<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000"><div>Thank you Peter!</div><div><br data-mce-bogus="1"></div><div>I switched the detector ON to monitor the RICH parameters.</div><div><br data-mce-bogus="1"></div><div>Regards,</div><div>Valery</div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Peter Bonneau" <bonneau@jlab.org><br><b>To: </b>"Valery Kubarovsky" <vpk@jlab.org>, "Tyler Lemon" <tlemon@jlab.org><br><b>Cc: </b>"dsg-rich" <dsg-rich@jlab.org>, "Marco Mirazita" <marco.mirazita@lnf.infn.it><br><b>Sent: </b>Monday, August 6, 2018 3:00:42 PM<br><b>Subject: </b>Re: [Dsg-rich] RICH cooling system instability<br></blockquote></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><p>Hi Valery,</p><p>DSG is looking into this issue.<br></p><p>I've checked the Hardware Interlock system and it's running normally.<br></p><p>Mark and George are investigating the compressor for the drop in flow and pressure that occurs around 12:00.</p><p>Peter<br></p><p><br></p><br><div class="moz-cite-prefix">On 8/6/2018 10:32 AM, Valery Kubarovsky wrote:<br></div><blockquote cite="mid:1675800492.14823491.1533565977196.JavaMail.zimbra@jlab.org"><div style="font-family: arial,helvetica,sans-serif; font-size:
12pt; color: #000000" data-mce-style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000;"><div>Hi Tylor,</div><div>I observe some instability in the RICH cooling system. Please take a look to the log entry</div><div><br></div><div><a class="moz-txt-link-freetext" href="https://logbooks.jlab.org/entry/3584390" target="_blank" data-mce-href="https://logbooks.jlab.org/entry/3584390">https://logbooks.jlab.org/entry/3584390</a></div><div><br></div><div>It is happening around 12:00. The temperature increase is obviously connected with the change in the<br> airflow1 and airflow2, as well as with the change in the airpr1. As a result we got interlock signal from sensor temp4 and temp11.</div><div><br></div><div>Could you please take a more careful look.</div><div>Thank you,</div><div>Valery</div><div><br></div></div><br><fieldset class="mimeAttachmentHeader"></fieldset><br><pre>_______________________________________________
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