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CO2 and H2O

CIRAS-3 DC CO2/H2O Gas Analyzer (Differential)

The CIRAS-3 DC is a lightweight, robust instrument with a rugged aluminum and polyurethane enclosure making it an ideal instrument for both field and lab. It uses the same high performance, differential CO2 and H2O gas analyzer used in our popular CIRAS-3 Portable Photosynthesis System designed for high level leaf gas exchange research. Our innovative “Auto Zero” measurement principle ensures long term stability and accuracy of both CO2 and H2O which is a significant advantage over “gas switching” systems. The gas analyzers include an infrared source, highly polished and gold plated sample cells and specially selected detectors optimized for CO2 and H2O. The optical bench is temperature controlled and pressure compensated ensuring the most accurate CO2 and H2O measurements under changing ambient conditions. Applications Photosynthesis and respiration Plant physiology Soil CO2 efflux Whole canopy assimilation Homemade chambers Global change & atmospheric studies FACE studies Forest & agricultural meteorology Air-sea surface exchange (pCO2) Powerful Software Simple, intuitive and menu-driven software is designed into the system for system setup, operation, recording and data management. On-line help is available throughout the software to guide you every step of the way.

High precision instrument featuring 4 independent, non-dispersive infrared gas analyzer for both CO2 and H2O (True Differential Analyzer) CO2 measurement range: Up to 10000 umol mol-1 H2O measurement range: 0-75 mb Fast response and long term stability with built-in Auto Zero Fully compensated for changes in temperature, pressure and foreign gas broadening Large, full color 7R43; transflective LCD with optimized viewing angle (30 o) Large numeric and graphical presentation of data Unlimited data storage (internal memory and USB flash drive) Analog and digital (USB) output Built-in sampling pumps with mass flow controllers for reference and analysis Powerful, intuitive user interface and software On-line Help Remote display capability Internal 7.2V Li-Ion rechargeable battery (optional) for portability

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