[volt-nuts] Thommen Model 230 Multifunction Calibrator

Marvin E. Gozum marvin.gozum at jefferson.edu
Thu Sep 2 14:35:34 UTC 2010

A truly helpful device, from a company not known to make such.  How 
accurate is it to % or ppm?

I could not find anything on it either via the 'net.

At 09:55 PM 9/1/2010, Elio Corbolante wrote:
>For few euros I got this portable calibrator:
>*Thommen multifunction calibrator Model 230*
>see pictures at:
>I was able to test it on the output voltage mode and it seems rather precise
>(tested with a Solartron 7150+)
>Unfortunately I wasn't able to find any info on its usage in the other
>different modes (current/resistance/...).
>I tried to contact Thommen AG but with no avail...
>Do someone of you have more info/manuals/... about this calibrator?
>.    ciao
>_      Elio.


Marv Gozum
Philadelphia, PA 

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