I have tried multiple python scripts to get the output of this to come across to a Raspberry Pi 4. I am using the i2c shield from NCD with the PR33-7. If I disconnect power from the signal generator, the output goes from ~1.5 to ~-4.75. Adjusting the output of the signal generator does not change the signal generated.
If someone could point the way to how to read this from python, I would appreciate it.