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</style><article id="node-418928" class="node node-logentry article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/3346132" rel="bookmark">Turn BCAL back on</a>
</h1>
</header><div class="date-vitals">
<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3346132" class="lognumber" data-lognumber="3346132">3346132</a>. Submitted by <a href="https://logbooks.jlab.org/user/elton">elton</a> on <time datetime="2015-07-17T07:52:31-0400" pubdate="pubdate">Fri, 07/17/2015 - 07:52</time>. </p>
<p class="last-update">
Last updated on <time datetime="2015-07-17T10:10:08-0400" pubdate="pubdate">Fri, 07/17/2015 - 10:10</time></p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hdbcal">HDBCAL</a> <a href="https://logbooks.jlab.org/book/hdlog">HDLOG</a></td></tr></table></div>
<div class="logentry node-content">
<p>After last month's power outage, turning BCAL electronics back on. The chiller has been on for some time and temperatures and humidity has stabilized. See attached figure.</p><ul><li>Turned on LV and crate for LEDs</li><li>Turned on all fADC, TDC and disc crates. The only crate that had already been on was vmebcal1.</li><li>Turned on all bias and LV crates for SiPMs</li><li>Turned on NIM electronics</li><li>Turned on chillers and se to "remote". Set point is 64.4 deg F (18 deg C).</li><li>Restored Bias and LV voltages from spring 2015 restore file.</li><li>LV on SiPM all came up except for Upstream channels 4, 5 and 6 (channel status is "unplugged"). I have turned them back off to check on connections.</li><li>Bias on SiPM all came back. I have turned them back off until LV settings are fixed.</li><li>After power cycling the south upstream Wiener crate, the LV came back.</li><li>Turned on all LV and bias on the SiPMs</li><li>The LED controls were not working. I reset the controller (still a bug in the system requires this after startup). This brought the crate back to life. Controls are working. However, I did notice that the lights on the LED distribution box seem to be off, but I thought they should be on. </li></ul></div>
<div class="attachment-box">
<div class="image-wrapper"><img class="image-style-plentybig" src="cid:3d7870a0dc8b8ba1b03a03fc947a700e@logbooks.jlab.org" width="960" height="679" alt="" title="Temperature and humidity before turning electronics on" /></div> <div class="image-wrapper"><img class="image-style-plentybig" src="cid:e89e5c8e5a9a91e493e5542a284702af@logbooks.jlab.org" width="960" height="568" alt="" title="Recent time history of temperature and humidity before turning on electronics" /></div> </div>
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