초록 ▼

Described is a system for measuring noxious gas concentration in an affected space and for controlling the device producing the noxious gas or for decreasing the concentration of the gas in the affected space. The invention is particularly described in relation to measuring carbon monoxide concentra

Described is a system for measuring noxious gas concentration in an affected space and for controlling the device producing the noxious gas or for decreasing the concentration of the gas in the affected space. The invention is particularly described in relation to measuring carbon monoxide concentration in an automobile garage and for controlling the garage door opener circuit to open the garage door in response to a preselected concentration of carbon monoxide. Also described in particular is a system for deactivating a furnace operating circuit to turn off the furnace in the event of excessive carbon monoxide concentration.

대표청구항 ▼

A carbon monoxide gas detector and controller for controlling a device producing the carbon monoxide gas and for decreasing the concentration of carbon monoxide in an affected space, the controller comprising: a detector for measuring the concentration of the gas, the detector capable of producing a

A carbon monoxide gas detector and controller for controlling a device producing the carbon monoxide gas and for decreasing the concentration of carbon monoxide in an affected space, the controller comprising: a detector for measuring the concentration of the gas, the detector capable of producing a signal when the carbon monoxide concentration reaches predetermined levels, a microprocessor in electrical communication with the detector for receiving the signals from the carbon monoxide detector; means for visually or audibly indicating a first predetermined level of carbon monoxide gas said means operatively connected to the microprocessor; a relay in electrical communication with the microprocessor and including a first normally open contact for activating the electrical power circuit of a device for decreasing the concentration of gas in an affected space and a second normally closed contact for deactivating the electrical power circuit of a device producing the gas, when the detector senses a second predetermined level of gas, said microprocessor energizing the relay when the detector senses second predetermined level of gas; the microprocessor operative to actuate the visual or audible indicating means when it receives a signal from the detector representing the first predetermined level of gas and activating the relay when it receives a signal representing the second predetermined level of gas; means for deactivating the detector and controller in the event of a malfunction; the microprocessor capable of sensing a malfunction of the detector and activating visual or audible means for indicating the malfunction.