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<div style="font-size: 10pt; "><p dir="ltr" style="margin-top:0;margin-bottom:0;">Hi Alexander,</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><br></p><p dir="ltr" style="margin-top:0;margin-bottom:0;">Which holder manufacturer and holder specs? I personally would not expect a clipring to give out after 2-3 months use, if used properly, but it may not be the clipring itself, rather the holder spring, depending on the system.</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><br></p><p dir="ltr" style="margin-top:0;margin-bottom:0;">Best wishes,</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><br></p><p dir="ltr" style="margin-top:0;margin-bottom:0;">Cornelia</p></div>
<div style="font-size: 10pt; "><div id="LGEmailHeader" dir="ltr" style="margin-top:0;margin-bottom:0;"><p dir="ltr" style="margin-top:0;margin-bottom:0;"><br></p><p dir="ltr" style="margin-top:0;margin-bottom:0;">------ Original message------</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><b>From: </b>Alexander Shkumatov<ashkumatov@gmail.com></ashkumatov@gmail.com></p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><b>Date: </b>Wed, 22 Feb 2017 14:43</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><b>To: </b><a href="mailto:3dem@ncmir.ucsd.edu">3dem@ncmir.ucsd.edu</a>;</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><b>Subject:</b>[3dem] heavy use of clip ring in cryo-holder</p><p dir="ltr" style="margin-top:0;margin-bottom:0;"><br></p></div><pre>Dear 3DEMmers,We have a 120kV microscope that is used heavily for screening purposes. Since recently we have about 5-6 active cryo users and a clip ring in a cryo holder being broken (not working properly) twice in 3 months. I wonder if this is a normal half-life period for clip rings, say, it’sexpected that it breaks every 2-3 months of heavy usage?Thank you in advance, Alex _______________________________________________3dem mailing<a href="mailto: list3dem@ncmir.ucsd.eduhtt"> list3dem@ncmir.ucsd.eduhtt</a>ps://<a href="http://mail.ncmir.ucsd.edu/mailman/listinfo/3dem">mail.ncmir.ucsd.edu/mailman/listinfo/3dem</a></pre></div></body></html>