| 摘要 |
A method of calibrating a combined carbon monoxide and carbon dioxide detector, and a combined carbon monoxide and carbon dioxide detector comprising a carbon monoxide sensor, a carbon dioxide sensor, and a carbon monoxide and carbon dioxide gas generator 12 are disclosed. The method of self- testing the carbon monoxide and carbon dioxide detector comprises the steps of controlling the carbon monoxide and carbon dioxide gas generator 12 to generate a known quantity of carbon monoxide and carbon dioxide; monitoring the response of the carbon monoxide sensor to the known quantity of carbon monoxide; monitoring the response of the carbon dioxide sensor to the known quantity of carbon dioxide; and correcting the calibration of the carbon monoxide sensor and/or the carbon dioxide sensor when the response is outside of a predetermined range. |
