System and process for calibrating a combustion gas analyzer

Claim 2

A process for calibrating a computer-based combustion gas analyzer, said process comprising: (a) sequentially introducing into and removing from the analyzer, members of a series of calibration gases each having a different, known concentration (C i ) of the combustion gas; (b) generating a series of measurement values (R i ) to correspond, one to each known concentration (C i ) of combustion gas; (c) determining the coefficients A j in the equation: ##EQU2## (d) entering the coefficients A j into the computer of the analyzer.

Claim 3

A process according to claim 1 wherein the combustion gas is carbon monoxide (CO).

Claim 4

A process according to claim 1 wherein the combustion gas is carbon dioxide (CO 2 ).

Claim 5

A process according to claim 1 wherein the measurement values (R i ) are produced according to the following steps: (a) transmitting a beam of radiation through the calibration gas to impinge upon a detector forming part of the analyzer; (b) generating a first signal according to the radiation transmitted through the gas and impinging on the detector; (c) transmitting a beam of radiation through the calibration gas and through a cell filled with substantially pure combustion gas to thereafter impinge upon the detector; (d) generating a second signal according to the radiation transmitted through the gas and the cell and impinging on the detector; (e) calculating a measurment value (R i ) according to the ratio of the first and second signals.

Claim 6

A process according to claim 1 wherein the values of the coefficient A j are between about 10 to 10 -6 .

Claim 7

A process for utilizing a combustion gas analyzer to control a fuel-burning system which generates combustion gases, said process comprising: (a) directing a beam of radiation through the combustion gases to impinge upon a detector forming part of the combustion gas analyzer; (b) in the analyzer, generating a value (R i ) corresponding to the concentration (C) of a constituent of the combustion gases; (c) calculating the concentration (C i ) of the constituent by the following equation: ##EQU3## in which the values of A j are predetermined; and (d) utilizing the calculated concentration (C i ) to control the fuel-burning system.

Claim 8

A process for utilizing a combustion gas analyzer to control a fuel-burning system which generates combustion gases, said process comprising: (a) directing a beam of radiation through the combustion gases to impinge upon a detector forming part of the combustion gas analyzer; (b) in the analyzer, generating a value (R i ) corresponding to the concentration (C) of a constituent of the combustion gases; (c) calculating the concentration (C i ) of the constituent by the following equation: ##EQU3## in which the values of A j are predetermined; and (d) utilizing the calculated concentration (C i ) to control the fuel-burning system.