Pat:
Could it be that you are frightening the test houses by requesting a "calibration" when perhaps all you need is a "validation?" When you ask for calibration, a lab automatically thinks of an approved calibration procedure. You may need calibration, if your generator does not meet acceptable output performance. OTOH, if all you want is a competent lab that will measure the pulse generator waveforms and pronounce the output voltage, current and waveform accurate to some traceable level of accuracy, then most any good lab should be willing to do that. If the generator is out of tolerance, then fixing that might be interesting, as the design may not include adjustable components, and you might have to swap in new parts and custom tweak things. That would be beyond what a production metrology lab would be comfortable with, and you might have to find somebody who likes circuits more than certificates. Ed Price WB6WSN Chula Vista, CA USA From: CR [mailto:[email protected]] Sent: Monday, March 03, 2014 12:35 PM To: [email protected] Subject: Re: [PSES] Schaffer surge generator I once spent some time at a Southern California lab that built their own damped sinewave circuit only to have an assessor forbid its use because it couldn't be calibrated. Next; NIST traceable connectors? Cortland Richmond On 3/3/2014 1:18 PM, Pat Lawler wrote: All, I need to calibrate our Schaffer NSG2050/PNW2055 surge generator. Two cal houses have 'no bid', and I'm waiting for Teseq to reply. Any suggestions for facilities in (or near) California? Pat - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
