I calibrated my sensor 12 days ago and was told by grobo support to calibrate it again so I reordered calibration fluid packs and started calibration again. After the probe was “calibrated”, the application told me to conduct another health check. So I complied and after the health check the application is perpetually stuck at “finishing up” this can take several minutes.
I’ve now power cycled the grobo and reattempted the calibration with identical results. What should I do?
The pH probe is in the 7.0 solution.