You could pull the whole spool off and make your 2nd junction from the last bit, then re-wrap the whole spool :-)
I talked to a UL team lead on their DAP/ISO 17025 program and he had the following comments; -This requirement is based on a CTL decision -You must validate one TC from the beginning of the spool and one from the end of the spool with an RTL Calibrator or water bath method -You risk all your previous data if the last TC you make from the spool doesn't calibrate right He also stated that this requirement may change in the future because it doesn't make a lot of sense (and suggested that I bring this particular issue up for discussion if I happened to know anyone who sits on the Standards Commitee!). As another poster stated, you may be better off purchasing pre-made thermocouples. The only risk there is if your manufacturer goes out of business, your calibration certificates may become invalid. -Ken Arenella On Tue, Jun 16, 2009 at 9:50 AM, <[email protected]> wrote: While we are on the subject. Anyone have an inexpensive solution to the big NRTL's new Calibrated Thermocouple requirement? As I read the spec it requires calibrating the first and last T-Couple off of the spool minimum. Takes me a couple years to use 500ft. So I would technically only need to Calibrate one a year. Thanks in advance John Merrill Principal Product Safety Engineer Schneider Electric - ---------------------------------------------------------------- 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]>
