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<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes">Very well! Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-contextual-alternates:yes">Do we have to order now another spare?<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"><u><span style="color:#0563C1">rossi@jlab.org</span></u></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-hallb_rich <dsg-hallb_rich-bounces@jlab.org> on behalf of tlemon@jlab.org <tlemon@jlab.org><br>
<b>Date: </b>Thursday, October 13, 2022 at 11:25 AM<br>
<b>To: </b>dsg-hallb_rich@jlab.org <dsg-hallb_rich@jlab.org><br>
<b>Subject: </b>[dsg-hallb_rich] [New Logentry] RICH Sector 1 gas system readout chassis replaced<o:p></o:p></span></p>
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<h1><span style="font-size:15.0pt;font-family:"Trebuchet MS",sans-serif;color:#555555"><a href="https://logbooks.jlab.org/entry/4057396">RICH Sector 1 gas system readout chassis replaced</a>
<o:p></o:p></span></h1>
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<span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif"><a href="https://logbooks.jlab.org/entry/4057396/edit?destination=email/send">Edit</a><o:p></o:p></span></li><li class="MsoNormal" style="color:#555555;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
<span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif"><a href="https://logbooks.jlab.org/entry/4057396/delete?destination=email/send">Delete</a><o:p></o:p></span></li></ul>
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<p class="author-datetime1"><span style="font-size:8.5pt;font-family:"Trebuchet MS",sans-serif;color:#555555">Lognumber
<a href="https://logbooks.jlab.org/entry/4057396">4057396</a>. Submitted by <a href="https://logbooks.jlab.org/user/tlemon">
tlemon</a> on <a href="https://logbooks.jlab.org/entries?start_date=1665671041&end_date=1665678241&book=DSGLOG&book=HBLOG&book=RICH">
Thu, 10/13/2022 - 11:24</a>. <o:p></o:p></span></p>
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<b><span style="font-size:8.5pt;font-family:"Trebuchet MS",sans-serif">Logbooks: <o:p>
</o:p></span></b></p>
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<span style="font-size:8.5pt;font-family:"Trebuchet MS",sans-serif"><a href="https://logbooks.jlab.org/book/dsglog">DSGLOG</a>
<a href="https://logbooks.jlab.org/book/hblog">HBLOG</a> <a href="https://logbooks.jlab.org/book/rich">
RICH</a><o:p></o:p></span></p>
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<b><span style="font-size:8.5pt;font-family:"Trebuchet MS",sans-serif">Entry Makers:
<o:p></o:p></span></b></p>
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<span style="font-size:8.5pt;font-family:"Trebuchet MS",sans-serif">mirazita<o:p></o:p></span></p>
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<p><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#555555">RICH Sector 1 cooling air flow, cooling system buffer tank, and nitrogen purge flow reading dropped out (incorrectly read zero).<o:p></o:p></span></p>
<p><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#555555">In the past a hard reboot of the system resolved the issue but the failure kept occurring after reboots.<o:p></o:p></span></p>
<p><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#555555">The expansion gas system readout chassis that monitors those sensors was swapped out for a spare, resolving the issue.<o:p></o:p></span></p>
<p><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#555555">RICH S1 hardware interlocks are now back to normal operating conditions.<o:p></o:p></span></p>
<p><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#555555">Marco Mirazita has turned HV and LV back on for the detector.<o:p></o:p></span></p>
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