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Begin pumping XBM, BSC7 and BSC8 annulus volumes

PT180B not working -> fuse in rack is OK -> will fix later

QDP80 at X-mid started running hot as of last week sometime? -> Coincides in time with switching over to auxilary chilled water circulating pump.  Particulate strainer in TMS valve is probably clogged with rust/scale introduced from valving-in long-idle non-circulating water circuit. -> Switched X-mid pumping to IP10 and shut down MTP and QDP80. Will inspect TMS strainer etc. after it has cooled down.   Also, connected iLIGO cables to PT310 gauge pair as an interim means of monitoring pressure until cables can be shortend/routed permanately etc..

• FM suspension unboxed and brought to test stand
• Filiberto at EY pulling fiber

The HEPI system has been in a flushing loop for several days and will continue to do so over the weekend. No visible leaks were seen anywhere along the piping and valves. The system has been holding steady at 72 psi while the temperature of the HEPI fluid has been 23.8 c with an ambient air temperature of 21.6 c.

Brian Lantz made a set of changes to the watchdog for the bsc-isi system, in concert with Vincent.
following are the notes on the updates.
----
changes to the master model

for ST1
 - added input 25 'Payload_watchdog'
 - put 'Payload_watchdog as input 6 to ISIWATCHDOG inline c (replaced a ground)
 
 - changed the inline c code to be ISIWATCHDOG function in the c-code ISIWD.c
  (was BSCISIWATCHDOG in BSCISI.c) 
  
 for ST2
  
  reorder the inputs to the ST2 watchdog
     _now_     _was_
  1   CPS      CPS
  2   GS13     GS13
  3  ST1_WD    ACT
  4   BIO      BIO
  5   ACT      ST1 WD
  6   payload  PAYLOADWD_IN  cdsEpicsIn
  7   reset    reset
  
  
  in the BIO
  changed the bits watched by the coil driver, per the Ben Abbott 
  BSV-ISIv5, 
  D0901301-V5 and DCN E1100821
  
  changed the ADD to a 6 input NAND,
  added 2 new epics vars, BIO_IN_ST1_CD_TRIP and BIO_IN_ST2_CD_TRIP.
  these should be 0 if the coil drives are OK, and 1 if the coil drives are tripped.
  
  %% 
  change the h2isiitmy model
  1) back up old model:
  
  userapps/release/isi/h2/models$ cp h2isiitmy.mdl h2isiitmy_preSept1_2011.mdl

In The ITMY model
- new master model appears correctly
- route the Digital Outs via a goto/from tag pair to clean up screen where the payload block will go
- send the 1's to the ISC inputs, and the 65535s to the compter test points.

- added new block for the payload, copy from S1:ISI-ITMX model
- the SUS WD vars are:
FMY-
 H2:SUS-FMY_M1_WDMON_STATE

ITMY-
 H2:SUS-ITMY_M0R0_WDMON_STATE


From: Jeff Kissel 
Date: August 30, 2011 10:29:51 AM PDT
To: Brian Lantz 
Cc: Vincent Lhuillier , Fabrice Matichard , Jeff Garcia 
Subject: Re: BSC watchdog update

Hey Brian,
Sounds good to me. Jeff Garcia can be around if you need anything from the suspensions side. The FM does not have a dedicated watchdog epics variable for you, but for now you can use
H2:SUS-FMY_M1_WDMON_STATE
which is 0 if OK, non-zero if BAD (exactly like what's in the seismic WDMON block).

If we find that the "only watch the top stage" functionality is good in general for any suspension (besides the QUAD, which has the afore mentioned H2:SUS-ITMY_M0R0_WDMON_STATE), then we won't need to add in any specially dedicated channels for you, as there will be a similar variable for every other suspension.

I'll be in my office if you need me!

Cheers,
Jeff Kissel


update the MEDM screen for the Payload mon

userapps/release/isi/h2/medm/h2isiitmy$ cp ../../../s1/medm/s1isiitmx/S1ISI_CUST_ITMX_PAYLOADMON.adl H2ISI_CUST_ITMY_PAYLOADMON.adl

$ svn add H2ISI_CUST_ITMY_PAYLOADMON.adl 

	name="/opt/rtcds/lho/h2/userapps/release/isi/h2/medm/h2isiitmy/H2ISI_CUST_ITMY_PAYLOADMON.adl"


