| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16412
|
Tue Oct 19 10:59:09 2021 |
Koji | Update | VAC | Vent Started / Completed | [Chub, Jordan, Yehonathan, Anchal,
Koji]
North door of the BS chamber opened |
|
|
16413
|
Tue Oct 19 11:30:39 2021 |
Koji | Update | VAC | How to vent TP1 | I learned that TP1 was vented through the
RGA room in the past. This can be done by
opening VM2 and a manual valve ("needle |
|
|
16418
|
Wed Oct 20 15:58:27 2021 |
Koji | Update | VAC | How to vent TP1 | Probably the hard disk of c0rga is dead.
I'll follow up in this elog later today.
Looking at the log in /opt/rtcds/caltech/c1/scripts/RGA/logs |
|
|
16490
|
Mon Dec 6 14:26:52 2021 |
Koji | Update | VAC | Pumping down the RGA section | Jordan reported that the RGA section needs
to be pumped down to allow the analyzer to
run at sufficiently low pressure (P<1e-4 |
|
|
16493
|
Tue Dec 7 13:12:50 2021 |
Koji | Update | VAC | Pumping down the RGA section | So that Jordan can run the RGA scan this
afternoon, I ran TP3 and started pumping
down the RGA section. |
|
|
16494
|
Wed Dec 8 10:14:43 2021 |
Jordan | Update | VAC | Pumping down the RGA section | After an overnight pumpdown/RGA warm up,
I took a 100 amu scan of the RGA volume and
subsequent pumping line. Attached is a screenshot |
|
|
16501
|
Fri Dec 10 19:22:01 2021 |
Koji | Update | VAC | Pumping down the RGA section | The scan result was ~x10 higher than the
previously reported scan on 2020/9/15 (https://nodus.ligo.caltech.edu:8081/40m/15570), |
|
|
16508
|
Wed Dec 15 15:06:08 2021 |
Jordan | Update | VAC | Vacuum Feedthru Install | Jordan, Chub
We installed the 4x DB25 feedthru
flange on the North-West port of ITMX chamber |
|
|
16529
|
Tue Dec 21 16:35:39 2021 |
Koji | Update | VAC | ITMX NW feedthru (LO1-1) connector pin bent | I've received a report that a pin of
an ITMX NW feedthru connector was bent. (Attachment
1) |
|
|
16634
|
Mon Jan 31 10:39:19 2022 |
Jordan | Update | VAC | TP1 and Manual Gate Valve Removal | Jordan, Chub
Today, Chub and I removed TP1 and
the failed manual gate valve off of the pumping |
|
|
16643
|
Thu Feb 3 10:25:59 2022 |
Jordan | Update | VAC | TP1 and Manual Gate Valve Install | Jordan, Chub
Chub and I installed the new manual
gate valve (Nor-Cal GVM-6002-CF-K79) and |
|
|
16682
|
Sat Feb 26 01:01:40 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | I will make a detailed elog later today
giving a detailed outline of the connection from
the Agilent gauge controller to the vacuum |
|
|
16683
|
Sat Feb 26 15:45:14 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | I have attached a flow diagram of my understanding
of how the gauges are connected to the network.
Earlier today, I connected the |
|
|
16688
|
Mon Feb 28 19:15:10 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | I decided to create an independent service
for the XGS data readout so we can get this
to work first before trying to integrate |
|
|
16691
|
Tue Mar 1 20:38:49 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | During my investigation, I inadvertently
overwrote the serial port configuration for
the connected devices. So I am now working |
|
|
16692
|
Wed Mar 2 11:50:39 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Here is the IOLAN SDS TCP socket setting
and the USBserial setting for comparison.
