Method for operating a portable electronic device

摘要

In a method for operating a portable electronic device comprising a chemical sensor (1), at least one reference reading is taken by the chemical sensor (1) at at least one predetermined point in time (t i ). At least one compensation value is determined based on at least one reference value (RV) wherein each reference value (RV) is derived from a result of a corresponding reference reading. A result of an operational reading of the chemical sensor (1) is modified by the at least one compensation value.