(Late Post)

Upgraded remaining 2 C2960 edge switches (sw-lvea-aux1, sw-mech-aux) to IOS 15.0.2SE2.  Upgraded C1142 wireless access points in LVEA and EY to IOS 12.4.25dJA2.  All work completed by 9AM today.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot requested from 5 PM Feb. 11 to 5 PM Feb 12. Also attached are plots of the modes to show when they were running/acquiring data.

Data was taken from h1nds1.
9720 seconds worth of data was unavailable on this server
1440.0 minutes of trend displayed
'No data output' errors on some plots

HAM 2,3 volume was done venting this morning
Apollo removed the east door on HAM 3 and the blank on the septum
Filiberto and Vincent changed the connections of the ISI and HEPI cables to the BSC 1 expansion chassis to conform with the drawings for ADC and DAC usage
Richard to end Y to work on access control system
Filiberto moved satellite boxes for BSC1 to newly installed rack
Mark B. started running transfer functions on PR3
Fire department was on site testing alarms
Eric installed valves in the HEPI hydraulic lines
Jim working on BS in test stand in the afternoon
Rick went into the H1 PSL enclosure to investigate temperature fluctuations, turned out to be normal
CDS maintenance work

SEI ITMY: Vincent and Richard. Changed the h1isiitmy and h1hpiitmy models to agree with Ben's drawings. Rearranged the ADC cables at the rear of the IO Chassis as part of this change. WP 3699 is closed.

added h1seib2 to the Dolphin and DAQ networks.

Installed new channel list in the h1broadcast0 dmt data. Restarted DAQ.

Cleaned up the EDCU CDS channels to remove obsolete front ends and add new front ends.

Jim connected h1oaf0, h1lsc0,h1asc0 RFM to the two RFM switches (X and Y arm), this removed the IPC errors on these front ends.

Imported h2susauxb478 as a first release of h1susauxb123 (removed FMX,Y components).

Powered up h1susauxh34 now that the IO Chassis power supply problem was resolved.

Added h1susbs, h1iopsusauxb123, h1susauxb123, h1iopsusauxh34 and h1susauxh34 to the DAQ.

New IOP models (drawing cleanup and adding SVN Id and HeadURL tags) installed into: h1iopseib1, h1iopseib2, h1iopsusauxh34, h1iopsusauxh2, h1iopsusauxb123.

WP3713 remains open as Hugo did not get to loading the new HAM ISI and HPI models. This may be done later this week.

SUS H1-R6 Field Rack was placed between BSC2 and BSC3 by Apollo. Moved SUS SAT Units for ITMY into final rack location. Units had to be powered down and disconnected for pulling and dressing cables into rack. All associated electronics have been reconnected and powered up.

Filiberto Clara

We removed the east door on ham 3 and then removed the blank on the septum. The door was then replaced on the ham with 4 bolts. All but 4 bolts on the BE-3A spool have been removed and those remaining 4 were backed off 1 turn in preperation for removal of septum and spool tomorrow. 

Deepak and Bubba report they're done for the day, so commencing Matlab TFs on PR3.

Cyrus Reed, Jim Batch

Run Cat. 5e cable for HEPI pump controller in Mechanical room mezzanine. Connect pump controller to network switch, reconfigure network settings in the pump controller to connect to the slow controls network.  Controller was NOT rebooted or restarted during this reconfigure.

Rename pump controller to h1hpipumpctrll0, modify user accounts to conform to CDS system.  Mount /opt/rtcds, /opt/rtapps, and /opt/cdscfg directories from h1boot to the pump controller.

For x1dc0, removed the 3 slot PCIe riser card, installed a 4 slot PCIe riser.  Installed 3 10GE fiber cards, 1 IRIG-B card.  2 of the 10GE cards are configured for mx communication to the x1daq switch to allow testing of daqd software on multiple paths.  The x1daq switch is configured for 1 vlan for both 10GE fibers and all the front end computers.  Through experimentation, the following order of cards has been determined:

(top to bottom)

10GE mx :0
10GE eth2
10GE mx :1
IRIG-B

Also restarted x1nds0, wouldn't allow ssh login.

Arnaud P. Betsy W. 

Did B&K hammer measurements on Friday feb 8th on the BeamSplitter that will be installed in BSC2. 
Config: BSC-ISI Unlocked, QUAD Unlocked, Baffles ON, Vibration Absorbers ON, Damping ON.

Attached, pictures describing the position of hammer impacts, and accelerometer + corresponding pulse files.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot requested from 5 PM Feb. 10 to 5 PM Feb 11. Also attached are plots of the modes to show when they were running/acquiring data.

