{"id":1262,"date":"2015-04-16T11:20:33","date_gmt":"2015-04-16T18:20:33","guid":{"rendered":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/?p=1262"},"modified":"2015-04-16T11:20:33","modified_gmt":"2015-04-16T18:20:33","slug":"attention-drx499-users-cooperation-needed","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/2015\/04\/attention-drx499-users-cooperation-needed\/","title":{"rendered":"ATTENTION : DRX499 &#8211; USERS&#8217; COOPERATION NEEDED"},"content":{"rendered":"<p><a href=\"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-content\/uploads\/2015\/04\/TXO_500_Probe-e1429208185874.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1263\" src=\"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-content\/uploads\/2015\/04\/TXO_500_Probe-e1429208185874.png\" alt=\"TXO_500_Probe\" width=\"800\" height=\"600\" \/><\/a>As we all know, the DRX499 magnet takes involved effort to shim up to get usable lineshapes.\u00a0 Duration of 24 hours or more for shimming all the 28 shims is not uncommon.\u00a0\u00a0 All this effort gets wasted when users inadvertently turn the wrong &#8216;knob&#8217; under the magnet while they are trying to tune and match the probe with the &#8216;wobb&#8217; command.\u00a0 The picture above should give a clear idea.<\/p>\n<p><strong>USERS ARE REQUESTED TO DIRECT THAT FEW SECONDS WORTH OF ATTENTION WHILE TUNING\/MATCHING SO THAT THEY DON&#8217;T LOOSEN THE PROBEHEAD FROM ITS DEFAULT POSITION. <\/strong><\/p>\n<p><strong>Moving the probe by a fraction of a mm is sufficient to completely alter the shim gradient profile and render the optimized shim set useless.\u00a0 It is in your own interest to identify the correct 1H Tune and Match knob and not touch the GOLD coloured knob.<br \/>\n<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As we all know, the DRX499 magnet takes involved effort to shim up to get usable lineshapes.\u00a0 Duration of 24 hours or more for shimming all the 28 shims is not uncommon.\u00a0\u00a0 All this effort gets wasted when users inadvertently turn the wrong &#8216;knob&#8217; under the magnet while they are trying to tune and match [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,9,1,7],"tags":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/1262"}],"collection":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/comments?post=1262"}],"version-history":[{"count":3,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/1262\/revisions"}],"predecessor-version":[{"id":1266,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/1262\/revisions\/1266"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/media?parent=1262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/categories?post=1262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/tags?post=1262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}