FIRE DETECTOR WITH SEVERAL ANALYSIS VOLUMES

摘要

The invention relates to a fire detector (1) working according to the scattered radiation principle and comprising at least one radiation emitter (5.1,5.2,5.3) and at least one radiation receiver (6.1,6.2,6.3), whose radiation paths form a scattering volume (7.1,7.2,7.3). The fire detector (1) comprises, in addition to at least one first radiation emitter (5.1) and a first radiation receiver (6.1), at least one second radiation emitter (5.2) and a second radiation receiver (6.2) whose radiation paths form at least two locally distanced scattering volumes (7.1, 7.2).