An automated system for continuous monitoring of CO2, CO and O2 in boiler flue gas / R.K. Jeffrey and G.K. Lee, Fuels Research Centre. : M34-20/115E-PDF

“The report describes an automated system for sampling, analyzing and recording constituents of boiler flue gases. The system employs non-dispersive infrared spectrophotometers for analyzing CO2 and CO and a thermomagnetic sensor for analyzing O2. Each analyzer is supplied with a clean, dry stream of flue gas to ensure a high degree of analytical sensitivity, selectivity and accuracy. Response time between sample inlet and readout is less than 40 sec because the three analyzers require only about 2 per cent of the total sample flow. The system has been in operation for over three years and during this time it has been proved reliable, rugged and trouble-free"--Abstract, p. i.

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