Not necessarily, if you follow the service manual's procedure, you can replace the backup 3V cell safely, keeping the calibration data: the problem is checking periodically the backup cell or replacing it regularly (say, every 5 years).
On Tue, Nov 17, 2015 at 12:33 PM, davidh <[email protected]> wrote: > > > Hi Angus, > > I have three 6681s operating concurrently under a single instance of timelab > beta. It operates perfectly, even live n-cornered measurements. Kudos to > John! > > The only downside (and I understand why it's this way) is that each counter > needs a unique GPIB interface, but this is a timelab requirement and nothing > to do with the counters. > > My only fear regarding the counters is that I'll lose the cal one day, so > I'm keen to discover how we can calibrate them ourselves. > > Cheers, > > david > > > On 17/11/2015 7:32 AM, Angus wrote: >> >> Hi, >> >> PM6681's turn up at quite a good price too, and you get a lot of >> extras over the 6680 - does anyone know if Timelab will work with a >> 6681? >> >> Angus. >> >> >> >> On Sun, 15 Nov 2015 15:10:42 -0800, you wrote: >> > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
