Oxygen and carbon monoxide equivalent (COe) analyzer
Endura AZ40

The AZ40 oxygen and combustibles analyzer continuously samples and analyzes combustion waste gases, often referred to as flue gas. The AZ40 determines the levels of excess oxygen using a zirconia based oxygen sensor and unburnt fuel with an enhanced carbon monoxide detector to measure the carbon monoxide equivalent (COe).



Accurate measurement of both oxygen and COe is important for the safe, reliable and efficient operation of industrial combustion plant.

– carbon monoxide detector
– flue gas
– combustion analysis
– combustion analyzer.


  • Oxygen only or oxygen plus combustibles
    – increased combustion efficiency
    – burner malfunction identification
    – enhanced plant safety
  • Close-coupled sample system
    – integral flame arrestors
    – stable sample temperature and pressure
    – heated sample path
  • Comprehensive diagnostics
    – NAMUR-compliant diagnostic symbols
    – supports predictive maintenance
    – fully logged diagnostic events
  • Automatic sensor calibration
    – fully programmable schedule
    – locally triggered
    – accuracy check
  • Process logging and trending of all measured and
    calculated values
    – oxygen and carbon monoxide equivalent (COe)
    – process temperature measurement
    – combustion efficiency calculation
  • Multiple sample filter and blowback options
    – optional dual filtration system
    – fully programmable blowback


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