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SILAREX – Optical NDIR multi-gas sensors

Precision and high performance: With the SILAREX platform, smartGAS offers standardized multi-channel solutions

Applications such as emission measurement require the simultaneous analysis of multiple gases like CO2, NO and SO2. SILAREX gas sensors have been developed for this application case and enable parallel concentration measurement of up to three measuring gases with one single NDIR gas sensor. The cross-sensitivities of the individual gases are compensated directly inside the SILAREX sensor, providing the user with fully prepared and corrected measuring values via Modbus ASCII / RTU for further processing. Compared to measuring with three individual sensors, the advantages are obvious: Only one sensor needs to be calibrated and maintained; varying sample preparation, different accuracies or life cycles of the sensors do not need to be considered.

  • Measure up to three gases simultaneously with one setup
  • cross-sensitivity is calculated on-board
  • Pressure compensation on board
  • Ready to use calibrated
  • NDIR technology for complex measurement tasks

Convenience and safety through combined measurement

smartGAS offers SILAREX multi-channel sensors as well as the required accessories for design-in and operation in different versions as a standard, e.g. for emission monitoring with carbon dioxide up to 20 % by volume, nitrogen monoxide up to 2,000 ppm and sulfur dioxide up to 1,000 ppm. It is also possible to implement two-channel versions for measuring carbon dioxide and carbon monoxide with focus on industrial production plants, cogeneration plants and cement production. The SILAREX concept forms the perfect basis for challenging measuring gas combinations and customized sensor developments.

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