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<div dir="ltr">I’ll meet you at the test stand in physics storage. </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> shahinya@jlab.org <shahinya@jlab.org><br>
<b>Sent:</b> Thursday, April 13, 2023 8:55:37 PM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Cc:</b> Mark Jones <jones@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>; Donald Jones <jonesdc@jlab.org>; dsg-halla_ecal@jlab.org <dsg-halla_ecal@jlab.org>; Patrizia Rossi <rossi@jlab.org><br>
<b>Subject:</b> Re: test SM</font>
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<div class="PlainText">Hi Marc,<br>
<br>
Can we meet on Friday at 9:00 AM and discusses more detail in your plan?<br>
<br>
Thank you,<br>
Albert<br>
<br>
> Hi Albert,<br>
><br>
> I’m planning on moving the controls to the physics storage on Monday.<br>
><br>
> I’ve tested the software with the single supermodule. It controls the<br>
> temperature between the set points and controls ramping.<br>
><br>
> Tomorrow I will confirm networking communications in the physics storage<br>
> building for the cRIO controller. I have already ran the cable, I still<br>
> need to reassign the cRIO to that subnet and test to make sure I can log<br>
> in remotely.<br>
><br>
> Once confirmed, I will need the test stand to be at room temperature to<br>
> install the Omega High Temperature<br>
> RTDs<<a href="https://assets.omega.com/pdf/test-and-measurement-equipment/temperature/sensors/rtds/RTD-2-F3102.pdf">https://assets.omega.com/pdf/test-and-measurement-equipment/temperature/sensors/rtds/RTD-2-F3102.pdf</a>><br>
> on the supermodule front flanges and aluminum bar heater, for the<br>
> controls...by Monday. These RTDs are rated for 480 degrees C.<br>
><br>
> I have attached a screen shot from the controls while I was testing at low<br>
> temperature with the supermodule I have in the oven.<br>
><br>
> The software will control 4 power relays independently (Lowell RPC-20<br>
> picture attached) :<br>
><br>
> 1 relay will power a group of 3 supermodules in parallel (Bank 1)<br>
> 1 relay will power a group of 3 supermodules in parallel (Bank 2)<br>
> 1 relay will power a single aluminum bar side (Al 1)<br>
> 1 relay will power a single aluminum bar side (Al 2)<br>
><br>
> The software will monitor all 6 supermodules and 2 aluminum bar sides as<br>
> well as the heated volume in front of the supermodules.<br>
><br>
> I have one extra RTD to monitor either the back end of the test stand or<br>
> as a redundant temperature for the front heated volume area.<br>
><br>
> The heated volume will be monitored by an independent Omega process<br>
> controller, I will set it to trip (and latch) all power to the heaters if<br>
> the temperature exceeds the Omega set point. For the single SM test stand<br>
> I used 400 degrees C. The Omega interlock should not be cleared until the<br>
> test stand has been visually verified safe...this will require someone to<br>
> go to the test stand to clear the latch.<br>
><br>
> There will be a monitor and keyboard so that your group can set the<br>
> operating values after I train everyone, which I plan to do next week.<br>
><br>
> All RTD temperatures will be datalogged for plotting.<br>
><br>
> Finally, I will prepare some documentation about the system so you can add<br>
> the controls into your safety document.<br>
><br>
><br>
><br>
><br>
><br>
> Regards,<br>
> Marc<br>
><br>
><br>
><br>
><br>
><br>
> Get Outlook for iOS<<a href="https://aka.ms/o0ukef">https://aka.ms/o0ukef</a>><br>
> ________________________________<br>
> From: shahinya@jlab.org <shahinya@jlab.org><br>
> Sent: Thursday, April 13, 2023 2:00:13 PM<br>
> To: Marc Mcmullen <mcmullen@jlab.org><br>
> Cc: Mark Jones <jones@jlab.org>; Bogdan Wojtsekhowski <bogdanw@jlab.org>;<br>
> Donald Jones <jonesdc@jlab.org><br>
> Subject: test SM<br>
><br>
> Hi Marc,<br>
><br>
> Thermal tests of 6 SM were started and now the situation has stabilized.<br>
> If you are planning to test the control system, please let me know?<br>
><br>
><br>
> Thank you,<br>
> Albert<br>
><br>
><br>
<br>
<br>
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