[volt-nuts] Keysight 3458A vs Keithley 2002 8.5 digit multimeters.

[Dr. David Kirkby (Kirkby Microwave Ltd)]

On 18 Jul 2016 17:34, "John Phillips" <john.phillips0 at gmail.com> wrote:
>
> Most labs never turn 3458As off. The longer they are on the lower the
drift
> rate. I would rather have an 20 year old meter with new batteries than a
> new meter.

If one buys a used meter, one has no idea if it has been switched on very
occasionally or on 24/7.

Do you keep your meter powered up during the transit between your lab and
the cal lab? I would think that quite difficult if you used a courier,  but
not a problem if it was taken in a car.

Dave.