Sensitivity test system for photoelectric smoke detector

Details Sensitivity test system for photoelectric smoke detector Sensitivity test system for photoelectric smoke detector

G - Physics

08

B

340/77, 73/0.5

G08B 29/00 (2006.01) G08B 29/14 (2006.01)

Patent

CA 1145432

A B S T R A C T A tester device is disclosed for a photoelectric smoke detector. The tester, when actuated, increases the intensity of light emitted by a light source to simulate in the sample chamber by such light scattering and reflecting off chamber walls, an amount of light which would be scattered by a predetermined concentration of smoke to which a photo- electric sensor is responsive and causes an indication that the detector is functioning as intended.

339650

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