Data was taken from h1nds0.
1440.0 minutes of trend displayed

Dan M investigated the MSR SATABOY failure which occured at 15:23 Sunday afternoon. The system was performing a weekly maintenance task and crashed, it is a mystery why this happed this weekend. He took opportunity of the stopped system to perform the same firmware upgrades on the Sun box h1ldasgw1 as he did with h1ldasgw0 last week. The h1fw0 system is back up and running.

We noticed a mismatch in min trend saving periods, 60 mins for h1fw1 and only 30 mins for h1fw0. I changed h1fw0 to use 60 mins which will be applied on the next daq restart.

I turned the HEPAs, AC units, and make up air back to 100%. I increased the temperature of the AC units from 20 C to 21 C as this is the temperature the room seemed to settle at. We'll try another test in the future with this new setting to see how the room responds.

HAM2-HAM3 volume 9.1 x 10-7 torr before venting

With the help of Gerardo 1 and 2, and Deepak, we used the ergo arm to stuff the PR3 optic into the suspension.  We then suspended the mass, adjusting roll and height to within the 1mm tolerance and 1mm.  Official height numbers coming shortly.  Deepak will tweek the top stage BOSEMs into center tomorrow and then we're ready for Phase 2b TFs.

LVEA laser safe all day.

Ongoing H1 PSL enclosure environmental alarms all day relating to Robert Schofield's aLog entry from Sunday. Recall that HEPA and AC units are offline in the enclosure. Low differential pressure (LVEA<->PSL anteroom 0.00 inchesH20) and periodic high dust counts (briefly approached 1000 cts for 0.3 microns in the anteroom this morning, now at zero. No dust data for the laser room.)

0845-1000 - Paul F taking power spectra on IMC.
0845 - Doug D D working near H2 enclosure.
0900 - Corey G working around HAM6/Squeezer bay.
0910 - HFD onsite working on fire alarm systems in OSB and LSB, users should receive additional notification before alarms activated.
0930-1530 - Eric A and Chris (Apollo) in LVEA inspecting and working on valving and piping for HEPI systems. (HAM4/6 and BSC3).
1000-1500 - Gregorio to Pasco.
1000 - Apollo moving ERGO arm over beam tube to South Bay.
1030 - Filiberto running cables HAM1-HAM3.
1030 - Patrick and Justin reset remote dust alarm threshold for DST_16 to 1000cts (local alarm threshold unchanged).
1300 - First cleaning of HAM3-BSC2 spool. Justin to LVEA to investigate 80,000 ct (.3) dust alarm at DST_15. Vacuum cleaner had been running next to monitor.
1345 - Corey G to EY.
1430 - Keita pulling a length diode on IOT2L (H1 PSL shutter is closed). 
1545 - Justin reset remote alarm threshold for DST_16 to default values (minor>100, major>200).

I turned off the LSC RFPD interface chassis (D1102060) for IMC length diode using the switch at the back panel, disconnected the length diode cable, connected a DB9 break out board at the front panel without connecting anything else (but the back panel was still connected to the ADC), switched on/off the chassis (again using the switch at the back) and measured how the +-18V supply for the diodes behave.

To my disappointment, every time I did this test, for about 1ms to 1.5ms there was a window where the negative power was -18V but the positive was basically non-existent (below 5V). It seems as if the negative voltage goes live immediately. See the first picture, the scale is 5V and 1ms/div.

This is the unit that we've been using since the start of IMC installation.

I did the same test for WFS interface (D1101865), and it was only marginally better than the length interface (second picture, same scale as the first one).

This is the unit that replaced the broken unit, but since this one was put into service WFS was connected/disconnected hot.

Switching off was much better for both of these units, basically both of the rails came down slowly at the same time (the last picture, note the slower 4ms/div scale).

During these tests, the only things powered by the chassis were the DC interface cards in the chassis and of course the power protection board itself. 

I don't know if the units are broken, we'll test them further though the change Rich Abbott made to diode boxes will hopefully make this behavior harmless.

Viton pads are usually set under the balancing masses of the HAM-ISIs in order to damp resonances at high frequencies (above 100Hz).

The SEI team would like to asses the improvements that the Viton Pads help achieving. To do so, we decided to have viton pads under the balancing masses of the ISIs of LLO's IMC, and to try without those pads here at LHO.

Transfer functions were measured ovenight on LHO HAM3-ISI. We compared those transfer functions with the ones measured at LLO under an equivalent state:

• ISI is in vacuum
• MC2/PR2 are installed and damped
• TMDs are intalled on the ISI
• HEPI is locked

Comparative plots are attached.