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Carbon Dioxide Analyzer
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Ambient Carbon Dioxide Analyzer ML 9820
Features: Gas correlation infrared measurement of Carbon Dioxide Differential or absolute measurements from user supplied zero air Three full scale ranges available to maximize data linearity CO2 is not a criteria pollutant and thus does not require an EPA equivalency designation.
Downloads
- Spec Sheet download
Product Description
The Teledyne ML 9820 is a gas filter correlation non-dispersive infrared based instrument designed to measure ambient concentrations of carbon dioxide. This instrument utilizes a broadband infrared radiation source located behind a rotating gas filter correlation wheel. The correlation wheel has two gas filled "cells," one contains the CO2 which removes all IR energy in the CO2 wavelengths thereby creating a reference beam. The other cell contains nitrogen which allows the CO2 in the sample to be measured. The IR beam passes through the multiple path measurement cell where the energy is absorbed by the sample gas. The difference in IR energy sensed by the solid state detector during measurement and reference cycles is proportional to the CO2 present in the measurement cell. The ratiometric technique eliminates most of the sources of drift typical of other less sophisticated analyzers.