What the EMC Report ought to contain to is the model number, revision and or latest ECN implemented (if that is available), software revision running on the product (if relevant) and detailed photos of the product tested. Then if there is a change in the emissions profile on a future sample, you can do a comparison. Maintaining the "golden sample" which was originally tested is also recommended if that is feasible.
Tom Smith, P.Eng Principal Engineer TJS Technical Services Inc. Tel: +1 403-612-6664 Email: <mailto:tsm...@tjstechnical.com> tsm...@tjstechnical.com <http://www.tjstechnical.com/> http://www.tjstechnical.com Follow us on Twitter: TJS_Technical -----Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of lapro...@yahoo.com Sent: Wednesday, March 13, 2013 3:51 PM To: Scott Xe; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Critical component in EMC report What's critical for product safety isn't always critical for EMC - they are two compliance domains and 3rd party lab reports treat them as such. While EMC involves assessment to regulatory limits for emissions (potential for interference) or immunity to external interference, product safety tends to address potential for electric shock, fire, and other hazards. EMC reports document EUT test setups, instrumentation used, etc to assure repeatability of test data, product safety reports conversely document critical components, and some EUT test setups. One other point (for US based folks) - critical components are typically checked by the certifying agency versus the report during routine field inspections post-production, though such routine inspections aren't done for EMC. _____ From: Scott Xe <scott...@gmail.com> To: EMC-PSTC@LISTSERV.IEEE.ORG Sent: Wednesday, March 13, 2013 11:48 AM Subject: [PSES] Critical component in EMC report It is common not to have critical component list in EMC reports issued from 3rd party laboratories. Those information are essential to track if the correct parts to be used in mass production. What is main reason not to have it as a common practice in the field? Thanks and regards, Scott - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
