Configuration of entrance systems having one or more movable door members

A configuration method for an entrance system having:

• a door movable member comprising a door leaf with a first vertical edge and a second vertical edge, an automatic door operator comprising a motor configured to cause movement of the door member, and a sensor unit mounted at or near the second vertical edge for monitoring a zone at or near the door leaf for presence or activity of a person or object, the configuration method comprising:
• capturing an image of an external object at the first vertical edge of the door leaf;
• processing the captured image to identify an optical code and recognize a learning mode trigger instruction encoded therein;
• triggered by the recognizing of the learning mode trigger instruction, automatically entering into a learning mode of the sensor unit;
• and
• in the learning mode, as entered upon being triggered by the recognizing of the learning mode trigger instruction, automatically measuring a distance between the sensor unit and the external object at the first vertical edge, and setting a field width parameter value of the sensor unit based on the measured distance.