[volt-nuts] Seek full Manual - EDC DC millivolt calibrator E100C

[MG]

I'll add my praise to KH customer service.

It may be worth mentioning who helped you, I had the same issue with 
the MV106 voltage reference and contacted Joe Inglis at KH.

FWIW, when I was researching the analog CR and MV model EDC/KH 
voltage references they all use a similar design, so worse case, any 
of the schematics can serve as a guide.  I wouldn't be surprised if 
the E100 are made similarly.

The are accurate [ >= spec sheet data] and, given their age, are now 
even more stable long term; they are decades old and proven to be 
very well made.  They are designed simply with a lot of derated 
components most of which are not unobtanium, so any potential 
maintenance is not a major chore.  Calibration is all analog pots, 
easy to do and very stable once done.

IIRC great voltage reference better than 1uV resolution and << 
30ppm/yr stability.





At 04:27 PM 3/18/2013, John Lofgren wrote:
>I had a similar experience with an old K-H function generator.  I 
>just called them up and they e-mailed me a scan of the manual.  A 
>thumbs-up from me, too.
>
>Other test equipment vendors should take note.
>
>
>-John
>
>-----Original Message-----
>From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] 
>On Behalf Of cfo
>Sent: Monday, March 18, 2013 3:21 PM
>To: volt-nuts at febo.com
>Subject: Re: [volt-nuts] Seek full Manual - EDC DC millivolt calibrator E100C
>
>On Sun, 17 Mar 2013 20:16:29 -0500, J. L. Trantham wrote:
>
> > CFO,
> >
> > Several months ago, I bought an EDC CR103 DC Current and Voltage
> > Standard and ran into the same problem.
> >
> > I emailed Kron-Hite, asking if the manual was available, if so, how
> > much,
> > etc.  The reply was an emailed .PDF complete manual, schematics and
> > everything.
> >
> > You might try asking them if they still have the manual available, etc.
> > Couldn't hurt.
> >
> > Good luck.
> >
> > Joe
> >
>
>Hi Joe
>
>Thank you for the tip.
>I followed your advice , and emailed Kron-Hite service , asking if it
>would be possible to get a copy of the service manual.
>
>And i just got a very plesant response from
>their Service Department Manager , with the complete E100C service manual
>attached. and a best of luck with the restoration project.
>
>Thumbs up Krohn-Hite , and thank you for the excellent service.
>
>CFO - Denmark
>
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Sincerely,



Marv Gozum
Philadelphia, PA