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Non-Dispersive Infrared Gas Analyzers (NDIR)

NDIR analyzers allow for high sensitivity measurement of a variety of gas components including CO2, CO, CH4, NO, and SO2. Additionally an O2 measurement can be made with a built-in paramagnetic analyzer or external zirconia analyzer.

  • The model IR202 is capable of measuring concentration of CO2, CO, CH4, SO2, and NO components in process gas by using the non-dispersive infrared method (NDIR), while measuring O2 with the paramagnetic or zirconia method. It also provides high stability over long periods of time.
    A maximum of 4 components including O2 (or up to 3 components without O2 measurement) are simultaneously measurable.

  • The model IR400 measures the concentration of NO, SO2, CO2, CO and CH4 contained in sample gas. Since this instrument incorporates a compact paramagnetic O2 sensor, it allows measureing up to 5 componets simultaneously by using the built-in O2 sensor (up to 4 components if O2 sensor is excluded).

  • The model IR200 is measures the concentrations CO2, CO, CH4, SO2 and O2 contained in sample gas. CO2, CO, CH4 and SO2 are measured by non-dispersion infrared method (NDIR), while O2 is measured by paramagnetic method. A maximum of 4 components including O2 (max. of 3 components for other than O2 measurement) are simultaneously measurable.

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