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<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes">Hi Don,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes">Do you have the right and approved documentation in place to run the test that you are suggesting?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes">I am a little bit scared about your statement
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:red;mso-contextual-alternates:yes">“</span><span style="font-size:12.0pt;color:red">we haven't used this control+power supply sufficiently, so we will need to come in physically to make sure everything
is behaving as expected…..”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span class="rynqvb"><span lang="EN" style="font-size:12.0pt">The last thing that we need is to get into an accident because the work has not be planned as it should have been<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="rynqvb"><span lang="EN" style="font-size:12.0pt"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">patrizia<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">-------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"># Patrizia Rossi<br>
# Jefferson Lab <br>
# 12000 Jefferson Avenue<br>
# Suite 5<br>
# Newport News VA 23606 (USA)<br>
# e-mail: </span><a href="mailto:rossi@jlab.org">rossi@jlab.org</a><span style="color:black"><br>
# phone: +1 (757) 269 7740<br>
# fax: + 1 (757) 269 5800</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Dsg-halla_ecal <dsg-halla_ecal-bounces@jlab.org> on behalf of Donald Jones via Dsg-halla_ecal <dsg-halla_ecal@jlab.org><br>
<b>Date: </b>Monday, August 14, 2023 at 3:54 PM<br>
<b>To: </b>dsg-halla_ecal@jlab.org <dsg-halla_ecal@jlab.org>, Marc Mcmullen <mcmullen@jlab.org><br>
<b>Subject: </b>Re: [Dsg-halla_ecal] ECal test stand<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi Marc,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Jimmy and I adjusted the settings higher. Everything seems to be behaving as expected. We need to get data on the fully heated system ASAP so that we can place an order for heaters and power supplies
this fiscal year (as in this week). As we discussed this morning, since the system is new and may not behave exactly as we expect, we will need to monitor it more closely. After watching it today, I realized it will not reach temperatures we need during our
regular 8 to 10 hour workday, so Jimmy and I agreed to run the system overnight by alternating coming in to check on it every few hours throughout the evening and night. We can tweak setpoints as necessary or even shut it down if there is an issue. We carefully
monitored each material used in the enclosure for temperature rating and have already run the heaters and enclosure to much hotter temperatures than what we are aiming for here, so I am not worried about unexpected material flammability. However, we haven't
used this control+power supply sufficiently, so we will need to come in physically to make sure everything is behaving as expected. Checking every few hours should be sufficient to catch an unexpected runaway effect. We should physically check the power supplies
to make sure they aren't overheating and that the system as a whole is behaving safely and meeting expectations. If there is a way for us to monitor it remotely like you do, that would be handy too.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">-Don<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Donald Jones<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hall A/C Staff Scientist<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Jefferson Lab<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Newport News, VA<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> 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> Monday, August 14, 2023 1:54 PM<br>
<b>To:</b> dsg-halla_ecal@jlab.org <dsg-halla_ecal@jlab.org>; Marc Mcmullen <mcmullen@jlab.org><br>
<b>Subject:</b> Re: [Dsg-halla_ecal] ECal test stand</span> </p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi Don,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I have a meeting to attend, but here is a plot of the current temperatures if you wanted to make an adjustment at the test stand.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Marc<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> 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> Monday, August 14, 2023 10:08 AM<br>
<b>To:</b> dsg-halla_ecal@jlab.org <dsg-halla_ecal@jlab.org><br>
<b>Subject:</b> [Dsg-halla_ecal] ECal test stand</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi Don,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Are you available to go to the test stand this morning. If so we should test the system at operational temperatures (enough to get the crystal fronts to 220C).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I will be on vacation starting Tuesday afternoon. During my absence contact Brian Eng or Tyler Lemon if there is an issue with the controls.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">During the testing phase, the system should not be run without someone monitoring it. The test station has the controls running on the local monitor.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Marc<o:p></o:p></span></p>
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