Teach-In:You can use the rotary switch to select the relevant switching threshold A and/or B for teaching in for switching output Q1.The yellow LEDs indicate the current state of the selected output.To store a switching threshold (distance measured value), press and hold the "SET" button until the yellow and green LEDs flash in phase(approx. 2 s). Teach-In starts when the "SET" button is released.Successful Teach-In is indicated by alternating flashing (2.5 Hz) of the yellow and green LEDs.An unsuccessful Teach-In is indicated by rapidly alternating flashing (8 Hz) of the yellow and green LEDs.After an unsuccessful Teach-In, the sensor continues to operate with the previous valid setting after the relevant visual fault signal is issued.Different switching modes can be defined by teaching in the relevant distance measured values for the switching thresholds A and B:Every taught-in switching threshold can be retaught (overwritten) by pressing the SET button again.Pressing and holding the "SET" button for > 5 s completely deletes the taught-in value. The yellow and green LEDs go out simultaneously to indicatethat this procedure has been completed.