For fire protection gates, the Pepperl+Fuchs/ Visolux line includes specially certified and approved light barriers. These are for use in fire protection doors, gates and shutters which normally remain open, but must be closed in case of fire.
The German fire protection regulations require monitoring with appropriate safety systems. The technical challenge is to reliably detect people in smoke filled areas, despite the influence of any smoke build-up. This function is fulfilled by the fire protection light barriers by Pepperl+Fuchs/ Visolux.
In the range of the sensors for fire protection light barriers there are two different principles of operation:
- Single path fire light barrier
- Fire protection reflection light barrier with polarization filters