I have a pH probe with the DrDAQ kit and when connected to the Pico card, it doesn't seem to read appropriately. When I received it in the mail, the bottle solution had dried out. I re-wetted it and then I attached it to a free-standing pH meter it works perfectly fine, calibrated appropriately for 10, 7 and 4 range as normal.
I had intended to leave the probe and log change in pH of my NaOH solution over time, but after a 3hr run, I found that the pH had not changed significantly when it should have with what I was doing to the solution.
The reading for supposedly pH13 NaOH turns out to be only reading 6.5, and when put into pH10,7,4 solutions when attached to the DrDAQ card, it sits between 6.5-7.
Is this a software issue? Since the probe appeared to operate fine when attached to another measurement device.