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<div dir="ltr">Dear Dave.</div>
<div dir="ltr">I do acknowledge and concur to your thoughts.</div>
<div dir="ltr">The alarm trigger to new value 2400 is okay with me as we discussed for now but we need some mine to learn and take this from us in the future.</div>
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<div dir="ltr">Regards </div>
<div dir="ltr">Probir </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Hallb-engineering <hallb-engineering-bounces@jlab.org> on behalf of kashy--- via Hallb-engineering <hallb-engineering@jlab.org><br>
<b>Sent:</b> Friday, April 11, 2025 5:30:02 PM<br>
<b>To:</b> esr-users@jlab.org <esr-users@jlab.org>; hallb-engineering@jlab.org <hallb-engineering@jlab.org>; hallb@jlab.org <hallb@jlab.org><br>
<b>Subject:</b> [Hallb-engineering] [New Logentry] Follow-up Re: Torus Strain Gage Alarm Tripped Again</font>
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<h1 class="x_node-title"><a href="https://logbooks.jlab.org/entry/4353679" rel="bookmark">Follow-up Re: Torus Strain Gage Alarm Tripped Again</a>
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<p class="x_author-datetime">Lognumber <a href="https://logbooks.jlab.org/entry/4353679" class="x_lognumber" data-lognumber="4353679">
4353679</a>. Submitted by <a href="https://logbooks.jlab.org/user/kashy">kashy</a> on
<time datetime="2025-04-11T17:29:43-0400"><a href="https://logbooks.jlab.org/entries?start_date=1744403383&end_date=1744410583&book=HBLOG&book=HBTORUS">Fri, 04/11/2025 - 17:29</a></time>.
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<th>Logbooks: </th>
<td><a href="https://logbooks.jlab.org/book/hblog">HBLOG</a> <a href="https://logbooks.jlab.org/book/hbtorus">
HBTORUS</a></td>
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<th>Entry Makers: </th>
<td>kashy</td>
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<th>References: </th>
<td><a href="https://logbooks.jlab.org/entry/4353637">4353637 - Torus Strain Gage Alarm Tripped Again</a></td>
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<p>Just to be clear this was not a magnet trip it was an alarm triggered.<br>
This signal is related to the force in a Z support in the Torus and is one of two on Coil B<br>
There are similar supports on coils D and F too. </p>
<p>The alarm values are below 0 and above 2000lbs<br>
The data logger shows this signal (blue plot) has been alarming for most all of 2025 and has slowly crept up since early 2023 (no data is available using the standard plotting routine)
</p>
<p>We should probably have someone go deeper and look at many signals to see if there any long term trends that could portent something we could avoid or be ready for...<br>
Who is that person? Yes I could do it, but when I retire who is that? There needs to be someone learning this system and that needs to happen soon!</p>
<p>Anyway for now I raised the alarm trigger range from 0-2000 to 400-2400</p>
<p>Dave</p>
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<div class="x_image-wrapper"><img class="x_image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2025/04/4353679/Strain Gage screen and plot of Coil B Z support forces.png" width="960" height="649" alt=""></div>
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