Non Flush Mounting
Surface mounted sensors have a higher switching distance than identically constructed flush mounted devices and are not surrounded by a metall housing in the area of the active
surface. Therefore, the active surface of a surface mounted sensor has to stand out at least 2x Sn from the metallic mounting space. The distance to faced metallic surfaces mounts ≥ 3 x Sn and to faced or in parallel mounted sensors ≥ 3 x diameter.