HydroC™ CO2 FT flow through
is a robust and accurate flow-through sensor for the reliable online measurement of dissolved carbon dioxide in surface waters.
HydroC™ CO2 FT flow through
Although not the most powerful greenhouse gas, CO2 drives climate change due to the enormous volumes of this gas pumped into the atmosphere. Studies on the behaviour, distribution and interaction of CO2 in surface waters depend on accurate in-situ measurements.
CONTROS’ HydroC™ CO2 FT is a unique flow-through sensor for dissolved carbon dioxide in surface waters. Applications include air- sea gas exchange, ocean acidification, climate studies, as well as studies for fish farming and aquaculture.
HydroC™ CO2 FT Fast Facts
| Dimensions: | 325 x 240 x 126 mm (L x W x H) |
| Flow rate: | 2 to 15 l/min (Recommended 5 l/min) |
| Temperature range: | +3°C - +30°C |
| Measuring range: | 0… 3000 ppm (other ranges available) / Standard calibration is 200… 1000ppm / Units selectable: μatm, ppm, etc. |
| Equilibration time: | first signal after 5s, T63 < 2min |
| Resolution: | < 1 ppm |
| Accuracy: | ± 1% of upper range value (as the total sum of all errors) |
| Calibration: | Calibration unit is ppm / Partial pressure in μatm is derived (internal sensors for pressure, temperature and humidity) / Recalibration recommended every 12 months |
| Drift correction / Features: | Dual channel NDIR unit / Auto zeroing on programmed intervals or initiated manually with software / Included zeroing cartridge lasts for approx. 1 year |
| Connector: | Hirschmann-plug CA6LD / Others on request |
| Power supply/ Consumption: | Typ. 12 VDC (11 - 24 VDC) / warm- up phase 8- 30min (depending on water temp)/ Appr. 400mA (700mA during warm- up) |
| Data Interface: | RS-232C / Data format ASCII NMEA-0183 |
| Software: | CONTROS DETECT Software included (real time data visualization, setting of sensor parameters, download data from internal data logger) / Adaption to user-software |
| Optional: | Analogue Output: 0 – 5/10 V / Range / Full-scale can be user-configured / RS-485 / Data logger |
Function principle
Water is pumped through the membrane head of the flow-through sensor. Dissolved carbon dioxide diffuses quickly from the liquid through a patented thinfilm composite membrane into the internal gas circuit. Here the CO2 concentration is measured with high accuracy by non-dispersive infrared spectrometry (NDIR).
Advantages
- The advantages of the CONTROS HydroC™ sensor line is the stability in long term monitoring (12 months+)
- High realiability, very high accuracy and a long maintenance interval
- Track proven record in the oil & gas field as well as in the scientific research
- Unaffected performance from turbidity and zero interferences to other gaseous substances in the environment (lowers false alarm rate)
- Easy integration to the required system, integration pigtail is included
- Long-term stable signal, high realiability, very high accuracy and a long maintenance interval
- High realiability and reproducibility of the data