$ perl -pi -w -e 's/S1:ISI-ITMX/H2:ISI-ITMY/g;' *PAYLOADMON.adl


-- update the watchdog screen
userapps/release/isi/h2/medm/h2isiitmy$ cp ../../../s1/medm/s1isiitmx/S1ISI_CUST_ITMX_WATCHDOG.adl H2ISI_CUST_ITMY_WATCHDOG.adl

change the file name at the top of the file to:
	name="/opt/rtcds/lho/h2/userapps/release/isi/h2/medm/h2isiitmy/H2ISI_CUST_ITMY_WATCHDOG.adl"
	
change the epics vars - 	
userapps/release/isi/h2/medm/h2isiitmy$ perl -pi -w -e 's/S1:ISI-ITMX/H2:ISI-ITMY/g;' *WATCHDOG.adl

change the 2 related displays to:
		name="/opt/rtcds/lho/h2/userapps/release/isi/h2/medm/h2isiitmy/H2ISI_CUST_ITMY_PAYLOADMON.adl"
		
$ perl -pi -w -e 's/S1:ISI-ITMX/H2:ISI-ITMY/g;' *WATCHDOG.adl

fix the calls from the BSCISItool
$ perl -pi -w -e 's/s1isiitmx/h2isiitmy/g;' *WATCHDOG.adl

fix the paths and names of related displays
$ perl -pi -w -e 's/stn/s1/lho/h2/g;' *WATCHDOG.adl
$ perl -pi -w -e 's/isi/s1/isi/h2/g;' *WATCHDOG.adl
$ perl -pi -w -e 's/S1ISI_CUST_ITMX/H2ISI_CUST_ITMY/g;' *WATCHDOG.adl
		

Team SUS - Betsy B. Travis S., Andres R., and Jeff B.

Today team SUS removed the Fold Mirror (FMY) from the mechanical test stand in the staging building and transported it to the LVEA. It was craned over the beam tube it is now sitting just outside the BSC/ISI cleanroom. Tomorrow we plan to weigh it and mate it to the BSC/ISI.  

Removed 6" O.D. viewport from spool connecting GV1 to BSC8 and replaced with blank -> Begin pumping YBM -> will connect PT180 gauges tomorrow

Air controller was installed and is wired and working. There are two units, one outside the anteroom and one inside that can control the HEPA units. Double doors for the anteroom arrived today and were installed. The chiller support structure was installed in the chiller room and we are waiting on a few more parts before we can hang the chiller.

Dust counts are good.

• H2 PSL construction
• Dome removed at EY
• Power cycled h2adcumy

The plumbing going to BSC6 is complete.  Air pressure test in the system has been 100psi for 24 hours now.
See photos below:
First is ~overview of the Pump Stations to the Reservoirs and the plumbing before it runs through the wall.
Next a zoom into the recirculation section downstream of the Reservoir.
Before turning to go through the wall, there is an electrical break (third image.)
The fourth photo shows the VEA side of the penetration.  Obviously, we need to seal this up.
The fifth image shows where the vertical stack of tubing turns West at the BT termination slab and goes horizontal for the run to the BSCs.
Next image (010), the BSC10(H1) runs have stopped and at the East end of BSC6, the Supply and Return lines tee off to the manifold.
Next (060), is the West end of BSC6 where the runs terminate at the Distribution manifold.
Image 070 shows the pressure gauge holding 100psi after 24 hours.
Then much like BSC8, the 1/2" tubes from the manifolds turn up at the corners and run to the Four-way valves at the top of the SEI Piers--images 008 & 009.
Hats off to Jim & Danny, the Apollo welders, nay, artists!

B.Bland, T. Sadecki, J. Bartlett, A. Ramirez, Apollo Crew

Today the SUS crew dismounted the BSFM assembly (the future FMY) from the solid stack in the Staging Building, socked it up, and covered it in its protective housing.  It was then transported across the street into the LVEA high bay area where a few of the Apollo crew craned it over the X-arm beam tube to its present location outside of the BSC-ISI & Quad test stand clean room.  It is currently still in its sock and inside its metal protective housing.  Plans for tomorrow are to uncover the FMY, weigh it, then mate it to the BSC-ISI.  

Found leaking (cocked centering ring) NW gasket on NW blank at Vent valve ~3 hours after pump-down started -> corrected and continued pumping -> Room air leaking into volume is wet = complication.  

A reminder that the GPS time will roll over from 9 digits to 10 digits in 13 days (Sep 13th 18:46). I have created a count down EPICS system and attached it to the sitemap (see attached)

(Corey, Jim)

Now that the superstructure assembly is complete, we are now pecking away at items we weren't able to do earlier (due to lack of parts), or are in the procedure for post-superstructure.

