 80 | [aaron, steve]
Steve gave me a venting tutorial.
I'll record this in probably a bit more |
|
|
14066
|
Fri Jul 13 16:26:52 2018 |
Steve | Update | VAC | Vent 80 is completing... | Steve and Aaron,
6 hrs vent is reaching equlibrium
to room air. It took 3 and a half instrument |
|
|
14073
|
Mon Jul 16 15:07:19 2018 |
Koji | Summary | VAC | Oven C vent | [Steve Koji]
- Attachment1: Removed the thermal
cap. Checked the temperature of the oven. |
|
|
14074
|
Mon Jul 16 18:12:00 2018 |
Koji | Update | VAC | Adding a manual gate valve between TP1 and V1/VM2 | [Steve Koji]
We are in the process of adding
a manual gate valve between TP1 (Osaka Maglev) |
|
|
14079
|
Tue Jul 17 18:16:38 2018 |
Steve | Summary | VAC | pumpdown 81 at 6 hrs | Precondition: 4 days at atm.
Atm5
HEPA tent used during the vent |
6x |
|
14080
|
Tue Jul 17 22:25:41 2018 |
Koji | Summary | VAC | pumpdown 81 at 6 hrs | 10:20PM
Opened VM2 to pump down
the RGA section with TP1
Stopped |
|
|
14082
|
Wed Jul 18 12:49:08 2018 |
Steve | Summary | VAC | pumpdown 81 at 6 +4.5hrs | The manual gate valve scan was clean. Atm1
TP1 was pumping on it overnight.
|
|
|
14083
|
Wed Jul 18 17:36:50 2018 |
Steve | Summary | VAC | pumpdown 81 at 6 +9 hrs completed | IFO P1 6e-4 Torr, manual gate valve
is fully open
The annuloses will be pumped down |
|
|
14085
|
Thu Jul 19 01:56:25 2018 |
gautam | Summary | VAC | AUX pump shutdown | [koji,
gautam]
Per Steve's instructions, we |
|
|
14087
|
Thu Jul 19 11:01:03 2018 |
Steve | Summary | VAC | pd81 @ 2e-5 Torr | Cold cathode gauge just turned on. |
|
|
14088
|
Thu Jul 19 13:35:30 2018 |
Steve | Summary | VAC | annuloses pumped | Roughing down the annuloses required closing
V1 for 13 minutes
IFO is 2.2e-5 Torr |
|
|
14098
|
Mon Jul 23 09:58:52 2018 |
Steve | Summary | VAC | RGA scan at day 6 |
|
|
|
14137
|
Mon Aug 6 09:34:02 2018 |
Steve | Update | VAC | RGA scan at day 20 |
|
|
|
14167
|
Thu Aug 16 07:50:28 2018 |
Steve | Update | VAC | pumpdown 81 at day 30 |
|
|
|
14168
|
Thu Aug 16 14:48:14 2018 |
Steve | Update | VAC | why do we need a root pump? |
Basic Pump Throughput Concepts
What
is Pump Throughput?
The manufacturer |
6x |
|
14183
|
Fri Aug 24 10:51:23 2018 |
Steve | Update | VAC | pumpdown 81 at day 38 |
|
|
|
14189
|
Wed Aug 29 09:56:00 2018 |
Steve | Update | VAC | Maglev controller needs service | TP-1 Osaka maglev controller [
model TCO10M, ser V3F04J07 ]
needs maintenance. Alarm led on indicating |
|
|
14207
|
Fri Sep 21 16:51:43 2018 |
gautam | Update | VAC | c1vac1 is unresponsive | Steve pointed out that some of the vacuum
MEDM screen fields were reporting "NO
COMM". Koji confirmed that this is a |
|
|
14215
|
Mon Sep 24 15:06:10 2018 |
gautam | Update | VAC | c1vac1 reboot + TP1 controller replacement | [steve, gautam]
Following the procedure in this |
|
|
14217
|
Wed Sep 26 10:07:16 2018 |
Steve | Update | VAC | why reboot c1vac1 | Precondition: c1vac1 & c1vac2 all LED
warning lights green [ atm3 ], the only error
message is in the gauge readings NO COMM, |
|
|
14229
|
Thu Oct 4 08:25:50 2018 |
Steve | Update | VAC | rga scan pd81 at day 78 |
|
|
|
14244
|
Fri Oct 12 08:27:05 2018 |
Steve | Update | VAC | drypump | Gautam and Steve,
Our TP3 drypump seal is at 360
mT [0.25A load on small turbo] after |
|