Fabrication and testing of a prototype handheld electrochemical CO monitor

A portable carbon monoxide monitoring instrument was developed for use by the gas utility service industry. A promising instrument was designed and tested under laboratory conditions. The instrument uses a stripping voltammetry technique to measure carbon monoxide. Prototype electrochemical sensors were fabricated and tested under a variety of environmental conditions. The sensor can measure carbon monoxide concentrations of greater than 10 ppm in both ambient air and directly in flue gases. A microprocessor based electronic circuitry was designed to allow totally automated operation of the instrument.