Remove any objects from in front of the sensor. Position the sensor so that the beam is aligned to the reflector. (You will be able to see the beam on the reflector).
Using a small tool, press and hold the yellow auto-set button on the top of the sensor.
After the sensor is trailed properly, the green and orange LEDs will be illuminated.
To ensure the sensor is properly trained, break the sensor's beam with your hand. When the sensor is blocked only the green LED will be illuminated.
Next, remove your hand to unblock the sensor's beam. Both the Green and Orange LEDs will be illuminated.