I have also included the python |
|
|
16693
|
Wed Mar 2 12:40:08 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Connector Test:
A quick test to rule out any issue
with the Ethernet to Serial adapter was done |
6x |
|
16701
|
Fri Mar 4 18:12:44 2022 |
Koji | Update | VAC | RGA pumping down | 1. Jordan reported that the newly installed
Pirani gauge for P2 shows 850Torr while PTP2
show 680 Torr. Because of this, the vacuum |
|
|
16704
|
Sun Mar 6 18:14:45 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Following repeated failure to establish
communication between c1vac and the XGS600
controller via Perle IOLAN serial device |
|
|
16706
|
Mon Mar 7 13:53:40 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | So it appears that my deduction from
the pictures of needing a cable swap was
correct, however, it turns out that the installed |
|
|
16707
|
Mon Mar 7 14:52:34 2022 |
Koji | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Great trouble shoot!
> I guess, the only remaining
issue now is the incorrect atmospheric |
|
|
16713
|
Tue Mar 8 12:08:47 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | OMG, it worked! It was indeed a calibration
issue and all I had to do was press the "OK"
button after selecting the "CAL" |
|
|
16717
|
Wed Mar 9 10:23:28 2022 |
Jordan | Update | VAC | Leak Testing of New Manual Gate Valve - Attempt #1 | Jordan, Chub, Paco
Chub and I went into the lab this
morning to leak check the new gate valve |
|
|
16721
|
Thu Mar 10 09:39:59 2022 |
Jordan | Update | VAC | Leak Testing of New Manual Gate Valve - Attempt #2 | This morning Chub and I leak checked the
manual gate valve with the RGA and helium.
There was no change in the helium partial |
|
|
16747
|
Tue Mar 29 15:07:11 2022 |
Tega | Summary | VAC | Opening of MC and ETM chambers | [Anchal, Chub, Ian, Paco, Tega]
Today, we opened the MC chamber,
ETMX chamber and ETMY chamber. |
|
|
16769
|
Mon Apr 11 11:00:30 2022 |
Jancarlo | Update | VAC | C1VAC Reboot and Nitrogen tanks | [Paco, JC, Ian, Jordan, Chub]
Checking in the morning, I walked
over to the Nitrogen tanks to check the levels. |
|
|
16772
|
Tue Apr 12 09:05:21 2022 |
Jordan | Update | VAC | New Pressure Gauge Install/Pump Spool Vent | Today, Tega and I would like to vent the
pump spool an dinstall the new FRG-400 Agilent
Pressure Gauges (per elog 15703). The attached |
6x |
|
16773
|
Wed Apr 13 12:50:07 2022 |
Tega | Update | VAC | New Pressure Gauge Install/Pump Spool Vent | [Jordan, JC, Tega]
We have installed all the FRGs
and updated the VAC medm screens to display |
|
|
16777
|
Thu Apr 14 09:04:30 2022 |
Jordan | Update | VAC | RGA Volume RGA Scans | Prior to venting the RGA volume on Tuesday
(4/12/2022) I took an RGA scan of the volume
to be vented (RGA+TP1 volume+Manual Gate |
|
|
16794
|
Thu Apr 21 11:31:35 2022 |
JC | Update | VAC | Gauges P3/P4 | [Jordan, JC]
It was brought to attention during
yesterday's meeting that the pressures |
|
|
16796
|
Thu Apr 21 16:36:56 2022 |
Tega | Update | VAC | cleanup work for vacuum git repo | git repo - https://git.ligo.org/40m/vac
Finally incorporated the FRGs into
the main modbusIOC service and everything |
|
|
16806
|
Fri Apr 22 14:14:33 2022 |
Jordan | Update | VAC | TP3 Forepump tip seal replacement | Jordan, JC
While the pumpspool is vented,
I thought it would be a convenient time to |
|
|
16820
|
Fri Apr 29 08:34:40 2022 |
