<!-- Title: 16:47:19  Sun Nov  5 2000 -->
<!-- Crewchief: Steve Gordon -->
<!-- Op1: Dean Beckner -->
<!-- Op2: Cryo -->
<!-- Op3: Gas -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
Solenoid powered at 4650 amps; system cold and stable.  Store in progress.


<!-- Date: Mon Nov 6 07:52:43 2000 -->
Mixing A/E to tank #1.
<!-- Author: Bill Noe -->


<!-- Date: Mon Nov 6 12:04:40 2000 -->
Coming on shift, I see the solenoid at 0 amps. (This was intentional.)
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 12:22:22 2000 -->
Set lead flows in standby and set the storage dewar down to 40%. 
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 12:40:56 2000 -->
A/E mix to tank #1 is complete.
<!-- Author: Bill Noe -->


<!-- Date: Mon Nov 6 13:07:55 2000 -->
Wet engine will not slow down. Rich will look at the controller this afternoon.
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 14:51:12 2000 -->
Adjusted wet engine motor armature current from 13.0 to 14.3 amps   so it would control better at low speed. (P100).  Tried 15.0 amps but that was worse.  Normal speed operation around 500 was good with the setting at 14.3 amps.  During the next run we could spend a full day on this engine tuning.
<!-- Author: Schmitt -->
<!-- Comment: Mon Nov  6 15;09;42 comment by...Schmitt -->
Reset armature current back to 13.0 amps, since speed was unstable around 500 RPM.


<!-- Date: Mon Nov 6 15:36:37 2000 -->
Beams cryo will take our gas when we reduce our liquid inventory. Jerry Makara set the tank farm line higher than that of BABS, and we allowed gas to go from the tank farm to our storage tank, bumping it up about 2 psig. The arc cell increased to 0.2 ppm, up from 1.5 ppm momentarily. So the plan is that when we decide to warm up, call CHL and ask them to enable the EVTF kickback loop at some agreed upon pressure. We will continue to use the adsorber during this exchange.
<!-- Author: Steve Gordon -->
<!-- Comment: Mon Nov  6 15;41;18 comment by...Steve -->
Correction: above should read "... 0.2 ppm, up from 0.15 ppm"


<!-- Date: Mon Nov 6 16:07:07 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-83&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-83  width='250' align='top'></td><td>BA loop ready to take our helium.</a></td></tr></table>
<!-- Author: Steve -->
<!-- Comment: Mon Nov  6 17;59;05 comment by...Steve -->
This is the wrong loop...... see below.
<!-- Date: Mon Nov 6 16:12:28 2000 -->
CLC detectors are purged of isobutane using nitrogen. O2 readings were taken at the end of the process:  CLCE 21.5ppm, CLCW 12.5ppm.  Both detectors are pressurized with nitrogen at 3.5psig.  
<!-- Author: Mayling -->


<!-- Date: Mon Nov 6 16:47:48 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-84&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-84  width='250' align='top'></td><td>A funny thing happed to control dewar liquid level readout at  1104 this morning. The reading suddenly dropped to 23% from  57 %. The chassis indicated the correct reading, but FIX read something different. Bob Sanders reset the unit a couple times and the reading came back okay. Something in the output wiring?? </a></td></tr></table>
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 17:18:19 2000 -->
nwa chamber is on a/e gas at 13:00 (flow is at 3 cfh ) ,nwx is on n2 gas (flow is at 10 cfh )
<!-- Author: Dean -->


<!-- Date: Mon Nov 6 17:21:04 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-85&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-85  width='250' align='top'></td><td>Last snapshot of our loops before warmup. </a></td></tr></table>
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 17:22:28 2000 -->
Per Rob Roser, no more powerup; go ahead and warm up the system.
<!-- Author: Steve -->



