I cannot reproduce the entire copyrighted manual. However, you can obtain it directly from Keyence:

is built for high reliability and compliance with major safety standards like and SIL 3 . Operating Distance : Front : Sao (OFF→ON) is 10 mm; Sar (ON→OFF) is 18 mm. Side : Sao (OFF→ON) is 6 mm; Sar (ON→OFF) is 14 mm.

: Ensure the actuator and the main unit are aligned within the specified sensing distance (typically 0.5 to 10 mm) to avoid "chattering" or intermittent signals.