CIRAS-3 Redefining "portability" for high-level field research
The first truly mobile system for simultaneous measurement of photosynthesis and chlorophyll fluorescence. For field work, size and weight matter. At a weight of approximately 5 kg for both the console and cuvette, benefits include:
• Less site disturbance
• Easy access to hard-to-reach areas
• No need for a tripod or assistance
• Reduced fatigue
• An entirely new research experience
Powerful, Customizable & Intuitive
Our system is easy to use and highly intuitive. That means minimal training is needed, allowing you to begin collecting data shortly after your system arrives. Built-in system help dialogs are there to guide even the most inexperienced user every step of the way. Rely on the defaults or customize your own settings to monitor and display numerical and graphical data.
Environmental Control & Stability
The CIRAS-3 offers fully-automatic, complete and independent control of CO2, H2O temperature and light for response curves (i.e. fast A/Ci curves, light response, etc.) Control of all environmental parameters can be dynamic or preprogrammed. The CIRAS-3’s temperature stability and control is the most reliable in the industry. We also offer one of the widest temperature control ranges available with an extensive variety of different controlling options.
Measure Photosynthesis & Chlorophyll Fluorescence Simultaneously
Our CFM-3 Chlorophyll Fluorescence Module has a built-in light source. It can be used as both a fluorometer (PAM) and as an independent light source making it not only versatile but time and cost-efficient. Our unique “MultiPulse™ technology allows for the popular estimation of apparent Fm‘.
Rapid A/Ci Curves
Generate ultra-fast A/Ci curves in a fraction of the time using our innovative and programmable high-speed CO2 ramping technique.
Fast & Accurate
The CIRAS-3 is a true differential analyzer featuring four independent gas analyzers for CO2 and H2O. It’s compact size and small total system volume ensures the most rapid, accurate equilibration and leaf gas exchange measurement.
Plug & Play Accessories for Added Versatility
The CIRAS-3 can be used with a number of different leaf cuvettes for measurement of leaf gas exchange and chlorophyll fluorescence. It can also be used as a stand-alone CO2 and H2O differential gas analyzer. Measure insect respiration as well as soil CO2 efflux and net canopy flux using our chambers or yours.
Auto Control of Light Intensity & Wavelength
Our PLC3 LED Light Units feature red, green, blue and white lightenabling users to control both light intensity up to 2500 µmol m-2s-1and proportion of light by wavelength.
No Calibration Required
Our Auto-Zero measurement principle ensures an inherent calibration stability confirmed by more than 35 years of experience in gas technology. It allows for fast warm-up, adaptation to changing ambient conditions and unsurpassed stability for many years.
CIRAS 3 Features
- Small footprint and lightweight–truly mobile, the first of its kind
- Internal, rechargeable Li-ion batteries for up to 12 hours operation
- 4 independent, non-dispersive infrared gas analyzers (IRGAs) for both CO2 and H2O
- Automatic and programmable control of CO2, H2O, temperature, and light
- Large, full color, 7.0″ transflective LCD for field use and optimized viewing angle
- Unlimited data storage (internal memory and thumb drives)
- Flexible and versatile user interface
- Powerful software
- Range of accessories for chlorophyll fluorescence, soil respiration, canopy assimilation and insect respiration
CIRAS-3 PLC Leaf Cuvettes
Lightweight. Fast. Precise.
Our PLC3 leaf cuvettes work seamlessly with the CIRAS-3. The innovative design makes for fast and efficient measurements just about anywhere!
No need for assistance or a tripod! Their small size and fast response further enhance the CIRAS-3’s capabilities. The CIRAS-3 supports three standard leaf cuvettes (Universal, Narrow, and Conifer) which are truly plug and play. Each cuvette connects directly to the CIRAS-3. No time-consuming, delicate reassembly or adjustment of different heads and sensors.
The leaf cuvette gaskets provide an air-tight seal without causing any damage to vegetation. Automatic temperature control is standard with all leaf cuvettes.
Onboard LCD Display
All PLC3 series leaf cuvettes include an onboard LCD allowing the user to display up to 8 user-defined parameters. Measurements can also be recorded remotely from the leaf cuvette for convenience and ease.
PLC3 Universal Leaf Cuvette
For flat, broad leaves
Our PLC3 Universal Leaf Cuvette is our most popular leaf cuvette by far. The PLC3 Universal is designed for measurement on most flat, broad leaf plants. It features 3 different windows allowing you to customize the head to accommodate different sized leaves.
Window: IR Filter
Dimensions: See head plates below
Includes 2 miniature silicon photodiode sensors providing a reliable average of PAR inside the cuvette in addition to ambient PAR measured by an external sensor. It also includes an infrared (IR) radiation sensor for accurate, non-contact measurement of leaf temperature. Leaf temperature can also be determined by energy balance.
PLC3 Conifer Leaf Cuvette
For measurement on grasses, cereal crops and short needle conifers. The window is hemispherical making it suitable for 3D structures.
Window Area: 80 mm (L) x 40 mm (Diameter)
Includes 1 miniature silicon photodiode sensor providing measurement of PAR inside the cuvette in addition to ambient PAR measured by an external sensor. Leaf temperature is calculated based on energy balance or precision thermistor for contact measurement. An optional head plate can be supplied to easily convert from “conifer” to “narrow”.
PLC3 Narrow Leaf Cuvette
For measurement on grasses, cereal crops, and long needle conifers.
Window: IR Filter
Window Area: 80 mm (L) x 30 mm (W)
Includes 1 miniature silicon photodiode sensor providing measurement of PAR inside the cuvette in addition to ambient PAR measured by an external sensor. Leaf temperature is calculated based on energy balance or precision thermistor for contact measurement. An optional head plate can be supplied to easily convert from “narrow” to “conifer”.
The CFM-3 Chlorophyll Fluorescence Module
The CFM-3 Chlorophyll Fluorescence Module is capable of both independent measurement of chlorophyll fluorescence as well as simultaneous measurement of photosynthesis and chlorophyll fluorescence.
The CFM-3 is compact and elegantly designed with all light sources and fluorescence detection capability built directly into the light unit. The CFM-3 can be used as an actinic light source for leaf gas exchange and as a pulse-amplitude-modulated (PAM) fluorometer for measurement of chlorophyll fluorescence on both dark and light adapted vegetation.
The CFM-3 is capable of delivering saturating pulses up to 10000 µmol m-2 s-1 which is extremely useful in accommodating a wider range of ambient light conditions. The CIRAS-3’s MultiPulse™ technology produces a sequence of saturating light levels for estimation of apparent Fm‘.
The CFM-3 Chlorophyll Fluorescence Module is an optional accessory designed exclusively for use with the PLC3 Universal Leaf Cuvette.
Measured and Calculated Fluorescence Parameters
Fo, Fm, Fs, Fo’, Fm’, Fv/Fm, ϕPSII, J, Fv’/Fm’, qP, qNP, NPQ, qL, ϕNO, ϕNPQ-K, ϕfD and ϕNPQ-G