[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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