I am using 3 units of adc212/100 for my application. What I have noticed in the 10 V range is when I apply a pulse of faster rise time like 1 micro second in the negative polarity, channel B is not responding properly . Where as for a positive polarity it is responding correctly for the same settings. All the 3 units are behaving in the same manner. I believe that this is a hardware problem. I have sent the waveforms to Pico technical support and awaiting reply. Will you be able to check 10 V range of channel B for Negative polarity for a faster rise time pulse for some other ADC 212/100 unit in your factory and give a feed back? If required I will send the recorded waveforms by e-mail.
E. Muthu Kumar.