In message <c1ac11b8.4bf84%[email protected]>, dated Mon, 18 Dec 2006, Ken Javor <[email protected]> writes >I am evaluating a PDA-like device for EMI/explosive atmosphere usage. >The device has what appears to be an LCD type display, which means it >has back-lighting. While the device runs off 4.2 Vdc batteries, which >are deemed a safe potential, I expect that the back-light potential is >at a much higher level, and that getting from 4.2 Vdc to that higher >potential can be potentially noisy from an EMI point-of-view. > >Any commentary/experience to share?
Wave a portable AM radio round it. Then you'll know at once if there is an EMI issue! -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Politically unexceptionable seasonal greetings to all. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
