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OP-MR Open-Path Gas Sensor

Brand: ABB Group

The OP-MR high resolution atmospheric transmission spectrum provides a finely resolved definition of the chemical species absorption fingerprint and thus a precise measurement of the chemical species concentration. The wide spectral range coverage of FTIR (1.5 to13.5 µm) allows the measurement of a large range of chemical species simultaneously. The instrument can provide a full atmospheric transmission spectrum within a fraction of a second.
Features
  • The ABB open path spectrometer is configured from the MR Series product line
  • Field rugged setup as a mobile system
  • High linear response of photovoltaic MCT detector
  • For improved chemometric model prediction and precise gas concentration measurements
  • Real time display of gases concentration
  • Open path length up to 500 m
  • Limit of CO2 detection < 10 ppb

Specifications

Brand

Spectral Range

  • 740 to 6,660 cm−1 (1.5 to 13.5 µm)

Resolution

  • 1, 2, 4, 8, 16, and 32 cm−1 at all wavelengths

Stability

  • Better than 0.01 cm−1

Scan Speed

  • 5 cm/s, fixed

Sensitivity

  • SNR 1000 to 1 peak-to-peak

Field of View

  • 5 mrad (10” Cassegrain telescope)

Detector

  • 77 K cooled photovoltaic MCT detector (Liquid Nitrogen or Optional: Stirling cooler)
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