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Should I change the limits for that PT from something other than 1-1.5 then?</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dsg-hallb_magnets <dsg-hallb_magnets-bounces@jlab.org> on behalf of David Kashy <kashy@jlab.org><br>
<b>Sent:</b> Wednesday, July 15, 2020 9:53 AM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; Ruben Fair <rfair@jlab.org>; dsg-hallb magnets <dsg-hallb_magnets@jlab.org><br>
<b>Subject:</b> Re: [Dsg-hallb_magnets] Hall B magnet interlock and instrumentation checkouts complete</font>
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Hi Tyler,</div>
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1.5 is the setpoint for control so it will read that most of the time.</div>
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Dave<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Wednesday, July 15, 2020 9:37 AM<br>
<b>To:</b> Ruben Fair <rfair@jlab.org>; David Kashy <kashy@jlab.org>; dsg-hallb magnets <dsg-hallb_magnets@jlab.org><br>
<b>Cc:</b> Probir Ghoshal <ghoshal@jlab.org><br>
<b>Subject:</b> Re: [Dsg-hallb_magnets] Hall B magnet interlock and instrumentation checkouts complete</font>
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Ruben, Dave,</div>
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The "failure" for PT8554 is that the script expects the sensor's reading to be between 1 atma and 1.5 atma. Since the value the script saw for PT8554 was 1.5 atma, it put the status as "FAIL".</div>
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Tyler<br>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Ruben Fair <rfair@jlab.org><br>
<b>Sent:</b> Wednesday, July 15, 2020 9:27 AM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> Probir Ghoshal <ghoshal@jlab.org><br>
<b>Subject:</b> Fw: [Dsg-hallb_magnets] Hall B magnet interlock and instrumentation checkouts complete</font>
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<span>Hi Tyler,</span></div>
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<span>Could you comment on Dave's question below?</span></div>
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<span>Cheers</span></div>
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<span>Ruben</span></div>
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<div id="x_x_x_divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b> David Kashy <kashy@jlab.org><br>
<b>Sent:</b> Wednesday, July 15, 2020 8:46 AM<br>
<b>To:</b> Ruben Fair <rfair@jlab.org>; Probir Ghoshal <ghoshal@jlab.org>; Denny Insley <dinsley@jlab.org><br>
<b>Cc:</b> Nicholas Sandoval <sandoval@jlab.org><br>
<b>Subject:</b> Re: [Dsg-hallb_magnets] Hall B magnet interlock and instrumentation checkouts complete</font>
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Hi All,</div>
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It is correct that TD8522TR has been very unreliable in the past, especially when below 10K. During warm up and cooldown it seems to work better. It is also true that it is not used for control so running without it is not a big deal.</div>
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As far as PT8554, that is another story. This sensor is the input parameter for the LN2 reservoir back pressure control. It seems to be working fine at least now when I looked.
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What was the indication that caused it to be "failed" during the checkout? <br>
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Thanks</div>
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Dave<br>
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<div id="x_x_x_x_divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b> Ruben Fair <rfair@jlab.org><br>
<b>Sent:</b> Tuesday, July 14, 2020 3:27 PM<br>
<b>To:</b> David Kashy <kashy@jlab.org>; Probir Ghoshal <ghoshal@jlab.org>; Denny Insley <dinsley@jlab.org><br>
<b>Cc:</b> Nicholas Sandoval <sandoval@jlab.org><br>
<b>Subject:</b> Fw: [Dsg-hallb_magnets] Hall B magnet interlock and instrumentation checkouts complete</font>
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<span>Dave,</span></div>
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<span>See elog below from the magnet pre-check today - I believe neither the temp or press sensor is being used to control anything?</span></div>
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<span><a title="https://logbooks.jlab.org/entry/3814661" href="https://logbooks.jlab.org/entry/3814661">https://logbooks.jlab.org/entry/3814661</a></span></div>
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<span><img tabindex="-1" size="6442" style="height:auto; max-width:100%" data-outlook-trace="F:6|T:6" src="cid:a085db29-3ee8-43e5-9b24-e8fabd360697"></span></div>
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<span><img tabindex="-1" size="4359" style="height:auto; max-width:100%" data-outlook-trace="F:6|T:6" src="cid:9d782124-1718-4ea5-b08f-00251ddc11b5"></span></div>
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<span>Probir,</span></div>
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<span>I think we did at one time try swapping leads to activate the spare TD8522TR but saw the same behavior?</span></div>
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<span>Ruben</span></div>
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<div id="x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b> Dsg-hallb_magnets <dsg-hallb_magnets-bounces@jlab.org> on behalf of Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Tuesday, July 14, 2020 2:59 PM<br>
<b>To:</b> dsg-hallb magnets <dsg-hallb_magnets@jlab.org><br>
<b>Subject:</b> [Dsg-hallb_magnets] Hall B magnet interlock and instrumentation checkouts complete</font>
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Hello</div>
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Pablo, Probir, and I have completed the pre-power-up interlock and instrumentation checkouts for the Hall B Solenoid and Torus. The checkout results have been posted to the logbooks at the links below.</div>
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Torus interlock - <a id="LPlnk326120" href="https://logbooks.jlab.org/entry/3814708">
https://logbooks.jlab.org/entry/3814708</a><br>
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Torus instrumentation - <a id="LPlnk237676" href="https://logbooks.jlab.org/entry/3814474">
https://logbooks.jlab.org/entry/3814474</a> , <a id="LPlnk179987" href="https://logbooks.jlab.org/entry/3814475">
https://logbooks.jlab.org/entry/3814475</a><br>
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Solenoid interlock - <a id="LPlnk826233" href="https://logbooks.jlab.org/entry/3814709">
https://logbooks.jlab.org/entry/3814709</a><br>
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Solenoid instrumentation - <a id="LPlnk304647" href="https://logbooks.jlab.org/entry/3814661">
https://logbooks.jlab.org/entry/3814661</a></div>
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Tyler<br>
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