LOCKERS

The 0-1 & 1-2 Lockers are installed.  (Don't forget:  slide in the Spring Barrel Nuts before installing the Stage0-1 Lockers...we always seem to forget this until after the fact!).

FLEXURE ROD BRACKETS & STAGE 1-2 SPRING POSTS INSTALLED

Flexure Rod Bracket assemblies are installed.  The Stage1-2 Spring Posts have also been installed.  We are now staged and ready for installation of the Springs.

ACTUATORS

Went through a few iterations of installing the Stage1-2 Actuators due to gaps not looking nominal after tooling was removed post installation.  I had gaps bigger than our NO-GO value a few times, but after a while, I think I was able to atleast get gaps under our NO-GO value.  (not sure what magic spells [or re-machinging of tooling or tightening of tolerances] are required to make this non-trivial).

For the Stage0-1 Actuators, when the Actuator Post was installed it was discovered that some hardware has fallen through the cracks.  The HK 1/2-13x2" bolts used to secure the post to Stage0 also happen to be used for lifting/transporting the entire assembly.  The latter bolts are the ones which had been accounted for and ordered, so we stole from this supply to install the assy#1 & #2 Actuator Posts.  At any rate, we are short because these bolts weren't ordered for the Posts.  Jim/Mitch are remedying this issue (getting these bolts into our hardware lists) & have also notified Celine at LLO.  In the meantime, we did have (6) of these bolts (we need [18]).  We went with a work-around here, BUT this variance needs to be corrected when we get the correct bolts.  Talked with Jim and thought we'd call/flag a variance like this as an "errata"......

BSCISI#3 Assembly Errata

Entry#1 20110830:  Due to lack of hardware, did not have enough HK 1/2-13 x 2" bolts for Stage0-1 Actuator Posts.  Temporary solution is to use (2) of the called out bolts in the holes which are in-accessible after assembly (basically two of the bolts here are under the Optics Table and switching them out later would be exteremely grievous!  The other (4) bolts used are generic 1/2-13x 2.5" bolts.  These generic bolts must be swapped out with the correct HK bolts once they are available!

The Stage0-1 Actuators were installed on to Stage1, but we chose NOT to connect to Stage0 at this time.  Due to the twist observed on Assy#2, it was decided to hold off on making this Actuator connection until after we float. 

Here are the Serial Numbers/positions of Actuators installed:

Small Actuators

Corner1

• Horiz s/n:  050
• Vert s/n:  049

Corner2

• Horiz s/n:  043
• Vert s/n:  039

Corner3

• Horiz s/n: 040
• Vert s/n:  047

Large Actuators

Corner1

• Horiz s/n:  106
• Vert s/n:  101

Corner2

• Horiz s/n:  103
• Vert s/n:  120

Corner3

• Horiz s/n:  119
• Vert s/n:  104

RIBS & GS-13 CLOSEOUT DOORS

With the Flexure Rod Brackets and Actuators installed, we were now able to install the Stage1 Ribs where the Trilliums are located.  The GS-13 Closeout Doors were also installed.

Motor for the air shower was installed today. HEPA units and lights are also in place in the acoustic enclosure.

Dust levels are good, see Patricks log for plots.

Oscar bailing tumbleweeds
Safety audit
Unifirst delivery
Return of cardboard container
Pickup of waste pallets
Fire department

plots of .5 micron particle counts attached, high counts at end X

J. Kissel, J. Garcia

The attached pdf includes plots of the open-loop transfer function measurements as well as the model for each Euler-basis degree-of-freedom of the top mass reaction chain (R0).  The plots display the calibrated measurement of the open loop transfer function from the test excitation channels ('H2:SUS-ITMY_R0_*DoF*_EXC") to the Damping filter inputs ('H:SUS-ITMY_RO_*DOF*_IN1_DQ').  Initial measurements agree quite well with the models.  More analysis and more measurements to come.  The measurement was conducted last Friday morning with the BSC-ISI Damping loops ON.

J. Kissel, J. Garcia

The attached pdf includes plots of the open-loop transfer function measurements as well as the model for each Euler-basis degree-of-freedom of the main chain (M0).  The plots display the calibrated measurement of the open loop transfer function from the test excitation channels ('H2:SUS-ITMY_M0_*DoF*_EXC") to the Damping filter inputs ('H:SUS-ITMY_MO_*DOF*_IN1_DQ').  Initial measurements agree quite well with the models.  More analysis and more measurements to come.  The Reaction chain (R0) transfer functions were conducted on Friday as well, results to follow.

The measurement was conducted last Friday morning with the BSC-ISI Damping loops ON.