I've been screwing around with calibration more, and have noted the following things:
- It's best to work on one range at a time.
- Getting the source current to a far higher accuracy than suggested is helpful.
- You have to reset back to 61A8 before readjusting, which makes the process slightly more tedious.
I've found, at least with my setup, getting the negative values more accurate to be more challenging. I'm going to try the sequence again and see if I can get my starting numbers better.
For the record, this is entirely silly. The goal is to be within 1.5% margin of error... I started with the 1mA range at 0.326%, and got it to 0.305%, but want it better than that.
I was able to get the 10mA range to 0.006%. Supposedly. 😉
Thanks,
Josh