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Hi Bob,</div>
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I will set up a meeting for later this week.</div>
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Marc</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Bob Miller <rmiller@jlab.org><br>
<b>Sent:</b> Monday, July 22, 2024 12:15 PM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Cc:</b> Brian Eng <beng@jlab.org><br>
<b>Subject:</b> Re: ALERT gas controls</font>
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Hi Marc,</div>
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The ALERT group is ready to move forward with the detector gas pressure control system that uses the Alicat MFCs. They would like to use this system in September, so it would be nice to install and test it in August.</div>
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When can we meet to discuss the gas control system and the target straw testing?</div>
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Thanks,</div>
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Bob Miller</div>
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Hall B Lead Engineer</div>
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(757) 822-9586</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><span style="font-family:Calibri,sans-serif; font-size:11pt; color:rgb(0,0,0)"><b>From:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Sent:</b> Thursday, April 4, 2024 11:49 AM<br>
<b>To:</b> Bob Miller <rmiller@jlab.org>; Marc Mcmullen via dsg-hallb_gas <dsg-hallb_gas@jlab.org><br>
<b>Subject:</b> Re: ALERT gas controls</span>
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<div style="direction:ltr">Ok Bob,</div>
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<div style="direction:ltr">I’m going to connect the cRIO to set flow on your Mrs and readout your pressure sensors. </div>
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<div style="direction:ltr">I’ll update you when it is ready for testing. </div>
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<div style="direction:ltr">Marc</div>
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Get <a href="https://aka.ms/o0ukef" id="OWAad35ea01-51e5-5dba-ef30-22f645d0f910" class="x_OWAAutoLink" data-auth="NotApplicable">
Outlook for iOS</a></div>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><span style="font-family:Calibri,sans-serif; font-size:11pt; color:rgb(0,0,0)"><b>From:</b> Bob Miller <rmiller@jlab.org><br>
<b>Sent:</b> Thursday, April 4, 2024 11:23:52 AM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org>; Marc Mcmullen via dsg-hallb_gas <dsg-hallb_gas@jlab.org><br>
<b>Subject:</b> Re: ALERT gas controls</span>
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Hi Marc,</div>
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For the testing this month, I would like to use the MFC308 to supply the drift chamber. The chamber is currently not set up to run at 1050 mbar, so I will just use a bubbler to control the pressure.</div>
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As soon as they are done testing, we can change over to the new control system and test it while the detector is bypassed.</div>
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Thanks,</div>
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Bob Miller</div>
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Hall B Lead Engineer</div>
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(757) 822-9586</div>
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<div id="x_x_x_divRplyFwdMsg" dir="ltr"><span style="font-family:Calibri,sans-serif; font-size:11pt; color:rgb(0,0,0)"><b>From:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Sent:</b> Thursday, April 4, 2024 7:41 AM<br>
<b>To:</b> Marc Mcmullen via dsg-hallb_gas <dsg-hallb_gas@jlab.org>; Bob Miller <rmiller@jlab.org><br>
<b>Subject:</b> ALERT gas controls</span>
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Hi Bob,</p>
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The Alicat MFCs have arrived. Brian has started developing LabVIEW drivers for them. I have started writing the ALERT gas controls software to run in the EEL building.</p>
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Did you still just want to run MFC308 as a purge system, or do you want to go with the pressure controls on the exhaust?</p>
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Regards,</p>
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Marc</p>
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