CIRAS-3Redefining high-end research - 'portability'

More portable

A portable measurement system that can simultaneously measure photosynthesis and chlorophyll fluorescence. The size and weight are more suitable for field measurement work. Including the host (including battery) and leaf chamber, which weigh only about 5kg, its advantage lies in:

• Reduce on-site interference

• Easy to reach areas that are difficult to reach

No need for tripod or other accessories to assist

• Reduce work fatigue intensity

• New research usage experience

More powerful, customizable, and intuitive

System "foolproof" operation, highly customized. Through simple training, one can quickly get started with conducting research and measurements. The built-in help function of the system can guide "zero experience" users to quickly get started. Use default or custom settings to monitor and display digital and graphical data.

More stable environmental controllability

CIRAS-3 provides fully automatic and independent CO measurement for response curves (such as fast A/Ci response curve, light response curve, etc.)₂、 H₂O、 Temperature and light source control. All controllable environmental parameters can be pre programmed or dynamically set. CIRAS-3 has excellent temperature control stability, including a wide temperature control range and a variety of temperature control types.

Realize simultaneous measurement of photosynthesis and chlorophyll fluorescence

Our CFM-3 chlorophyll fluorescence module is integrated into the light source. It can be used as both a fluorescence analyzer (PAM) and a regular light source. Diversified functions are more time and cost-effective. “Multi-Pulse ™” Multiple pulse technology enables us to better determine Fm '.

Fast A/Ci response curve

Through our innovative and programmable fast CO₂The slope technique can generate a fast A/Ci response curve in a very short period of time.

• Black dot: Non steady state high-speed A/CI rapid response curve

• Red dot: Traditional point-to-point steady-state A/CI measurement method, with each point stable for about 2 minutes

• Typical C3 plant soybean (above): light intensity PAR 1500 μ mol m-2 s-1; Flow rate of 300 ml/min; The reference CO2 concentration increases from 50 ppm to 500 ppm within 7 minutes; The traditional method takes about 22 minutes;

• Typical C4 plant Salvia officinalis (below): light intensity PAR1500 μ mol m-2 s-1; Flow rate of 300 ml/min; The reference CO2 concentration increases from 100 ppm to 1000 ppm within 10 minutes; The traditional method takes about 22 minutes;

Fast&Accurate

CIRAS-3 has four independent gas analyzers to monitor CO₂And H₂O， For differential analysis systems. Its integration and miniaturization of the entire system enable faster and more accurate differential balancing and gas exchange measurements.

Plug and play accessories can achieve various auxiliary functions

CIRAS-3 can be used in conjunction with a range of leaf chamber systems with different configurations to simultaneously measure leaf gas exchange and chlorophyll fluorescence. It can also serve as an independent standard CO₂And H₂O gas analyzer. Alternatively, soil CO can be achieved by connecting to standard or DIY assimilation chambers₂Determination of flux and population assimilation rate.

Automatic controlIntensity andwavelength

Our PLC3 LED light source has four colors of red green blue white, allowing users to control the light intensity up to 2500 μ mol m^-2s^-1And adjust the wavelengths of light in different proportions.

Automatic calibration technology

With over 35 years of experience in gas detection and our automatic zeroing measurement strategy, the system calibration remains stable. The system can quickly warm up, adapt to constantly changing environmental conditions, and maintain stability.

Eliminate obstacles and gain more possibilities

Smaller size, better performance

CIRAS-3 was initially designed with a focus on high-end research fields. Without the need for tripods or other auxiliary equipment, the compact size of CIRAS-3 makes it a portable photosynthetic/fluorescence measurement system in high-end research fields. Faster detection speed improves user time and sample utilization efficiency. After personally experiencing the size and weight of the CIRAS-3 host and blade chamber, you will soon discover why being smaller and lighter is better!

Faster response, ultra portable

The IRGAs (infrared gas analyzers) of CIRAS-3 are located inside the host, adjacent to the gas mixing system and flow rate controller: this design enables CIRAS-3 to respond quickly to "reference" gases. IRGAs are located inside the host, making the entire system highly mobile and portable, without fear of damage to the infrared chamber caused by common dirt, dust, and debris around the blade chamber.

Built-in Lithium Battery

The host is equipped with a built-in lithium battery, which can support the operation of CIRAS-3 system for more than 12 hours in good condition. Battery life, as an important consideration factor in field research operations, has such excellent performance with a long battery life of about 12 hours and no need to replace the battery pack during use.

Fast A/Ci Response Curve - Fast CO2 Gradient Technology

For many years, researchers have been exploring the photosynthetic status of plants using steady-state A/Ci response curve technology. Exciting is PP System's "High Speed CO₂Ramping Technique "Fast CO₂Gradient technology can achieve A/Ci response curves comparable to conventional methods in a relatively short period of time. CIRAS-3 can generate A/Ci response curve within 5 minutes! The actual measurement generation time mainly depends on the settings used by the researcher and the parameters they are concerned about.

Why measure the fast A/Ci response curve?

