[volt-nuts] traceable calibration
gbusg
gbusg at comcast.net
Sat Sep 10 00:50:13 UTC 2011
Andreas wrote:
>In the meantime I have found the Keithley calibration page on web which
>answers the questions:
>http://www.keithley.com/services/calibration
>So on Keithley calibration as standard procedure the instrument is
>adjusted when the 70% level of the 1 year accuracy is not met.
>So for the 10V range 70% of 35 ppm will give 25 ppm which
>correspond approximately to the 90 day accuracy.
>With best regards
>Andreas
----------------
That's good information, Andreas.
Keithley's (70% of spec) adjustment guardband sounds like a good strategy.
Thanks for sharing!
Greg
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