In college I had summer work in a metrology lab where I learned about the real world. I would caution anyone attempting 2 milliohm measurements to proceed with caution. Technology has made it easy for most anyone to make "repeatable" 50-100 milliohm measurements. However, accurate measurements in the 2 milliohm area is not for the faint of heart. I would strongly suggest anyone attempting 10 milliohm or lower measurements to be fully familiar with the difficulties you will encounter in these ultra low resistance measurements. The methodology required to achieve accurate - repeatable measurements at these levels is not trivial. There are many good texts available that outline the issues & recommended procedures necessary for valid measurements at these low levels. Keithly, Fluke, and others have excellent tech notes, books, and references to papers on the subject. While I would never presume to suggest how someone should run their lab, I felt this side issue should be addressed.
For what it's worth. Regards to all. Michael Taylor NCE Hach Company Loveland, CO From: [email protected] [mailto:[email protected]] On Behalf Of Wig Balasingham Sent: Friday, March 11, 2005 7:38 AM To: Amund Westin Cc: EMC-PSTC - Forum Subject: Re: Milliohm meter Keithly will do it too. You may need to order probe separately. http://www.keithley.com good luck. -Wig Amund Westin wrote: > We are going to measure grounding / bonding staps, which shall not > exceed > 2.5 milliohm. > Any recommandation for a well good milliohm meter? > > Best regards > Amund Westin, Oslo, NORWAY > > ---------------------------------------------------------------- > 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/listserv/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: > > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc -- 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/listserv/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: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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/listserv/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: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