Compared to measuring individual net photosynthetic A and intercellular CO₂By measuring the rapid A/Ci response curve of concentration Ci, two to three plant photosynthetic characteristic parameters can be calculated, including:

1. Maximum carboxylation efficiency in vivo (V)_cmax）

2. In vivo to high electron transfer efficiency (J)_max）

3. Usage rate of glucose phosphate (V)_tpu）

Whether the third parameter Vtpu can be determined depends on the metabolic characteristics of plant leaves. By combining the three high temperature dependent parameters and pore conductivity mentioned above, the Farquhar model can be used to predict light, temperature CO₂Photosynthesis of leaves under any combination of humidity and environmental conditions.

By using conventional slow and steady-state methods to measure the net photosynthetic rate A corresponding to Ci within a certain range, the above two to three parameters can also be obtained, but this process is more time-consuming, usually at least 30 minutes or even up to an hour. Compared with this new method, each blade can complete the fast A/Ci response curve in only 5 minutes.

How to quickly determine the A/Ci response curve for CIRAS-3?

CIRAS-3 is a high-precision CO2 and H2O differential gas analyzer. It can easily achieve fast and accurate formation of linear gradient CO2 concentration in the leaf chamber, thus completing the A/Ci rapid response curve within minutes. Our storage differential balancing technology can easily and quickly record data and export it directly to Excel format. The built-in response curve editing software in the system enables users to easily and quickly generate and edit linear response programs to meet the special needs of different studies.

CO₂/H₂O gas analyzer

Gas analyzer is the core and soul of any photosynthetic measurement system. Regarding CO₂And H₂Accurate, reliable, and stable measurement and control are important guarantees for high-end academic research. CIRAS-3, as a true "differential analyzer", has four independent, non dispersive gas analyzers for simultaneous measurement and control of CO₂And H₂O. This has obvious advantages compared to the "gas switching" measurement system, which is also an urgent demand and research need for most researchers. In order to enhance reliability, no moving parts such as chopper motors or filter wheels are installed inside the system. The gas analyzer optimizes the integration of infrared light source, highly polished gold-plated sample chamber, and detector for CO₂And H₂Perform testing. The analyzer is only responsible for independently measuring infrared absorption, while the optical platform ensures temperature control and pressure compensation to ensure the detection of CO in constantly changing natural environments₂And H₂Accurate measurement of O.

measuring range

CO₂: 0-10000 μmol mol^-1

H₂O: 0-Dew point

calibration

Over 35 years of rich experience in gas analysis technology have ensured the inherent calibration stability of CIRAS-3 from the beginning of its design. CIRAS-3 "Auto Zero" automatic zeroing technology enables rapid preheating of equipment systems, adapts to constantly changing environmental conditions, and has excellent stability. In short, automatic calibration can be performed without the time-consuming and expensive process of returning to the factory for recalibration, ensuring that the equipment system remains in a precise, reliable, and stable state for a long time. The auto zero function can reduce the impact of sample span (gas sensitivity), sample source aging, detector sensitivity, and changes in preamplifier gain. The periodic automatic zero calibration function is simple and clear, and it is recommended to regularly confirm the integrity and calibration accuracy of the system.

Comprehensive environmental control: automation, programmability, standardization

CO₂/H₂O gas analyzer

environmental control

CIRAS-3 is the measurement of response curves (such as A/Ci response curve, light intensity response curve, etc.), which can comprehensively, independently, and automatically control CO in a short period of time₂、 H₂O、 Temperature and light intensity. During the automatic response curve measurement process, all environmental parameters can be dynamically adjusted or pre programmed. The power required for environmental control is supplied entirely by the built-in rechargeable lithium battery pack (without the need for an external power supply).

CO₂control

The CIRAS-3 photosynthesis measurement system comes standard with automatic CO₂Control system. Our standard gas mixer uses mini CO₂The steel cylinder (8g) can provide precise, stable, continuous, and constant CO₂Airflow. Each CO2 cylinder can be used continuously for about 12 hours. The replacement of steel cylinders is very easy to operate and does not require CO during long-term use₂Maintain and calibrate the mixer or regulating valve.

CO₂Control range:0-2000μmol mol^-1

H₂Ocontrol

According to user settings, the moisture is controlled through the automatic desiccant installed in the control tube.

H₂OControl range:0-dew point

It can also be conveniently measured under conditions higher than ambient humidity.

temperature control

All leaf chambers can achieve fully automatic, precise, and stable temperature control. The Peltier component (thermoelectric cooler), heat sink, and cooling fan installed at the head of the blade chamber can accurately control the temperature over a large range. Users can freely set the temperature without control, the same ambient temperature, or precisely control it at a set temperature.

Temperature control range：Below environment~10 ℃ to above environment 15 ℃

Extreme temperature control range：0～45℃

light sourcecontrolManufacturing (detachable)Fully automatic control of light intensity and different wavelength light quality ratios

All leaf chambers can be equipped with detachable fully automatic control LED light source modules. The light source module provides red, blue, green, and white (RGBW) four-color LED beads, which can simultaneously control the light intensity and the proportion of different wavelengths of light.

