CO₂ FT – CARBON DIOXIDE SENSOR FOR FLOW-TROUGH APPLICATIONS

The CONTROS HydroC® CO₂ FT is a unique surface water carbon dioxide partial pressure sensor designed for underway (FerryBox) and lab applications. Fields of application include ocean acidification research, climate studies, air-sea gas exchange, limnology, fresh water control, aquaculture/fish farming, carbon capture and storage – monitoring, measurement and verification (CCS-MMV).

INDIVIDUAL ‚IN-SITU‘ CALIBRATION

All sensors are individually calibrated using a water tank which simulates the deployment temperature. A proven reference flow through system is used to verify the CO₂ partial pressures in the calibration tank. High quality standard gases are used to calibrate the reference system before and after every sensor calibration. This process ensures that the CONTROS HydroC® CO₂ sensors achieve excellent short and long term accuracy.

OPERATING PRINCIPLE

Water is pumped through the flow head of the CONTROS HydroC® CO₂ FT sensor. Dissolved gases diffuse through a cus¬tom made thin film composite membrane into the internal gas circuit leading to a detector chamber, where the partial pressure of CO₂ is determined by means of IR absorption spectrometry. Concentration dependent IR light intensities are converted into the output signal from calibration coefficients stored in firmware and data from additional sensors within the gas circuit.

HydroC® CO₂ FT data sheet

FEATURES

  • High accuracy
  • Fast response time
  • User-friendly
  • Long-term maintenance interval of 12 months
  • Long-term deployment capability
  • ‚Plug & Play‘ principle; all required cables, connectors and software are included
  • The CONTROS HydroC® technology has a track record in peer-reviewed scientific publications

OPTIONS

  • Range/Full-scale can be user-configured
  • Data logger

  REFERENCES

IMPACT OF CO2 CONCENTRATION ON FISH LARVAE
For detection of the CO₂ variability and identification of low, mid and high level CO₂ regions, the CONTROS HydroC CO₂ FT was used on a vessel at the west coast of Peru.

PROCEEDINGS OF THE ROYAL SOCIETY B, DOI
10.1098/RSPB.2017.0509

FIRST LONG-TERM HIGH-RESOLUTION DATASET COMBINING CO2 AND TOTAL ALKALINITY MEASUREMENTS
The German Wadden Sea has been found to produce significant amounts of total alkalinity during the spring and summer months. Continuous measurements of CO2 and TA contributed largely to the understanding of its impact for the carbonate chemistry in this region.

LIMNOLOGY AND OCEANOGRAPHY, DOI 10.1002/LNO.11103

INTERESTING STUDY ON CO2 DYNAMICS IN THE WESTERN ENGLISH CHANNEL BASED ON TWO YEARS OF FERRYBOX DEPLOYMENT
New insights into the dynamics of air–sea CO2 fluxes in the contrasted ecosystems of the Western English Channel using the CONTROS HydroC CO2 FT sensor on a VOS line.

JOURNAL OF MARINE SYSTEMS, DOI 10.1016/J.JMARSYS.2014.05.010