Teledyne ML9830 Carbon Monoxide Analyzer

The Teledyne ML^® 9830 Carbon Monoxide Analyzer is a non-dispersive infrared (NDIR) photometer which uses gas filter correlation technology to measure low concentrations of CO accurately and reliably. 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 CO which removes all IR energy in the CO absorption wavelengths thereby creating a reference beam. The other cell contains nitrogen which allows the CO absorption spectral bands to be measured with the sample gas. Both IR beams pass sequentially 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 CO present in the measurement cell. This ratiometric technique eliminates most of the sources of drift typical of other less sophisticated analyzers.

Features:

• for maximum specificity and sensitivity, uses a long life (IR) source and advanced materials in the gas filter wheel for minimum maintenance.

• Built-in Zero Air Scrubber - Ensures zero stability with need for an outside scrubbing medium.

• Software Based Multi-Point Linearization - Provides linear response over the full scale range.

• Variable Sample Flow Rate - Enables the analyzer to purge the sample cell quickly during calibration and thus, maximize sample measurement time.

• U.S. EPA Reference Method Designation RFCA-0992-088

• Eignungsgepr Üft-Bericht Nr. 3.5.1/554/92 RW TÜV, Essen, Germany

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Teledyne ML^®9820 Ambient Carbon Dioxide Analyzer

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.

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.