The Teledyne ML9832 Carbon Monoxide (CO) analyzer is a non-dispersive infrared (IR)gas correlation spectroscopy to provide accurate, stable and reliable measurements of CO in typical combustion effluent monitoring applications. The Teledyne ML9832 covers the CO range from 0-200 ppm to0-3000 ppm. This instrument is typically used in conventional extractive (dry sample gas) systems for combustion control and emission monitoring applications. The Teledyne ML9832 shares the features common to the Teledyne ML9800 family of analyzers.

The Teledyne ML9832 analyzer measures the absorption of infrared radiation (IR) within a folded path measurement cell. Broadband infrared radiation is directed through a rotating gas filter wheel where one cell contains CO and the other cell contains N2. When the IR radiation passes through the CO half of the wheel, all wavelengths at which CO can absorb are completely removed from the radiation, leaving   those wavelengths that are unaffected by CO to create a “reference” beam.   When IR radiation passes through the nitrogen half of the wheel, CO-specific wavelengths are not removed from the radiation and a “measure” beam, is created which will be attenuated by any of the CO sample. An additional optical filter selects the CO absorption band of interest. The rotation of the gas filter wheel thereby provides the advantages of a dual channel measurement system using a single channel analyzer.

The alternating beam is passed through a multi pass absorption cell (White cell) containing the gas sample to be measured. Since both the ”reference” and “measure” channel measurements have the same source, detector and optical path only the amount of CO in the sample cell can effect the difference in intensity between the two beams. By taking the ratio of these two measurements the resultant Teledyne ML9832 output is very insensitive to interferent gases, fluctuations in the IR source, vibration and accumulation of dust on the optics.

FEATURES

• Meets U.S. EPA 40CFR60, Appendix B performance specifications 4 and 4A.

• Meets dual range CO requirements for boilers and industrial furnaces (BIF) burning hazardous material (40CFR266, appendix IX, Section 2.0) with a SINGLE RANGE ANALYZER.

• High Range Continuous Emission Monitoring Systems applications (CEMS) to 3000 ppm.

• CO for trim control of boiler air/fuel ratio provides safe and fuel efficient operating conditions

• Serial RS232 and analog outputs.

• Local or remote control from PC terminal.

• Optional floppy drive provides backup data storage.