Steve, I've never calibrated a 7081 but I did use a Solartron Calibrated 7081 as a 'transfer standard' to calibrate a 3458A before I sent the 3458A to Agilent (at the time) for calibration. The 3458A passed every measure 'in spec' when received by Agilent except for one of the ranges on AC voltage, at 100KHz, IIRC. I think I made a post about it several years ago.
I wonder how hard it would be to calibrate a 7081 using a 3458A (or similar) as the 'transfer standard'. However, it will still be slow. Joe -----Original Message----- From: volt-nuts [mailto:[email protected]] On Behalf Of Steve - Home Sent: Sunday, June 30, 2019 7:44 PM To: Discussion of precise voltage measurement Subject: Re: [volt-nuts] What are the best of the low(ish) cost 8.5 digit multimeters? Unfortunately Ametek at Farnborough (where the 7081 was designed and manufactured by Solartron) are no longer calibrating the 7081. I was by there about the time your meters were being calibrated, Joe. I’m not sure they’re even in business now as the last time I was by the business park in February this year their sign was gone. Steve WB0DBS > On Jun 30, 2019, at 8:20 PM, J. L. Trantham <[email protected]> wrote: > > David, > > Have you considered the Solartron/Ametek 7081? > > If I'm not mistaken, you posted some images of their EPROM's several years > ago. > > It's slow sampling at 8.5 digit resolution but seems user friendly and, at > least several years ago, was able to be calibrated by Ametek in England. I > sent two over there for calibration. > > Good luck. > > Joe > > -----Original Message----- > From: volt-nuts [mailto:[email protected]] On Behalf Of Dr. > David Kirkby > Sent: Sunday, June 30, 2019 6:18 PM > To: Discussion of precise voltage measurement > Subject: [volt-nuts] What are the best of the low(ish) cost 8.5 digit > multimeters? > > I would like to get an 8.5 digit multimeter, but an Agilent, Fluke or > Keithley is outside my budget. There are quite a few other 8.5 digit > multimeters around, but I was wondering what is the best of the cheaper > ones. I really don’t want to spend more than £1000 (GBP) and preferably > less. > > There’s a Datron/Wavetek 1271 on eBay at a price of £2450 or offer, but > recent ones sold in the UK have gone for £800. I have emailed the seller of > that, as I have bought from him before. He can sometimes be quite flexible > on prices, especially if one deals outside eBay. > > I want to avoid buying something that is impossible to get calibrated, but > I can’t afford to buy a 3458A or similar. > > 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. > > > _______________________________________________ > 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. _______________________________________________ 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. _______________________________________________ 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.
