What does EM Too High error mean with Nitratax sc?
Nitratax sc and EM too high
If EM is between 1000 and 2000 mE (mAUs) the choice in pathlength of the sensor is fine. If EM is much lower than 1000mE, consider using a wider path length. If EM is 2500 mE or greater, a sensor with a smaller pathlength is needed