CIRAS-2: The most portable, fully integrated photosynthesis system for high level
research
|
 |
CIRAS-2 Portable
Photosynthesis System
Trusted and tested technology
One highly portable
photosynthesis system with many measurement capabilities
including.....
-
Leaf gas exchange
-
Soil respiration
-
Chlorophyll Fluorescence
-
Canopy net CO2
flux
A "True Differential Analyzer"
ensuring the highest degree of accuracy and control of CO2
and H2O for high
level research.
Want to know why more and more
researchers are choosing the CIRAS-2,
click here.
Data Sheet -
CIRAS-2 Portable Photosynthesis System |
One system that can do it
all....
Leaf Gas Exchange
A wide range of
leaf cuvettes and
accessories
for leaf gas exchange. |
Fluorescence
Powerful, integral module for
simultaneous measurement of leaf gas exchange and
chlorophyll fluorescence. Adaption kits are
also available for use with commercially available
fluorometers. |
Net Canopy CO2 Flux
Large range of "Closed" and "Open"
chambers for measurement of net canopy CO2
flux. |
Soil Respiration
Popular "Closed" and "Open" systems for
accurate measurement of
soil respiration. |
CIRAS-2 Main Console
Portability
The CIRAS-2 main
console is lightweight, compact and extremely rugged for
demanding field research. It is powered by two
lightweight, rechargeable 12V NiMH battery packs capable of
running the entire system up to 6-8 hours (including LED light
unit). Batteries can be easily changed in the field
without the need to shut down the system.
Measurement Ranges
CO2: 0-2,000 µmol mol-1
(optimal)
CO2: 0-9,999 µmol mol-1
(Maximum)
H2O: 0-75 mb
For measurements at elevated CO2
concentrations, the CIRAS-2 is factory calibrated up to
9,999 µmol mol-1 as standard.
True Differential
Analyzer
The CIRAS-2 is a true
differential system. It features 4 independent,
non-dispersive gas analyzers for accurate, simultaneous
measurement of both
CO2
and H2O,
eliminating the problems associated with "gas switching"
systems. Also, for enhanced reliability, there are no
moving parts such as chopper motors or filter wheels. The
analyzers (reference and analysis) include an infrared source,
highly polished, gold plated sample cells and detectors.
The analyzers act as absorptiometers measuring infrared
absorption only (4.26 µm for CO2
and 2.60 µm for H2O).
The CIRAS-2 optical bench is temperature controlled and pressure
compensated for the most accurate CO2
and H2O
measurements under changing ambient conditions.
Calibration
The
design of the CIRAS-2 ensures an inherent calibration stability
that has been confirmed by over 25 years experience in gas
analysis technology. The CO2
analyzers do not require recalibration but we do
recommend periodic checks to confirm system integrity.
The CIRAS-2 features an "Auto-Zero"
facility which ensures long term stability and accuracy
of the analyzers. It automatically corrects for sample
cell contamination, dirty optics and drift in
electronics. There is an integral CO2
verification facility and external H2O
calibrator for automated calibration of the H2O
gas analyzers.
The
CIRAS-2 system is capable of providing independent, automatic
control of CO2
and H2O to
the leaf cuvette (reference) and within the leaf cuvette
(analysis). Control of CO2
and H2O can
be dynamic or pre-programmed for automatic response curve
generation.
CO2
Control
A
built-in, removable CO2
regulator and gas cylinder holder allows for the use of
pure mini CO2
cartridges (8g). Each cartridge is capable of
providing automatic control of CO2
between 0-2000 µmol mol-1
for at least 1 full day.
H2O Control
On-board,
self-indicating desiccants are used for conditioning the
H2O concentrations
per user selected levels from 0-Dewpoint.
The CIRAS-2 is an ideal
system for automatic generation and measurement of A/Ci curves
like the ones to the left on soybean cv. Stressland.
