[volt-nuts] What's the probability of a random used 3458A passing a Keysight calibration?

Dr. David Kirkby drkirkby at kirkbymicrowave.co.uk
Tue Jan 16 08:47:56 EST 2018


On 16 January 2018 at 13:44, Dr. David Kirkby <
drkirkby at kirkbymicrowave.co.uk> wrote:

> Maybe an Agilent meter might be a sweet spot - not as old as an HP, so but
> less stable than a newer Keysight.
>
> Dave
>

I meant to say, maybe an Agilent meter would not have the reliability
problems of an older HP, but be more stable than a new Keysight.

Does anyone know how old the units have to be to reach maximum stability?
Is it the LTZ1000A reference that improves with age, or the ADC? I assume
the zener reference, but I don't know.

Dave


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