AU models are the newest single-range analytical balances engineered with the UniBloc technology. This provides fast response and superb stability in a 0.1mg analytical balance. Various application functions, two modes of fully automatic calibration and back lit display support any imaginable requirements. Automatic span calibration Choice of fully-automatic calibrations: PSC and Clock -CAL Operator can choose from two types of fully-automatic span calibration methods. "PSC" is initiated based on temperature change detection, and "Clock-CAL" operates at user pre-set times (up to three times a day).