<!-- Date: Mon Nov 6 18:03:01 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-86&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-86  width='250' align='top'></td><td>CHL has enabled BA loop 13 (I previously had the wrong loop picture). They are taking our inventory with a setpoint of 100 psig. in BABS.</a></td></tr></table>
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 22:45:38 2000 -->
The storage dewar is empty. Magnet He tubing is empty now, and the control dewar level is going fast. CHL has used our gas as make-up gas and reliquified it. Arc cell is 0.16 ppm. 
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 23:31:19 2000 -->
<pre>Okay, all the liquid is gone. Valve lineup is as follows: 
 
PVNS & PVNI:  10% open in manual 
PVMF:         100%, manual 
EVCP:         100%, manual 
EVBP:         setpoint 7psig, auto 
PVQR:         100%, manual 
PVLF:           0%, manual 
PVJT:          15%, manual 
PVX1:          10%, manual 
PVX2:         100%, manual 
BA1:   high slider, auto, 20-100% 
BA2:    low slider, auto, 20-50%, setpoint 285psig. 
BA13:   PBABS (PICD), setpoint 75psig, auto (CHL control) 
adsorber online as usual. 
wet and dry expanders:  Off. 
</pre>
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 23:42:56 2000 -->
Monitoring the pressures, the JT is just maintaining a trickle of flow through the system with a delta P of 1 psig between storage dewar, control dewar, and suction respectively. Should be good for the night.
<!-- Author: Steve -->


<!-- Date: Mon Nov 6 23:47:33 2000 -->
Informed CHL. They will close EVTF. PBABS is at 83 psig.
<!-- Author: Steve -->


<!-- Date: Tue Nov 7 08:55:38 2000 -->
Turned of the breaker for the isobutane heater.
<!-- Author: Noe -->


<!-- Date: Tue Nov 7 12:17:57 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-87&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-87  width='250' align='top'></td><td>Solenoid vacuum reading a pirani is 3u. The  solenoid mini B/A read 1 Torr. I closed PV72 and was able to open PV70 long enough to read on the other B/A gauge: initially it was 3e-3 Torr.</a></td></tr></table>
<!-- Author: Steve -->


<!-- Date: Tue Nov 7 12:44:30 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-88&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-88  width='250' align='top'></td><td>Noticed the pot was full. Had to go into formation and force PVXLP closed.</a></td></tr></table>
<!-- Author: Steve -->
<!-- Comment: Tue Nov  7 13;33;53 comment by...Steve -->
Shouldn't matter according to the print. Looks like PVXLN leaks by.


<!-- Date: Tue Nov 7 13:35:32 2000 -->
We are getting a LN2 fill. I informed the driver that we shut down operations and will not require as much product. He will inform his dispatcher.
<!-- Author: Steve -->


<!-- Date: Tue Nov 7 13:42:58 2000 -->
I closed MV-1730N -- liquid supply to the building.
<!-- Author: Steve -->


<!-- Date: Tue Nov 7 14:21:55 2000 -->
<pre>closed PVNS,PVNI, opened PVQR 100%, EVJT = 100%</pre>
<!-- Author: RDK -->
<!-- Comment: Tue Nov  7 15;42;05 comment by...sg -->
EVBP is set at 20 psig.


<!-- Date: Tue Nov 7 18:32:24 2000 -->
Warmup rate is currently 12K/hr.
<!-- Author: Steve -->
<!-- Comment: Tue Nov  7 18;33;42 comment by...Steve -->
Correction ---     6K/hr.     Oops.


<!-- Date: Tue Nov 7 18:48:01 2000 -->
Delta T is 138 Kelvin. Closed PVQR.
<!-- Author: Steve -->


<!-- Date: Tue Nov 7 19:05:28 2000 -->
 
Tested insertion of all 4 IMU snout sections to see whether there are any interferences with it and the central detector. 
Found a series of small issues, mostly cable dressings and shortening the platform inside the plug by 3 inches.   However, the NE snout has an interference with the turbo pump out line. 
This line needs to get rerouted.   There is also an interference with the shower max power supply on wedge 6 and the IMU heat exchanger that needs to be fixed.
<!-- Author: RR -->


<!-- Date: Tue Nov 7 20:33:27 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-89&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-89  width='250' align='top'></td><td>4 hour plot of warmup. The turnaround of RSCLR_P is a result of closing PVQR.</a></td></tr></table>
<!-- Author: Steve -->


<!-- Date: Tue Nov 7 21:06:22 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-90&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-90  width='250' align='top'></td><td>5 hour plot of pressure in BABS. Gonna blow the reliefs. Must be an anti-leak.</a></td></tr></table>
<!-- Author: Steve -->
<!-- Comment: Tue Nov  7 21;10;07 comment by...Steve -->
Dean checked; we are blowing reliefs.


