How does a flue gas analyzer work?
A flue gas analyzer will enable you to measure the concentrations of various gases and adjust burners on a boiler to help achieve optimal combustion. Efficient combustion also reduces emission of pollutants such as nitric oxide (NO), nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter.
What should the co CO2 ratio be?
The calculations suggest that, to avoid occasional exceedence of the room CO limit, the CO/CO2 ratio should in many cases be lower than 0.02, and in some cases lower than 0.01.
What is the maximum permissible CO reading?
In the USA the Environmental Protection Agency (EPA) have set a maximum level of CO in the flue at 400 PPM. In the home a concentration of no more than 9 PPM is recommended.
What is the maximum CO CO2 ratio?
When a manufacturer has not specified the maximum amount of CO in the flue of a condensing boiler, the HHIC states that the maximum amount of CO must not be more than 350 PPM (Parts Per Million) and the Combustion Ratio is less than or equal to 0.0040.
What should the CO CO2 ratio be?
How often does a flue gas analyser need to be calibrated?
Every Year
Every Year! It is an industry requirement to have your FGA professionally calibrated and recertified every year. British Standard BS7967 & Technical Bulletin TB143 and European Standard BS EN: 50379 clearly state FGAs must be professionally calibrated and not used if they have expired calibration dates.
What is the ideal O2 content of flue gas?
between 8.5-10% oxygen
In residential furnaces, optimum fuel-air ratio results in the oxygen level being reduced from 21% (fresh air) to between 8.5-10% oxygen by volume after combustion. To test the oxygen level, a tool called a combustion analyzer is used to measures the amount of oxygen remaining in the flue exhaust gas.
What level of oxygen is fatal?
Oxygen saturation values of 95% to 100% are generally considered normal. Values under 90% could quickly lead to a serious deterioration in status, and values under 70% are life-threatening.
How do you calibrate a flue gas analyzer?
Isolate the sample gas and open the valve of zero gas (N2 gas) , then select zero calibration menu then enter the concentration of zero gas value, press enter and wait for sometime to stable the readings, after stabilizing the reading press enter for zero calibration.