Brodie, Thank you very much for your informative reply.
3 A/m translates to 3.8 microTeslas, correct? 10 A/m would then be 12.6 uT That is indeed benign. For some reason 2 mT had stuck in my mind and that would have been hard to deal with, requiring a block diagram change during prototype design phase. Thank you again. Your answer has allowed me to jump ahead on the Project as we wait for Purchasing to complete the spec purchases. Regards, Robert On Mon, 1 Dec 2008 14:59:16 -0600 "Brodie Pedersen" <[email protected]> wrote: > EN 60601-1 points to IEC 60601-1-2 for EMC test > requirements. If you > are making a device for Europe the frequency required at > 3 A/m is 50 Hz. > If you want to sell the device in the US it is at 60Hz as > well following > the method of IEC 61000-4-8, power frequency magnetic > fields. If the > device is life supporting, then the test level is 10 A/m. > These are > very benign levels to pass unless you have a hall effect > sensor built > into your device. > > Brodie Pedersen Quality Manager Product Development > Nonin Medical Inc. > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > Sent: Monday, December 01, 2008 2:53 PM > To: John Woodgate; [email protected] > Subject: Re: EN60601-1 Susceptibility to magnetic fields > from AC mains > > Going to, but need to design NOW, or at least make > certain > I'm not painted into a corner later. > > > On Mon, 1 Dec 2008 19:35:37 +0000 > John Woodgate <[email protected]> wrote: > > In message <[email protected]>, dated Mon, 1 > > Dec 2008, [email protected] writes: > > > > > > >What is the requirement for susceptibility to magnetic > > fields from the AC mains as listed in EN60601-1? > > > > It's really dangerous to rely on answers to such > > questions, even from this erudite community. We can't > > tell you everything that the standard says, and we > don't > > know what is relevant for your product. You DO need to > > buy the standard and study it. > > -- > > OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and > > www.isce.org.uk > > Either we are causing global warming, in which case we > > may be able to stop it, > > or natural variation is causing it, and we probably > can't > > stop it. You choose! > > John Woodgate, J M Woodgate and Associates, Rayleigh, > > Essex UK > > > > - > > > > > 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 <[email protected]> > > > > All emc-pstc postings are archived and searchable on > the > > web at: > > http://www.ieeecommunities.org/emc-pstc > > Graphics (in well-used formats), large files, etc. can > be > > posted to that URL. > > > > 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 <[email protected]> > > Mike Cantwell <[email protected]> > > > > For policy questions, send mail to: > > Jim Bacher: <[email protected]> > > David Heald: <[email protected]> > > - > > 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 <[email protected]> > > All emc-pstc postings are archived and searchable on the > web at: > http://www.ieeecommunities.org/emc-pstc > Graphics (in well-used formats), large files, etc. can be > posted to that > URL. > > 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 <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher: <[email protected]> > David Heald: <[email protected]> > > > This email, including attachments, may include > confidential and/or proprietary information, and may be > used only by the person or entity to which it is > addressed. 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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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
