The ppm of your device should be always 0.5 so use 0 or 1 in ppm field and forget the calibration process.
Use the maximum gain allowed by your device, for most cases 49.6:
Here is the incomplete manual, no text yet, just screenshots
https://openplotter.readthedocs.io/en/la...f_app.html
Use the maximum gain allowed by your device, for most cases 49.6:
Here is the incomplete manual, no text yet, just screenshots
https://openplotter.readthedocs.io/en/la...f_app.html