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Delta Measurements

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CO & O₂ Combustion Monitor

Accurate and reliable CO measurement is key to improving combustion. The EES Delta Measurement system provides data for continuous combustion tuning and optimization allowing plants to operate closer to ideal fuel to air ratios without unit damage resulting in the following benefits:

  • Reduced NOx emissions
  • Improved heat-rate or fuel efficiency
  • Reduced FEGT and slagging
  • Improved reliability and availability, reduce de-rates
  • Decrease in water-wall wastage and tube leaks
  • Reduction of LOI

Dry extractive O2 measurement ensures boiler operation in the optimized combustion zone. EES Delta Measurement's dry extractive O2 measurement probes utilize an in-line zirconium oxide sensor and can continuously measure O2 in furnace areas where conventional O2 probes cannot.

Electronics Specification

  • CO Measuring Ranges: 0-1000, 0-2000, 0-5,000 and 0 to 20,000ppm
  • Sensitivity: 1ppm
  • Accuracy: Dependent on full scale ranges, 2ppm detection limit on 0-1000ppm
  • Sample Flow Rate: < 1L/min
  • Non-depleting, heated IR measurement bench for CO output
  • CO2 compensated output, and discrete CO2 output
  • Auto-zero using ambient air reference with programmable cycle time
  • Analog 4-20mA output of CO value and O2 value with one (1) fault alarm output
  • Programmable probe purge sequences
  • HMI trending with time stamp and programmable log interval
  • Integral peak hold value of CO
  • Touch screen display and configuration.
  • O2 measurement from heated zirconium oxide cell
  • One touch and auto calibration functionality