Instructions for using the photosynthesis analyzer

■Instrument Introduction:

SY-1020HPhotosynthesis analyzerIt is achieved by measuring CO in plant leaves over a certain period of time₂The amount absorbed (released) is measured, and factors such as air temperature and humidity, leaf temperature, leaf chamber humidity changes, and light intensity are simultaneously measured to directly calculate the plant's photosynthetic rate, transpiration rate, and intercellular CO₂Photosynthetic indicators such as concentration and stomatal conductance.Photosynthesis analyzerIt has outstanding advantages such as high sensitivity, rapid response, strong anti-interference ability, easy operation, and the ability to perform live and continuous measurements. Therefore, it has been widely applied in many fields such as plant physiology, ecological environment, and agricultural science.

■Key Features:

Small and lightweight in appearance, easy to carry around, capable of measuring anytime, anywhere, and operated by a single person.

Color dot matrix LCD display screen, Chinese menu displays multiple information, cursor guides operation.

● You can set the modification date, time, leaf area, volume, measurement interval time, flow rate, username, etc.

The measurement process and final results are displayed in real-time and can be stored.

The measurement data is stored in TXT document format, with a standard 2G SD card and the largest storage capacity of 32GB.

The measurement results include: photosynthetic rate, respiration rate, transpiration rate, stomatal conductance, intercellular carbon dioxide concentration, and water use efficiency, and can display the current test results in real time.

● CanoptionalVarious types of leaf chambers (reactors) are suitable for measuring different objects such as plant leaves, seeds, insects, etc.

Adopting dual humidity sensing modules and placing them at the head of the measuring handle can quickly respond to changes in humidity inside the leaf chamber, avoiding air path delays. Make the testing and calculation of transpiration rate and stomatal conductance more accurate and rapid.

Adopting two measurement modes, open circuit measurement and closed circuit measurement, users can flexibly choose different measurement modes according to different usage environments.

Using a micro electronic flowmeter, the flow rate of the air pump can be adjusted within the range of 200-999umol/s as needed to measure the impact of different gas flow rates on photosynthesis, ensuring stable gas flow. At the same time, it has an air path blockage alarm prompt function to avoid testing errors and pump damage caused by air path blockage.

● Increase atmospheric pressure index and have pressure compensation function.

■Technical Indicators:

●CO₂Analysis:Dual wavelength infrared carbon dioxide analyzer with temperature regulation added (carbon dioxide measurement is not affected by temperature changes, has stability, high accuracy, and sensitive response)

Measurement range: 0-3100ppm, resolution: 0.01ppm, accuracy: ± 3ppm@400ppm
●Leaf temperature:Japanese forestry worker Pt1000 sensor

Measurement range: -20-80 ℃, resolution: 0.01 ℃, error: ± 0.2 ℃
●Air temperature:Swiss imported Gao precision digital temperature sensor
Measurement range: -20-60 ℃, resolution: 0.01 ℃, error: ± 0.2 ℃
●Leaf chamber humidity:Swiss imported Gao precision digital humidity sensor
Resolution: 0.01%, Error: ± 1.5%

●Air humidity:Swiss imported Gao precision digital humidity sensor
Resolution: 0.01%, Error: ± 1.5%
●Photosynthetically active radiation (PAR):Silicon photovoltaic cell with correction filter, response wavelength range: 400-700nm
Measurement range: 0-3000 µ mol · m ^-2·s^-1Resolution: 1 µ mol · m ^-2·s^-1Error: ± 5% reading (refer to li-190R calibration)
●Flow measurement:Micro electronic flowmeter, flow rate can be set arbitrarily between 200-999umol/s

Measurement range: 0-1000umol/s, resolution: 0.1umol/s, error: ± 2%

●Leaf chamber size:Standard size 55 × 20mm

●Operating environment:Temperature: 0 ℃ -40 ℃, relative humidity: 0-85% (no condensation of water vapor)
●Power Supply:Large capacity DC8.4V rechargeable lithium battery, capable of continuous operation for 12 hours on a single charge
●Data storage:Standard 2G memory card, expandable to 32GB or 64GB
●Data transmission:Randomly equipped with a card reader, data can be imported into any computer without moving the instrument to the computer
●Display:3.5-inch TFT true color LCD display with a resolution of 800 × 480, clearly visible under strong light
●buttonMulti button operation, no need for combination operation, simple and convenient operation of various functions
●volume260 × 260 × 120 or 225 × 210 × 105 (two sizes are randomly shipped)
●Weight:Host 3.0kg

■Measurement method:

Open circuit measurement, closed circuit measurement

■Measurement indicators:

CO₂Concentration, air humidity, air temperature, leaf chamber humidity, leaf temperature, photosynthetically active radiation (PAR), atmospheric pressure, airflow velocity
■Analysis and Calculation:

Photosynthetic rate, respiratory rate, transpiration rate, intercellular CO₂Concentration, stomatal conductance, water use efficiency

■Standard configuration:

One host, one measuring handle (leaf chamber window 55mm × 20mm), one data cable, one 2G SD card, one card reader, one charger, one 3-meter air pipe, and one instrument box

■Optional attachments:
●Leaf chamber size:Type I: (20 × 20mm)Type II: (55 × 20mm) standard configurationType III: (55 × 10mm), Type IV: Round with a diameter of 11.3mm
●Assimilation box:Capacity 2L. Other sizes can be customized
●Light source:External plug-in LED red and blue light source, adjustable range 0-2000 µ mol · m^-2·s^-1

●GPSlocation:Equipped with GPS positioning function, it can display the latitude and longitude of the measurement location in real time
●Soil respiration chamber:Diameter 94mm, Gao degree 160mm, volume 1 liter

Various accessories related to photosynthesis or respiration can also be customized