Features:
This Portable Plant photosynthesis tester is to observe and measure the photosynthesis and transpiration of a plant leaf on or off the stem
Open or closed way for measure of the rate of photosynthesis
To calculate the rate of photosynthesis (respiration) and transpiration, stomata conductance or internal CO2 concentration by appropriate formula
All stored data transmitted to a computer.
Easy to take for use indoors and outdoors.
Technical parameters:
1. CO2 sensor
Type: Non-diffusion infrared analyzer
Range: 0 – 2000 ppm
Resolution: 0.1 ppm
Noise: Average noise≤0.4 ppm, maximum noise<0.8 ppm at normal CO2 concentration
2.Quantum of light sensor(PAR)
Type: Silicon photosensitive cell with filter of quantum of light modification in effective photosynthesis
Range of measurement: 0 - 2500 μmol / m2 ·s
Range of spectrum: 400 – 700 nm
Resolution: 1μmol / m2 ·s
Error: ±5%
3. Leaf temperature sensor
Type: Thermocouple
Range of measurement: 0 – 50 ℃
Resolution: 0.1 ℃
Error: ±0.3 ℃
4. Air temperature sensor
Type: Thermo sensitive resistance
Range of measurement: 0 - 50 ℃
Resolution: 0.1 ℃
Error: ±0.3 ℃
5. Flow meter
Type: Miniaure electronic flow meter
Range: 0 – 1 L / min
Resolution: 0.01 L / min
Error: ±5%, (<±0.2% within 0.2 – 0.8 L / min )
6. Humidity sensor
Type: Humid sensitive capacity
Range: 0 - 100% RH
Resolution: 0.1%
Error: <±2%RH ( within 0 - 80%RH ),<4 % RH ( within 80 - 100%RH )
7.Instrument
Display: 240×128 lattice, interface in Chinese
Data store: 2GB SDcard
Power supply: 7.4V 10AH Rechargeable Li battery,
working time: 8– 10 hr with one recharge
Dimension: 32.0×13.5×29.6 cm
Weight: Instrument 4.0 Kg, Leaf chamber with handle 1.0 Kg
8. Leaf chamber ( One option only)
Type I (25×25 mm)
Type II (55×20 mm)
Type III (65×10 mm )
9. Accessories
Range of illumination: 0 - 2500 μmol / m2 ·s
Spectrum: 400 – 700 nm
Display: Liquid crystal display
Battery: DC 12V, 7 HA Rechargeable acidic Pb battery
Dimension: Instrument 178×127×8 mm,
illumination area 100×45×45 mm
Weight: 4.2 Kg