<!-- Title: 04:33:58  Thu May  3 2001 -->
<!-- Crewchief: Warren -->
<!-- Op1: Dean -->
<!-- Op2: &nbsp; -->
<!-- Op3: &nbsp; -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
Elog for 5/3/01


<!-- Date: Thu May 3 04:35:12 2001 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-167&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-167  width='300' align='top'></td><td>LABS pressure after leak repair</a></td></tr></table>
<!-- Author: WBDB -->


<!-- Date: Thu May 3 05:40:02 2001 -->
Bruce, Wayne on duty.
<!-- Author: B.V  W.W -->


<!-- Date: Thu May 3 05:46:36 2001 -->
Gas readings taken, everything looks normal at this time.
<!-- Author: B.V  W.W -->


<!-- Date: Thu May 3 06:58:45 2001 -->
Started an A/E mix to tank #3.
<!-- Author: Bill Noe -->
<!-- Comment: Thu May  3 08;32;08 comment by...Bill Noe -->
Mix stopped due to HI Dp across the trailer strainer. Reset and restarted. Mix running ok now.

<!-- Date: Thu May 3 07:08:09 2001 -->
<pre>Put lead flows in standby -- from Dean and Warren's plot, we are still using some helium -- question is whether its still a leadflow problem or not.  Lets let the system  run in this configuration for a few hours before we make any changes.</pre>
<!-- Author: RR -->



<!-- Date: Thu May 3 08:48:55 2001 -->
<pre>Walt removed Safety resistor chassis in order to make mods for new quench protection circuitry.</pre>
<!-- Author: Rob R. -->


<!-- Date: Thu May 3 11:01:12 2001 -->
CHW pump had negitive pressure on the return side. The #2 expansion tank was low on water as it manualy filled the pressure came up to 20 psi on the return side pressure and the supply came up to 120 psi on the supply side.
<!-- Author: B.V  W.W -->


<!-- Date: Thu May 3 11:50:34 2001 -->
Jerry Domoleczny made adjustments to the valve actuators on PVLEADA and PVLEADB.  They work better. PVLEADA is still 1/16" short on its stroke. PVLEADB has a full stroke.  Both valve leak through, but we can live with that.  Jerry will call the manufacturer about the actuator on PVLEADA.
<!-- Author: Sanders -->


<!-- Date: Thu May 3 11:58:06 2001 -->
I observed a 0.8 psig pressure drop across the lead flow check valve CV-2009-H. The pressure drop was measured using a temporary pressure gage upstream of the check valve.  If CV-2009-H were repaceed with a check lave having a smaller back pressure, that would help with maintaing lead flows when we are running.  But that is immpractical when we are running.
<!-- Author: Sanders -->


<!-- Date: Thu May 3 20:56:05 2001 -->
chiller #4 compressor #1 faulted 1 low/hi motor current or external hi pressure cutout or exernal motor overload 
<!-- Author: D.B ,W.B -->


<!-- Date: Thu May 3 21:11:15 2001 -->
reading taken , trouble on storage shed center bottom flammable gas senser, (reset senser ok )
<!-- Author: D.B , W.B -->


<!-- Date: Thu May 3 22:00:58 2001 -->
Chiller 4 compressor 1 shut down again.  After it reset and went to full loading, I saw that the %Full Load Motor Current was at about 110%.  Shut down occurs at 115%.  We switched # 1 to LAG, so that #2 was the main compressor.  When #2 was fully loaded, the %FLMC was only 66%.  When #1 kicked in after that with only it's first stage loaded, the %FLMC was 60%.  It then shut down without going to it's fully loaded stage, waiting to be needed again.  We're going to run them with #2 leading, to hopefully keep the current down on #1.  When it gets hot out, we'll probably need the full loading capabilities of #1, so we should look into why the current is so high.
<!-- Author: WBDB -->