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<div dir="ltr">what is upgraded process or controller</div>
<div dir="ltr">the temp. of the bottom area should be lowest</div>
<div dir="ltr">so why do you want to monitor it</div>
<div dir="ltr">T_top>T_middle>T_bottom</div>
<div dir="ltr">so if i know what T_middle is, i know T _bottom is lower</div>
<div dir="ltr">am i missing something</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Dsg-halla_ecal <dsg-halla_ecal-bounces@jlab.org> on behalf of Marc Mcmullen via Dsg-halla_ecal <dsg-halla_ecal@jlab.org><br>
<b>Sent:</b> Friday, April 18, 2025 2:10:37 PM<br>
<b>To:</b> Bogdan Wojtsekhowski <bogdanw@jlab.org>; dsg-halla_ecal@jlab.org <dsg-halla_ecal@jlab.org>; Mark Kevin Jones <jones@jlab.org><br>
<b>Subject:</b> Re: [Dsg-halla_ecal] [New Logentry] Heaters restarted more fans installed all setpoints 290degC.</font>
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We are scheduled to receive the upgraded Omega process controller in early May. At that point the temperature from the bottom area of the heated volume will be in EPICS monitoring. The middle and top areas of the heated volume are already in EPICS.</div>
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Regards,</div>
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Marc</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dsg-halla_ecal <dsg-halla_ecal-bounces@jlab.org> on behalf of adaq--- via Dsg-halla_ecal <dsg-halla_ecal@jlab.org><br>
<b>Sent:</b> Friday, April 18, 2025 12:20 PM<br>
<b>To:</b> Bogdan Wojtsekhowski <bogdanw@jlab.org>; dsg-halla_ecal@jlab.org <dsg-halla_ecal@jlab.org>; Mark Kevin Jones <jones@jlab.org><br>
<b>Subject:</b> [Dsg-halla_ecal] [New Logentry] Heaters restarted more fans installed all setpoints 290degC.</font>
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<h1 class="x_x_node-title"><a href="https://logbooks.jlab.org/entry/4360036" rel="bookmark">Heaters restarted more fans installed all setpoints 290degC.</a>
</h1>
<div class="x_x_date-vitals">
<p class="x_x_author-datetime">Lognumber <a href="https://logbooks.jlab.org/entry/4360036" class="x_x_lognumber" data-lognumber="4360036">
4360036</a>. Submitted by <a href="https://logbooks.jlab.org/user/adaq">adaq</a> on
<time datetime="2025-04-18T12:19:43-0400"><a href="https://logbooks.jlab.org/entries?start_date=1744989583&end_date=1744996783&book=HALOG&book=BIGBITE&book=SUPERBIGBITE">Fri, 04/18/2025 - 12:19</a></time>.
</p>
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<th>Logbooks: </th>
<td><a href="https://logbooks.jlab.org/book/halog">HALOG</a> <a href="https://logbooks.jlab.org/book/bigbite">
BIGBITE</a> <a href="https://logbooks.jlab.org/book/superbigbite">SUPERBIGBITE</a></td>
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<th>Entry Makers: </th>
<td>jonesdc</td>
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<div class="x_x_logentry x_x_node-content">The heaters all turned off around 10:30AM. I went into the hall and found that one Omega for the front ambient temperatures was tripped (furthest left on the rack which I believe is monitoring the bottom front ambient
temperature of the detector). All Omega process controllers had sepoints of 270degC and were far from reaching that so perhaps it was a transient or poor thermocouple connection. If it happens again, we will have to try to figure out what is causing it. I
reset it and changed the setpoints on all three to 290degC. Temperatures have started to climb again.<br>
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<div class="x_x_image-wrapper"><img class="x_x_image-style-plentybig" width="960" height="304" title="snapshot_1" src="https://logbooks.jlab.org/files/styles/plentybig/public/2025/04/4360036/snapshot_1.png"></div>
<div class="x_x_image-wrapper"><img class="x_x_image-style-plentybig" width="960" height="512" title="snapshot_2" src="https://logbooks.jlab.org/files/styles/plentybig/public/2025/04/4360036/snapshot_2.png"></div>
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