9. Rotating the optical RX find the maximum value of which corresponds to the ALIGNMENT LED
(high-brightness) FIXED and whistle CONTINUOUS of the BUZZER.
10. Exit the function by repressing the ALIGNMENT TEST button for about 3 seconds on both optics
(TX-RX) ensuring that the orange LED TEST is shown in original condition.
11. When finished, remove the shade that acts as a attenuator, with the certainty of having found the
optimum value.
12. Once the alignment of all the beams is finished, re-press the test button on the motherboard for 5
seconds until the LED turns off.
For the next 30 seconds the barrier will sound continuously in case of alignment not effective or
interruption of a beam; correct the orientation of the columns so that the buzzer emits no longer any
sound.
.