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Calibration of ADC 212

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Calibration of ADC 212

Postby jia-shiuan tsai » Tue Dec 13, 2005 8:33 am


I have an ADC 212 for almost 2 years. Recently I have found the
measuring value are not accurate.

i.e., I used a well calibrated voltage source to provide DC 5.000V.
however, in PicoLog, the reading was, say, 4.97V and 4.96V for
channel A and B (@ +-20V range). And it was worse in 5V range.

it looks like my ADC-212 needs to do some calibration or fixing.
is it possible for me to do some simple calibration of ADC212?

thanks in advance.
jia-shiuan tsai

Postby jia-shiuan tsai » Tue Dec 13, 2005 8:37 am

P.S. Of course, I've already tried the newest version of PicoLog.
jia-shiuan tsai

Postby Michael » Wed Dec 14, 2005 11:57 am


Only Pico can calibrate our hardware. However, you can build a custom range to calculate an offset in voltage reading.

Please read the help files on Custom Ranges.

Best regards,
Michael - Tech Support
Pico Technology
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Postby Jia-Shiuan Tsai » Thu Dec 15, 2005 6:54 am


Thanks for the reply. I will try "Custon Ranges".

Since I'm in Taiwan, it would cost a lot money aND time if i sent my
ADC212 back to PicoTech in UK.

I have checked local distributors in Taiwan, asked them about calibration.


they suggested me buying a new one.... :roll:
Jia-Shiuan Tsai

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