[volt-nuts] Calibration

[J. Forster]

Well, you can calibrate it to the standards you have. The resolution will
still be there, but the absolute accuracy will not.

Do you REALLY NEED the absolute accuracy?

-John

================


> Hello fellow nut-cases.
>
> What does everyone do for calibration? I recently powered an instrument
> (HP 3468A) and it displayed "ERROR 1" - which means the battery backed CAL
> RAM values are kaput. I popped the cover to discover the battery had been
> replaced at some time (it is putting out the required 3Vdc) but the RAM
> contents have probably been toast since then.
>
> The service manual is available online from Agilent. Required calibration
> equipment is well beyond my meager 'home lab'? inventory. I have a couple
> of GR resistance standards at 0.01%, but the cal procedure calls for
> 0.0005%. Some of the tests require a voltmeter that has 10x the accuracy
> of the 3468A? **AND** has been calibrated to that accuracy within the
> previous 24hours of running the 3468A cal.
>
> I also have a couple of Solartron 7060s (one re-branded as a WESTON 7060),
> a Solartron 7081 and miscellaneous toys.
>
> So aside from selling my car to pay for NIST traceable calibration for all
> this equipment, what other options are there?
>
> Best,
> Jerry
>
> p.s.  The time-nuts T-bolt group buy lets me do the frequency related
> stuff.? Thanks TAPR!
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