How does a gas analyzer work?
How does a gas analyzer work?
An infrared gas analyzer measures trace gases by determining the absorption of an emitted infrared light source through a certain air sample. Infrared light is emitted from some type of source on one end of the chamber, passes through a series of chambers that contains given quantities of the various gases in question.
Which exhaust gas indicates a rich condition?
Carbon Monoxide (CO) Is partially burned fuel known as a rich indicator. CO is a highly poisonous and displaces oxygen in the bloodstream.
What causes high CO readings?
Possible Causes of High Carbon Monoxide (CO) Emissions Fuel can only come from three sources: the crankcase vapor control system, the evaporative control system, or the actual fuel delivery system.
What should flue gas Analyser readings be?
Flue gas analysers usually display a CO/CO2 ratio. This shows the ratio of carbon monoxide and carbon dioxide in the exit flue (chimney) of the appliance. Generally when this level is below 0.004 the boiler is considered to be running efficiently. For oil or coal fired appliances the CO should not be above 200ppm.
What is an exhaust gas analysis Why is it done?
The exhaust gas analyser is used for measuring 4 gases, oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2) and hydrocarbons (HC) as well as calculating lambda (λ) a measure of air/fuel ratio. These measurements together provide a very accurate way of measuring the combustion efficiency of an engine.
How do you calibrate a 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.
Why is gas analyzer used?
A gas analyzer is an analytical instrument used to identify the concentration of known gases in an atmosphere that contains multiple gases. It is used to monitor and assist in areas such as process safety improvement, quality studies, efficiency analysis, and emissions monitoring.
What causes high HC in exhaust?
Ignition defects including dirty spark plugs, leaking or open-circuited spark plugs or wires, or defective ignition coils can all result in a shortage of spark energy. Any shortage of spark energy may cause high HC emissions. If the spark occurs at the wrong time, incomplete combustion and high hydrocarbons may result.
Can a dirty air filter cause high CO emissions?
1. Dirty Air Filter – The number one overlooked emissions component, yes, “emissions” component is the engine air filter. We recommend replacing the air filter at the manufacturer’s required intervals; usually every 15,000 miles, or at least before your vehicle’s smog check.
