System for monitoring operability of fire event sensors

Details System for monitoring operability of fire event sensors System for monitoring operability of fire event sensors

1999-01-27

2000-06-27

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340577, 340515, 340507, 340506, G08B 1712

Patent

active

060811951

ABSTRACT:
A system for monitoring the operability of fire event sensors having a programmable logic circuit which automatically and continuously analyzes whether readings obtained from fire event sensors satisfy multiple predetermined parameters. Parameters defining operability may include the mere receipt of a signal from a sensor, elapsed time between signals, substantive quality of signals, sensor sensitivity, strength of power source, or other parameters. The parameters are modifiable to facilitate many different types of sensors without the addition of any additional circuitry. The system also includes manual testing of the self-checking routine itself as well as checking the circuitry of a fire detection unit and strength of power source. Means for resetting the system is also provided.

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