Calibration of ADC 212

 
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jia-shiuan tsai
Guest
PostPosted: Tue Dec 13, 2005 8:33 am    Post subject: Calibration of ADC 212 Reply with quote
Hello,

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.
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jia-shiuan tsai
Guest
PostPosted: Tue Dec 13, 2005 8:37 am    Post subject: Reply with quote
P.S. Of course, I've already tried the newest version of PicoLog.
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Michael
Guru
Guru


Joined: 07 Jul 2005
Posts: 93
Location: St Neots, Cambridgeshire
PostPosted: Wed Dec 14, 2005 11:57 am    Post subject: Reply with quote
Hello,

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
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Jia-Shiuan Tsai
Guest
PostPosted: Thu Dec 15, 2005 6:54 am    Post subject: Reply with quote
Michael,

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.

(http://www.picotech.com/distribl/taiwan.html),

they suggested me buying a new one.... Rolling Eyes
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