Hi Group,
THANKS for your very much appreciated responses!! I was in panic mode!! I thought it would be appropriate to let you know the status. My product is a small all plastic enclosure Point if Sale (POS) Class III terminal. It has an external SMPS, Class II, no earth, supplying SELV, 12Vdc 1.5A to my product. The power supply works OK with some of our other products, for EMC. The problem is with my product. I solved the problem at the test house by wrapping a few turns of the DC PSU cable through a "Large" Ferrite Clamp at the Product input (it did not work so well at the PSU I/P nor O/P). The fix cannot be considered final due to obvious reasons. I am now at my Lab, now the serious diagnostics begin. I have been trying various "quick fixes" to no avail i.e. Caps, TVS, MOV etc. If you have any further comments feel free to email me. THANKS again to all those who responded with their thoughts. I can tell you they were wide and varied just as you would expect to trying to resolve an EMC problem over the NET!! Best Regards alex.mcn...@ingenicofortronic.com > -----Original Message----- > From: Alex McNeil > Sent: 22 October 2001 11:23 > To: emc-p...@majordomo.ieee.org > Subject: EFT Failures..Help! > > Hi Guys, > > I am at an EMC test centre today and tomorrow. Unfortunately, my product > failed EFT testing on the AC power port at 1KV. This is for various > combinations of Line, Neutral and Earth (L, N, E, LN, LE, NE and LNE) > > My product is Class II, no Earth. It is supplied by an external power > supply. This supplies SELV to my product. The power supply manufacturer > has stated that his power supply meets EN61000-4-4 for 2KV and has emailed > me this report to verify this. > > Has anyone got a quick solution to my problem so that I can implement here > at the EMC test house? > > Kind Regards > Alex McNeil > Principal Engineer > Tel: +44 (0)131 479 8375 > Fax: +44 (0)131 479 8321 > email: alex.mcn...@ingenicofortronic.com > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
