Gas Filter Cell series

For best optical measurement of gases

Hermetic gas filter cells are gas-filled cylinders and are used to block out specific frequency bands of interfering gases in optical gas analysis.

Additionally, the cells can be filled with reference gases of certain gas concentrations to be used for calibration of gas analysis systems, e.g. adjusting laser wavelengths to specific gas absorption bands. For a very high long-term stability our gas filter cells are hermetically sealed. The high transmissivity is achieved by soldered CaF₂ windows.

Key features

Elimination of cross-sensitivities to interfering gases in optical gas analysis.

Adjustment of measuring instruments and gas analyzers.

Soldered, high-quality CaF₂ window. Leakage tested!

Filling tube enables self-filling with desired gas and sealing.

Broad range of applications from UV to far infrared spectral range.

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