<!-- Comment: Tue Nov  7 21;43;34 comment by...Steve -->
Earlier, I called CHL to see if they could take any gas. They said they were full. Then I checked the BA loops later and found both EVTF loops enabled. I asked them to close the valve and disable the loops (the clean line was a higher pressure than our buffer tank.)
<!-- Date: Tue Nov 7 21:37:37 2000 -->
We valved off BABS. The relief was going off and hadn't seated. Will check on it later. The system is running with LABS online.  
<!-- Author: Steve -->



<!-- Date: Tue Nov 7 23:21:18 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-91&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-91  width='250' align='top'></td><td>The BABS relief stuck open. Persuaded it shut at about 2300 hours.</a></td></tr></table>
<!-- Author: Steve -->


<!-- Date: Wed Nov 8 08:06:50 2000 -->
<table border=0><td><tr><td bgcolor=#e0e030>BOT switched from A/E to nitrogen at 0800.</td></tr></td></table>
<!-- Author: Noe -->
<!-- Comment: Wed Nov  8 12;31;27 comment by...Noe -->
Correction ... switch made at 09:15
<!-- Date: Wed Nov 8 12:15:49 2000 -->
Solenoid is at 130 Kelvin. Opened up PVQR to 100%.
<!-- Author: Steve -->



<!-- Date: Wed Nov 8 17:52:11 2000 -->
<pre>Helium storage update: 
BABS has been valved off at MV2061 since last night; 134 psig and  holding. 
 
LABS reads 125 psig on PI2044. Since LABS can go up to 250 psig, I closed MV 2044 and plugged SV 2009. 
 
I noticed a pressure drop of 12 psig over a 10 minute period, so there may 
be a small leak in that 1/2 line.  
Opened MV2044. 
</pre>
<!-- Author: Steve -->
<!-- Comment: Wed Nov  8 18;03;57 comment by...sg -->
correction: pressure drop was 6 psig.
<!-- Date: Wed Nov 8 17:58:45 2000 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-93&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=cryo-gas&action=view&page=-93  width='250' align='top'></td><td>LABS and temperature.</a></td></tr></table>
<!-- Author: Steve -->



<!-- Date: Wed Nov 8 20:34:33 2000 -->
Changed the cot inert flow on east & west from 150 scfh to 180 scfh.
<!-- Author: Dean -->
<!-- Comment: Wed Nov  8 22;57;09 comment by...Dean -->
was in low level alarm 15%
<!-- Date: Wed Nov 8 20:53:43 2000 -->
Readings on the clc chambers are as follows, west @ 5.73 psi and the east is @ 5.75 psi.
<!-- Author: Bruce / Dean -->
<!-- Comment: Wed Nov  8 22;54;12 comment by...Dean -->
  was in low level alarm 


<!-- Comment: Wed Nov  8 23;01;40 comment by... Dean -->
cot is in low level alarm not clc


<!-- Date: Wed Nov 8 23:42:12 2000 -->
Solenoid is at 158 Kelvin. Warmup rate ~2K/hr.
<!-- Author: Steve -->


<!-- Date: Thu Nov 9 07:10:03 2000 -->
Turned off Solenoid TOF Heaters.   While the process temperature was at 69.6 degrees, all of the other temperatures on the east side were 75-77 degrees.   The west side temperatures were also approaching 80 degrees.   Note that east plug is now open and that the nitrogen baggie purge flow is greatly reduced.
<!-- Author: RR -->


<!-- Date: Fri Nov 10 22:16:18 2000 -->
Changed the chw filters they were pluged solid with silt.
<!-- Author: Bruce & Dave -->