The amount of light emitted or the amount of light received are adjusted, and the sensing distance is set.
(The E3X auto tuning type is excluded.)
(1) Through-beam

The amount of light received are adjusted, and the sensing distance is set.
(Refer to below figure)
(2) Reflective, fiber and others

(Emitter and receiver are in the same case)

The amount of light received or the amount of light emitted are adjusted, and the sensing distance is set.
* About the auto tuning amplifier, emitter current and the amount of light received are adjusted depending on a setting distance, and is set to the highest sensitivity.