the invention relates to a method for adjusting a sensor device for determining the rotational position of an electronically - commutated motor with rotor and stator , where the sensor device is fitted in a specific position relative to the rotor , the increments generated by the sensor device being recorded while the rotor is rotating , the angular position of the rotor being recorded while the rotor is rotating , and the correlation of the recorded angular position with the sensor device increments being subsequently saved .