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Rosemount™ CCO 5500 Carbon Monoxide (CO) Analyzer
rosemount cco5500
The CCO 5500 Carbon Monoxide (CO) Analyzer uses infrared absorption spectroscopy to continuously measure CO concentration in combustion flue gases.
The infrared source is mounted directly on the flue gas duct or stack on the side opposite from the receiver. Infrared energy is radiated by the source, through a chopper across the duct to the receiver. The receiver employs gas filter correlation and narrow band-pass optical filtration with two solid state detectors to determine the absorption of radiation by CO in the flue gas.
Rosemount™ CCO 5500 Carbon Monoxide (CO) Analyzer


Measurement Range
Selectable 0-100 ppm to 0-10,000 ppm within the range of 200 to 6,000 ppm.m
± 2% of measurement or ± 5ppm whichever is greater
Path Length
0.5 to 8 m
Process Temperature Range
0 to 650 °C - at temperatures above 300 °C instrument accuracy will deteriorate
Ambient Temperature Range
-20 to 70 °C
Communication Protocol
4-20 mA


  • Rugged lithium tantalate pyro-electric detector allows for highly sensitive and stable CO measurement
  • Optional calibration standard available to assure reliable process information with no calibration gas
  • Representative cross-duct measurement with limited stratification errors
  • Measurements can be displayed as ppm, mg/m3, mg/Nm3 (normalized)