Light source control range: 0-2500 μ mol m^-2s^-1

PLC3 type blade chamber

No need for any accessories or tripods! The compact size and fast response characteristics further enhance the performance of CIRAS-3. CIRAS-3 offers three standard leaf chambers to choose from (universal, narrow leaf, and coniferous), achieving true plug and play functionality. Each leaf chamber can be directly combined with CIRAS-3. Cleverly recombining different blade chamber heads and sensors can be achieved without spending a lot of time.

The leaf chamber gasket ensures the airtightness of the leaf chamber without causing damage to the plant sample. All blade chamber models come standard with a fully automatic temperature control system.

Equipped with LCDdisplay

All PLC3 series blade chambers are equipped with LCD displays, which can display 8 user-defined parameters. During the measurement process, data can also be conveniently recorded through the blade chamber.

Equipped with three types of leaf chamber windows as standard

7mm x 25mm narrow window, 18mm diameter circular window, and 18mm x 25mm wide leaf window, easy to switch.

PLC3 universal blade chamber

Suitable for flat and wide leaves

PLC3 universal blade chamber is currently a popular blade chamber. The PLC3 universal leaf chamber design is suitable for most flat and wide plant leaves. Three different blade chamber windows are provided, and users can choose according to different blade sizes.

Two optical quantum sensors are installed inside the leaf chamber to measure the average PAR light intensity, and one external optical quantum sensor is used to measure the ambient light intensity. An infrared (IR) radiation sensor is equipped inside the blade chamber for precise, non-contact measurement of blade temperature. The blade temperature can also be calculated using the energy balance method.

PLC3 Coniferous Leaf Chamber

Suitable for measuring grasses, cereals, and short leaved plants. The semi cylindrical shape of the leaf chamber window is more suitable for measuring 3D structured plants.

Window Material: Glass Window Area: 80 mm (length) x 40 mm (diameter)

Equipped with a built-in photon probe to measure internal PAR intensity and an external photon probe to measure ambient PAR intensity. The blade temperature can be calculated using the energy balance method or detected using a precision thermistor with contact. The detachable head component can quickly and easily convert the leaf chamber from a "needle shaped" to a "narrow leaf shaped".

PLC3 narrow blade chamber

Suitable for measuring grasses, cereals, and coniferous plants.

Window Material: Infrared Filter

Window area: 80 mm (length) x 30 mm (width)

Equipped with a built-in photon probe to measure internal PAR intensity and an external photon probe to measure ambient PAR intensity. The blade temperature can be calculated using the energy balance method or detected using a precision thermistor with contact. The detachable head component can quickly and easily convert the blade chamber from a "narrow blade" to a "needle like" shape.

Simultaneously measuring photosynthesis&chlorophyll fluorescence

CFM-3 chlorophyll fluorescence module

The CFM-3 chlorophyll fluorescence module can achieve separate measurement of chlorophyll fluorescence or simultaneous measurement of photosynthesis and chlorophyll fluorescence.

The compact and exquisite industrial design of CFM-3 integrates all light sources and fluorescence detection components into an integrated light source module. The CFM-3 fluorescence module can be used as a regular light source to measure gas exchange in leaves, or as a pulse modulated (PAM) fluorescence probe to measure chlorophyll fluorescence parameters in plants under dark adaptation and light conditions.

CFM-3 can generate saturated pulsed light up to 10000 μ mol m-2 s-1 and is suitable for a wide range of different natural light environments. CIRAS-3 Multi PulseTM technology can effectively detect Fm 'with sequence gradient saturation intensity.

The CFM-3 chlorophyll fluorescence module is an optional accessory and is only suitable for PLC3 universal leaf chambers.

Powerful and intuitive user-friendly software

The CIRAS-3 host is equipped with a full-color 7.0 "semi transparent display screen that can display clearly in various environments such as direct sunlight. The ergonomically designed 30o screen tilt angle makes reading more convenient, simple, and suitable for single person measurement operations. 27 tactile buttons can meet all users' input information needs.

data shows

The types of data displayed on the LCD screen can be customized according to user preferences. Most screen display data can be customized by users.

Data collection and transmission

With just a few button operations, you can choose from three data recording methods: manual, automatic, or automatic response curve. Data can be stored in internal memory or directly on a USB drive. The data storage method is flexible and can be easily transferred to your personal PC for further data analysis and processing.

Measurement and calculation of photosynthetic parameters

CO2 reference, CO2 analysis, CO2 difference, H2O reference, H2O analysis, H2O difference, air temperature, leaf temperature, leaf chamber temperature, internal PAR intensity, external PAR intensity, relative humidity, atmospheric pressure, airflow velocity, intercellular CO2 concentration (Ci), stomatal conductance (gs), net photosynthetic rate (A), transpiration rate (E), vapor pressure deficit (VPD), and water use efficiency (WUE).

programming

The self programming of simple or complex experimental programs is very simple. Users can use popular XML programs to customize response curve settings. Once successfully established, it can be downloaded to CIRAS-3 and even shared with other CIRAS-3 users.

Personal PC loading software&remote operation display

It is very easy to implement self programming for simple or complex experimental programs through a personal PC. Users can use popular XML programs to customize response curve settings. Once successfully established, it can be downloaded to the CIRAS-3 host and even shared with other CIRAS-3 users.