<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Seems fine, did you guys do anything to fix it?<br></div><div><br></div><div data-marker="__SIG_PRE__">Marc McMullen<br>Physics Division<br>Detector Support Group<br>7738</div><br><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"nick markov" <markov@jlab.org><br><b>To: </b>"Marc McMullen" <mcmullen@jlab.org><br><b>Sent: </b>Wednesday, January 4, 2017 4:30:12 PM<br><b>Subject: </b>Re: HTCC pressure<br></div><br><div data-marker="__QUOTED_TEXT__">I forgot to mention,<div class="">easydew monitor was stuck at 1022 for humidity count (may be it is fine, but it does not update while EPICS does).</div><div class="">Nick.</div><div class=""><br class=""><div><blockquote class=""><div class="">On Jan 4, 2017, at 4:26 PM, nick markov <<a href="mailto:markov@jlab.org" class="" target="_blank">markov@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">This is a EPICS StripTool from slow control.<div class="">Data is current, from today running.</div><div class="">Nick.<br class=""><div class=""><blockquote class=""><div class="">On Jan 4, 2017, at 4:00 PM, Marc McMullen <<a href="mailto:mcmullen@jlab.org" class="" target="_blank">mcmullen@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;" class=""><div class="">Nick,</div><div class=""><br class=""></div><div class="">Where is your plot info from?<br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Marc McMullen<br class="">Physics Division<br class="">Detector Support Group<br class="">7738</div><div class=""><br class=""></div><hr id="zwchr" class=""><div class=""><b class="">From: </b>"nick markov" <<a href="mailto:markov@jlab.org" class="" target="_blank">markov@jlab.org</a>><br class=""><b class="">To: </b>"Marc McMullen" <<a href="mailto:mcmullen@jlab.org" class="" target="_blank">mcmullen@jlab.org</a>><br class=""><b class="">Cc: </b>"Youri Sharabian" <<a href="mailto:youris@jlab.org" class="" target="_blank">youris@jlab.org</a>>, "Will Phelps" <<a href="mailto:wphelps@jlab.org" class="" target="_blank">wphelps@jlab.org</a>><br class=""><b class="">Sent: </b>Wednesday, January 4, 2017 3:50:14 PM<br class=""><b class="">Subject: </b>Re: HTCC pressure<br class=""></div><div class=""><br class=""></div><div class="">What somewhat bothers me is that (I’ve attached updated plot) variations change for no clear reasons from time to time:<div class=""><br class=""></div><div class=""><span id="cid:63C06ED8-59E3-43D0-9229-AB082B1E2AD4@jlab.org" class=""><Screen Shot 2017-01-04 at 3.48.16 PM.png></span><br class=""><div class=""><br class=""><div class=""><blockquote class=""><div class="">On Jan 4, 2017, at 3:12 PM, Marc McMullen <<a href="mailto:mcmullen@jlab.org" class="" target="_blank">mcmullen@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<div class=""><p class="">Hi Nick,</p><p class="">Your long plot looks like +/- 0.03 IWC, we have seen that much
variation before. Brian sent a plot during a storm in an email
from 9/14 which shows that much variation. <br class="">
</p><p class=""><br class="">
</p>
Thanks,<br class="">
Marc<br class="">
<div class="moz-cite-prefix">On 1/4/2017 2:31 PM, nick markov wrote:<br class="">
</div>
<blockquote cite="mid:76C94AAD-D998-4EFD-A982-8C352628DE48@jlab.org" class="">
Hi Marc,
<div class="">Happy New Year!<br class="">
<div class="">we were monitoring differential pressure in the
HTCC and found a lot of variations.</div>
</div>
<div class="">Some of them are rather slow (X scale is in
minutes):</div>
<div class=""><br class="">
</div>
<div class=""><span id="cid:part1.7D37F44C.7507C5AE@jlab.org" class=""><Mail Attachment.png></span></div>
<div class=""><br class="">
</div>
<div class="">but we also have a rapid variations as well (scale
in seconds):</div>
<div class=""><br class="">
</div>
<div class=""><span id="cid:part2.A595DE24.D49F1405@jlab.org" class=""><Mail Attachment.png></span></div>
<div class="">Could you look at this?</div>
<div class="">Thank you very much, Nick.</div>
</blockquote>
<br class="">
<pre class="moz-signature">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
</div>
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