JC | Update | VAC | RGA Pump Down | Jordan and I, in order to start pumpig
down the RGA Volume, we began by opening
V7 and VM. Afterwards, we started RP1 and |
|
|
16822
|
Mon May 2 10:00:34 2022 |
Jordan | Update | VAC | TP3 Forepump tip seal replacement | [JC, Jordan]
Jordan recieved the new tip seal
Friday afternoon and I continued the replacement |
|
|
16825
|
Tue May 3 13:18:47 2022 |
JC | Update | VAC | RGA Pump Down | Jordan, Tega, JC
Issue has been resolved. Breaker
on RP1 was tripped so the RP1 button was |
|
|
16867
|
Fri May 20 12:42:23 2022 |
Tega | Update | VAC | Door installation on the end stations | [JC, Tega, Chub]
Today we installed the 200 lbs
doors on the end station chambers. |
|
|
16870
|
Tue May 24 10:37:09 2022 |
Tega | Update | VAC | added FRG channels to slow channel ini file | [Vacuum gauge sensors]
Paco informed me that the FRG sensor
EPICS channels are not available on dataviewer, |
|
|
16871
|
Tue May 24 11:04:53 2022 |
JC | Update | VAC | Beginning Pumpdown | [JC, Jordan, Paco, Chub]
We began with the pumpdown this
morning. We started with the annulus volume |
|
|
16900
|
Wed Jun 8 16:03:12 2022 |
Koji | Update | VAC | Power Outage 220608: Vacuum Recovery | === Observation ===
TP1/2/3 failed. AUX RP
did not survive the power outage (of course)
=== |
|
|
16916
|
Wed Jun 15 07:26:35 2022 |
JC | Update | VAC | Beginning Pumpdown | [Jordan, JC]
Jordan and I went in to retore
the Vacuum System back to it's original |
|
|
16980
|
Fri Jul 8 14:03:33 2022 |
JC | HowTo | VAC | Vacuum Preparation for Power Shutdown | [Koji, JC]
Koji and I have prepared the vacuum
system for the power outage on Saturday. |
|
|
16985
|
Mon Jul 11 15:26:12 2022 |
JC | HowTo | VAC | Startup after Power Outage | [Koji, Jc]
Koji and I began starting that
Vacuum system up. |
|
|
16986
|
Mon Jul 11 17:25:43 2022 |
Tega | Update | VAC | fixed obsolete reference bug in serial_XGS600 service | Koji noticed that the FRG sensors were
not updating due to reference to an
obsolete modbusIOC_XGS service, which was |
|
|
16987
|
Mon Jul 11 17:41:52 2022 |
Koji | HowTo | VAC | Startup after Power Outage | - Once the FRG gauge readings are back
(see next elog by Tega), I could open V1
to pump down the main vacuum manifold. |
|
|
17154
|
Fri Sep 23 10:05:38 2022 |
JC | Update | VAC | N2 Interlocks triggered | [Chub, Anchal, Tega, JC]
After replacing an empty tank this
morning, I heard a hissing sound coming from |
|
|
17283
|
Fri Nov 18 09:00:27 2022 |
JC | Update | VAC | Pressure Gauge Information | I bought the spare Full-Range Pirani Gauge
a while ago and realized that I never logged
this. The Pirani Gauges we are using is described |
|
|
17307
|
Wed Nov 23 17:21:44 2022 |
JC | Update | VAC | Interlocks may have been tripped due to N2 pressure loss | [Paco, JC]
While changing out one of the N2
tanks today, one of the fitting stripped. |
|
|
17312
|
Fri Nov 25 12:15:46 2022 |
Anchal | Update | VAC | Vacuum Gate valves restored | I came today to find that PSL shutter was
closed. I orginially thought some shimmer
obersvations are underway in the quiet state. |
|
|
4274
|
Fri Feb 11 16:43:09 2011 |
steve | Update | VIDEO | MC1 & 3 video monitor | I set up video monitoring of MC1 and MC3 |
|
|
4314
|
Thu Feb 17 13:20:06 2011 |
Suresh | Update | VIDEO | Some more labels | [Larisa, Kiwamu, Steve and Suresh]
We continued the labeling |
|