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Definition
- Process of changing the hot, wet, dirty exhaust gas into a cool, dry, clean gas sample without loosing constituent concentration.
Prime
consideration in the design of an instrument to deliver accurate measurements
lElectrochemical sensors require cool, dry gas delivered at proper flow and pressure.
lProper sample conditioning means longer life sensors, high accuracy, and repeatability.
lThe big deal:
–Handle
reactive gases - NO2 & SO2
–Dry
Basis sample for reporting
Sample
Conditioning