> -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of John Woodgate > Sent: Thursday, March 12, 2009 12:20 AM > To: [email protected] > Subject: Re: Ungrounded (was RE: scope probe gnd) > > In message <[email protected]>, > dated Wed, 11 Mar 2009, Bill Owsley <[email protected]> writes: > > >Floating a scope is not just lifting the ground
> >Floating for me is using an isolation transformer - there is no Long ago, when Tek 7000 series oscilloscopes were high-tech, we had placed one atop a 6-foot high 19" rack cabinet. One day, a customer gave us a little extra help by rolling the rack for us. Of course, a massive crash ensued, as the rack moved out from under the Tek scope. We tried to assign the blame to the fact that the scope wasn't floating. (Yeah, it wasn't that funny then, either.) Ed Price [email protected] WB6WSN NARTE Certified EMC Engineer Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 Military & Avionics EMC Is Our Specialty - 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]>
