<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div>george,<br></div><div>the question is (as marco pointed out) once the air compressor is off the humidity goes down. yeep its going down because N2 is dry, which to me implies that the humidity is in the air that is being pumped to the RICH (see brian's email).<br data-mce-bogus="1"></div><div>the inline desiccant query was for the air line and for use during the run.<br data-mce-bogus="1"></div><div>my guess is the air compressor is not really outputting dry air.<br data-mce-bogus="1"></div><div>anyway lets muse over it.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>brian, what needs to be done to fully instrument the air tank sensor so that the PV doesn't read 0 ppm?<br data-mce-bogus="1"></div><div>amrit<br data-mce-bogus="1"></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"George Jacobs" <jacobsg@jlab.org><br><b>To: </b>"Amrit Yegneswaran" <yeg@jlab.org>, "dsg-rich" <dsg-rich@jlab.org>, "Marco Mirazita" <Marco.Mirazita@lnf.infn.it><br><b>Sent: </b>Thursday, May 10, 2018 1:39:59 PM<br><b>Subject: </b>Re: [Dsg-rich] Fwd: RICH humidity graph<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">Please remind me of the sensor specs. isn't it only good down to 3% RH?<br style="" data-mce-style=""> <br style="" data-mce-style=""> If this is the RICH nitrogen volume, why are we referring to it as dry air? The nitrogen supply is dry, < 3 ppm. But, the rate of H2O contamination from atmosphere is directly proportional to ambient H2O levels. The N2 flow is currently maxed out with the old N2 panel. The only way to increase N2 flow is to install the NEW panel.<br style="" data-mce-style=""> <br style="" data-mce-style=""> Since the air is currently off, adding a desiccant will do nothing?<br style="" data-mce-style=""> <br style="" data-mce-style=""> Perhaps both top and bottom garage doors are open in the hall? Check hall humidity. The higher the humidity gets in the hall, the higher it will go in the RICH. There should be a rule, only 1 door open at a time like we tried to have for clas6. With both doors open, hall humidity can reach to outside/exterior levels. This has been an issue many times in the past with clas6.<br style="" data-mce-style=""> <br style="" data-mce-style=""> Cheers,<br style="" data-mce-style=""> George<br style="" data-mce-style=""> <br style="" data-mce-style=""><div class="moz-cite-prefix" style="" data-mce-style="">On <span class="Object" id="OBJ_PREFIX_DWT208_com_zimbra_date">5/10/2018</span> 12:32 PM, Amrit Yegneswaran wrote:<br style="" data-mce-style=""></div><blockquote cite="mid:1911902993.8878396.1525969946672.JavaMail.zimbra@jlab.org" style="" data-mce-style=""><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: rgb(0, 153, 0);" data-mce-style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900;"><div style="" data-mce-style="">hi marco,</div><div style="" data-mce-style="">i couldn't see the graphs in your email/log, so pete sent me the graphs.<br style="" data-mce-style=""></div><div style="" data-mce-style="">so, it appears the dry air isn't dry !<br style="" data-mce-style=""></div><div style="" data-mce-style=""><br style="" data-mce-style=""></div><div style="" data-mce-style="">brian/george,<br style="" data-mce-style=""></div><div style="" data-mce-style="">could one add an inline desiccant<br style="" data-mce-style=""></div><div style="" data-mce-style="">amrit<br style="" data-mce-style=""></div><hr id="zwchr" style="" data-mce-style=""><div style="" data-mce-style=""><b style="" data-mce-style="">From: </b>"Peter Bonneau" <span class="Object" id="OBJ_PREFIX_DWT209_ZmEmailObjectHandler"><a class="moz-txt-link-rfc2396E" href="mailto:bonneau@jlab.org" target="_blank" style="" data-mce-href="mailto:bonneau@jlab.org" data-mce-style=""><bonneau@jlab.org></a></span><br style="" data-mce-style=""> <b style="" data-mce-style="">To: </b>"Amrit Yegneswaran" <span class="Object" id="OBJ_PREFIX_DWT210_ZmEmailObjectHandler"><a class="moz-txt-link-rfc2396E" href="mailto:yeg@jlab.org" target="_blank" style="" data-mce-href="mailto:yeg@jlab.org" data-mce-style=""><yeg@jlab.org></a></span><br style="" data-mce-style=""> <b style="" data-mce-style="">Sent: </b><span class="Object" id="OBJ_PREFIX_DWT211_com_zimbra_date">Thursday, May 10</span>, 2018 9:25:48 AM<br style="" data-mce-style=""> <b style="" data-mce-style="">Subject: </b>RICH humidity graph<br style="" data-mce-style=""></div><div style="" data-mce-style=""><br style="" data-mce-style=""></div><div style="" data-mce-style=""><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" data-mce-style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000;"><div style="" data-mce-style="">Hi Amrit,<br style="" data-mce-style=""> <br style="" data-mce-style=""></div><div style="" data-mce-style="">Here is the RICH humidity graph:<br style="" data-mce-style=""></div><div style="" data-mce-style=""><br style="" data-mce-style=""></div><div style="" data-mce-style=""><img class="image-style-plentybig" title="/home/clasrun/screenshots/clonpcrich1_20180510_045809.gif" style="" src="https://logbooks.jlab.org/files/styles/plentybig/public/2018/05/3574284/clonpcrich1_20180510_045809.gif?itok=DJI_YiXl" saveddisplaymode="" data-mce-src="https://logbooks.jlab.org/files/styles/plentybig/public/2018/05/3574284/clonpcrich1_20180510_045809.gif?itok=DJI_YiXl" data-mce-style="" height="489" width="885"></div></div><br style="" data-mce-style=""></div></div><br style="" data-mce-style=""><fieldset class="mimeAttachmentHeader"></fieldset><br style="" data-mce-style=""><pre style="" data-mce-style="">_______________________________________________
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George Jacobs
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