On Mon, 1 Jul 2019 at 03:29, David C. Partridge < [email protected]> wrote:
> The huge "elephant in the room" problem is finding a calibration lab with > an error budget that's actually good enough to calibrate *any* 8.5 digit > meter. More like than not (barring faults) your meter will probably be > more accurate and stable than any of their calibration equipment. I > don't know of any in the UK apart from Fluke and Keysight (I would love to > hear that there are others). I don’t know if Keysight will calibrate other manufacturers equipment if you are a small company, but they certainly did (do??) for very large companies. A friend who worked for Selex, which is a multi billion pound defence company, said the management in Selex outsourced their calibration to Keysight. Selex had their own metrology lab, but Keysight quoted calibration prices far below the cost to get instruments calibrated internally. My friend said that this was a false economy, as Keysight charged extra for a trivial task that Selex’s metrology lab would do and not record. So it is worth asking Keysight, although I expect if Keysight will calibrate non HP/Agilent/Keysight equipment, it might only be if Keysight get a very large contract. Keysight UK can't do the top spec calibration on a 3458A (so called > Loveland calibration) so if you want that, AFAIK it has be return shipped > to California, USA (though I've heard that Germany *may* have a Josephson > junction setup). I asked on a visit to Keysight (UK) if they could calibrate a 3458A, to which I was told yes. I might be mistaken, but I thought I was told that they have a JJ. Since Keysight are UKAS accredited, their uncertainties will be given on the UKAS website. I don’t know if NPL would calibrate an 8.5 digit multimeter. They might do, but I doubt that will be cheap. Dave -- Dr. David Kirkby, _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there.
