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

G08B 29/14 (2006.01) G08B 17/103 (2006.01) G08B 29/04 (2006.01) G08B 29/22 (2006.01)

Patent

CA 2140585

A photoelectric smoke detector has test circuitry for testing the detector by increasing the sensitivity thereof. The sensitivity is increased by either altering a bias condition of a photosensor or by altering a gain parameter of the detector. The detector returns to a quiescent state when the sensor returns to its original bias condition or when the gain parameter returns to its quiescent value.

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