Portable Plant Photosynthesis Meter for Photosynthetically Active Radiation
GH30 plant photosynthesis meter can measur CO2 concentration of gas, air temperature and humidity, plant leaf temperature, photosynthetic active radiation, CO2 concentration of intercellular, gas flow and other paremeter, and calculate the four photosynthesis indexes of plant photosynthesis (respiration) rate, transpiration rate, stomatal conductance and water utilization rate. It can also be used as a carbon dioxide recorder.
- Description
Description
GH30 plant photosynthetic meter built in operating system and touch screen, which can display, save and export CO2 photosynthetic curve, temperature photosynthetic curve, light photosynthetic curve and carbon dioxide change curve. It is widely used in scientific research of Agronomy, forestry, ecology, agrometeorology and other application.
Measurement items:
Photosynthetic active radiation (PAR) μ mol m-2 s-1
Non diffusive infrared CO2 analysis ppm or μ mol mol-1
Blade temperature ℃
Leaf chamber humidity% or MB
Atmospheric pressure mbar
Blade chamber temperature ℃
Analysis and calculation:
transpiration rate
Net photosynthetic rate
Stomatal conductance
Water use efficiency
Intercellular CO2 concentration
Display curve:
CO2 photosynthetic curve, temperature photosynthetic curve, light photosynthetic curve and CO2 change curve.
Measurement mode:
Humidity rise mode
Barometric mode
Carbon dioxide decline mode
CO2 analysis:
Non diffusive infrared CO2 analysis, measurement range: 0-10000ppm or μ Mol-1, resolution: 0.1ppm or μ mol mol-1; The accuracy measurement range of 0-3000ppm is 1ppm or μ mol mol-1
Blade temperature:
Platinum resistance, measuring range: – 20-60 ℃, resolution: 0.1 ℃, error ± 0.2 ℃
Blade chamber temperature:
High precision digital temperature sensor, measurement range: – 20-80 ℃, resolution: 0.1 ℃, error ± 0.2 ℃
Humidity:
High precision digital humidity sensor:
Measurement range: 0-100%, resolution: 0.1%, error ≤ 1%
Photosynthetic active radiation (PAR):
Silicon photocell with correction filter;
Measuring range: 0-3000 μ Mol m-2 s-1, accuracy < 1 μ mol m-2 s-1. Response wavelength range: 400 ~ 700nm;
Flow measurement: micro electronic flowmeter, the flow can be freely set in the range of 0-1L. Resolution: 0.0001L.
Zero drift: ± 0.005l. The air pump flow can be set according to needs. The influence on photosynthesis under different gas flow can be measured.
Data storage: 16g memory, expandable to 32g.
Data transmission: USB flash disk and USB connected computer.
Software: special data analysis software. The carbon dioxide difference and humidity are displayed and saved in real time. Multiple groups of data after the test can be analyzed at the same time to generate curves with different colors, which is convenient for the comparison of experimental data.
Display: 5 ” LCD, color touch display, resolution 800 × 480, clearly visible.
Volume: 255×255×110mm;
Weight: 3.8kg;
Blade chamber size:
Type I: (20 × 20mm)
Type II: (55× 20mm) standard size
Type III: (55 × 10mm)
Type IV: 11.3mm diameter circle
GPS positioning: GPS positioning that display the longitude and latitude of the measurement location in real time
Light source: external plug-in LED red and blue light source, adjustable range 0-3000 µ molm ㎡ / s, and the light intensity value can be set . Red, white and blue light sources optional, red light 660nm, blue light 455nm and high luminous efficiency white light.
Population assimilation tank: Volume 2L.
Soil respirator: 100mm diameter and 200mm height.
Operating environment: temperature – 20 ℃ – 60 ℃, relative humidity: 0-100% (no water vapor condensation)
Power supply: large capacity rechargeable lithium battery, last for 12 hours.
Feature:
Convenience: small size, light weight, portable, simple operation;
Multifunctional: simultaneously measure photosynthetic rate, transpiration rate, intercellular carbon dioxide concentration, stomatal conductance and water use efficiency, and carbon dioxide concentration, relative humidity, photosynthetic effective radiation, air temperature, leaf temperature, atmospheric pressure and other indicators;
High stability: the dual wavelength infrared carbon dioxide analyzer comes with temperature regulation and atmospheric pressure measurement unit, which effectively improves the stability and accuracy of carbon dioxide. It can reduce excessive fluctuation of carbon dioxide value caused by temperature change;
Data analysis: Multiple groups of data after the test can be analyzed at the same time to generate curves with different colors, which is convenient for the comparison of experimental data;
Smart: Built in operating system and touch screen. Multi information menu display and text guided operation, and store the measurement process and final results on the screen in real time. It can also display CO2 photosynthetic curve, temperature photosynthetic curve and light photosynthetic curve;