GAS MONITORING SYSTEM AND SIDESTREAM GAS MEASUREMENT SYSTEM ADAPTED TO COMMUNICATE WITH A MAINSTREAM GAS MEASUREMENT SYSTEM

摘要

A method and apparatus for interfacing a plurality of gas measurement system s (8, 28, 60), including a mainstream and a sidestream gas measurement system, to a host system (74) via an interface unit (64). The present invention also pertains to a sidestream gas measurement system (80) that outputs signals emulating the signals output by a mainstream gas measurement system or porti on thereof, so that the sidestream gas measurement system can seamlessly communicate with a host system configured to communicate only a mainstream g as measurement system or a portion thereof.