<!-- Title: 00:22:18  Wed May 24 2006 -->
<!-- Crewchief: Dean -->
<!-- Op1: Bruce -->
<!-- Op2: &nbsp; -->
<!-- Op3: &nbsp; -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
solenoid is powered to 4650 amps


<!-- Date: Wed May 24 05:06:07 2006 -->
All systems look good this morning.
<!-- Author: Bill Noe -->


<!-- Date: Wed May 24 05:59:08 2006 -->
Bruce on duty,gas and cryo readings taken all systems are running fine at this time.
<!-- Author: Bruce -->


<!-- Date: Wed May 24 06:04:33 2006 -->
Ram Mechanical is finally done with chiller #2. There were some wiring issues and compressor #3 had to be replaced. It is running fine now.
<!-- Author: Bill Noe -->


<!-- Date: Wed May 24 10:24:17 2006 -->
The solenoid just dropped out due to quad log problem can't ramp solenoid up.I'll call Rob to see if he can fix the problem.
<!-- Author: Bruce -->
<!-- Comment: Wed May 24 10;48;14 comment by...Jim L -->
Solenoid dropped from the slow dump switch closing. Could not stop or hold the slow dump! Rob thinks that the SLD holding relay went.


<!-- Comment: Wed May 24 11;33;11 comment by...Jim L/ Rob R/ Bruce/ and Mark -->
Magnet hi-potted good w/ no problems indicated. Openned all P.S. cabinet doors and checked for leaks---> none found all looked good. Rob is personally checking the top side of the solenoid. Cycled the fast and slow dump switches ---> all seemed to function normally. 
<!-- Comment: Wed May 24 11;47;52 comment by...Jim L -->
Nothing unusual found ,so----> powering up to 3000 amps and will hold till further notice.
<!-- Comment: Wed May 24 13;47;57 comment by...Jim L and Bruce -->
While powering the solenoid we saw it was at 16.4g/sec, so just as a precautionary measure run it up a gram to 19g/sec.
<!-- Date: Wed May 24 10:56:13 2006 -->
Set COT to N2 flow at 45 SCFH
<!-- Author: Bill Noe -->
<!-- Comment: Wed May 24 11;10;58 comment by...DA -->
Increased this to 50 scfh. No plans to increase this any further.


<!-- Date: Wed May 24 11:12:54 2006 -->
Filled the clc east and west to 22.5psia.
<!-- Author: Bruce -->




<!-- Date: Wed May 24 12:46:05 2006 -->
Did a leak rate on the IMU chamber with nitrogen it was 2.15scfh and the O2 was 115ppm.
<!-- Author: Bruce -->


<!-- Date: Wed May 24 13:09:32 2006 -->
Ith IMU chamber is now on argon/ethane at a flow rate of 20scfh as per Del's request.
<!-- Author: Bruce -->


<!-- Date: Wed May 24 13:34:32 2006 -->
<table border=0><td><tr><td bgcolor=#e0e030><pre>Magnet Post Mortem 
 
We could see no obvious why the magnet slow dumped.  The only status panel ligth was the dump switch itself -- not a crash button but rather just that it was open and that was bad... (doh) 
 
We exercised all dump switches in manual mode.  Hipotted the magent (85megohms), performed a full checkout, and did a visual inspection in ALL cabinets, on the detector etc.  We could find nothing wrong. 
 
Historical showed the magnet flow did fluctuate -- but that may be in response to lack of heat load -- not necessarily the cause.  The current flow rate is 19gps -- I DID NOT change it.  (though I thought it was 18) 
 
If I were a betting man -- I would say that the problem is in the solenoid that holds the slow dump switch closed.  That is getting weak and let go.  The other fault could be a problem in the filter cabinet -- though I doubt it because everything is floating in there. 
 
We powered the magnet again and we will watch it. 
 
IF IT TRIPS -- PLEASE CALL ME AND DON'T RESET ANYTHING.  I WANT TO LOOK AT ALL OF THE INDICATORS TO SEE IF WE CAN LEARN SOME MORE OR WHETHER I MISSED SOMETHING THE FIRST TIME. 
 
399-2609 IS MY CELL 
 
To be continued....</pre></td></tr></td></table>
<!-- Author: rr -->



<!-- Date: Wed May 24 19:22:41 2006 -->
cdf checklist is completed everything is running normal at this time
<!-- Author: Dean -->


<!-- Date: Wed May 24 21:23:39 2006 -->
imu alarm, low level alcohol alarm the alcohol bubbler pressure is over 50" normal pressure is 35" the pressure is high because the flow rate is set to 20 scfh , set pressure to 35" to fill the alcohol bubbler flow rate is 9 scfh
<!-- Author: Dean -->