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: >http://www.rhodiatoce.com/pics/Thommen/Thommen_Model230_front.JPG >http://www.rhodiatoce.com/pics/Thommen/Thommen_Model230_lateral.JPG > >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. Sincerely, Marv Gozum Philadelphia, PA