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Abstract

An improved gas analyzer system (FIG. 1) and method of use for detecting and displaying the partial pressures of certain constituent gases in a respiratory gas stream, the system comprising an optical bench (111) through which a respiratory gas flows and in which measurements of the gas are taken; analog input circuits (122) for receiving signals output from the optical bench (111) through which a respiratory gas flows and in which measurements of the gas are taken; analog processing circuits (124) for processing signals output from the analog input circuits (122); display processing circuits (128) for processing the signals output from the analog processing circuits (124) and other system circuitry; pixel logic circuits/analog outputs (130) for processing signals output from the display processing circuitry (128) and providing analog output ports; a five button panel (148), an alarm/knob board (144), and a speaker driver (152) for operator interface and activation of audible and visual alarms; a CRT driver for driving a CRT; and a power supply (158) for powering the system.

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First Claim