characteristics The instrument can be used to calculate the rate of photosynthesis and transpiration, stomata conductance, internal CO2 concentration of leaf.
Application
The instrument can be used to calculate the rate of photosynthesis (respiration) and transpiration, stomata conductance, internal CO2concentration of leaf, as well as obtain the efficiency of quantum of light or water efficiency etc..
Features:
l To observe and measure the photosynthesis and transpiration of a plant leaf on or off the stem
l Open or closed way for measure of the rate of photosynthesis
l To calculate the rate of photosynthesis (respiration) and transpiration, stomata conductance or internal CO2 concentration by appropriate formula
l All stored data transmitted to a computer.
l Easy to take for use indoors and outdoors
Specification
- 1. CO2 sensor
- Type: Non-diffusion infrared analyzer
- Range:0 – 1500 ppm
- Resolution: 0.1 ppm
- Noise: Average noise≤0.4 ppm, maximum noise<0.8 ppm at normal CO2 oncentration
- ii. 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%
- iii. Leaf temperature sensor
- Type: Thermocouple
- Range of measurement: 0 – 50 ℃
- Resolution: 0.1 ℃
- Error: ±0.3 ℃
2. Air temperature sensor
- Type: Thermo sensitive resistance
- Range of measurement: 0 - 50 ℃
- Resolution: 0.1 ℃
- Error: ±0.3 ℃
.. 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 )
3. 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 )
4. Instrument:
- Display: 240×128 lattice
- Data store: 64K
- Data transmission: RS232, RS232-USB
- Power supply: 7.4V 10AH Rechargeable Li battery,working time: 8– 10 hr with one recharge
5. Leaf chamber ( One option only)
- Type I (25×25 mm)
- Type II (55×20 mm)
- Type III ( 65×10 mm )
6.. 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 ( With a lamp)
- Dimension: 32.0×13.5×29.6 cm
- Weight: Instrument 4.0 Kg, Leaf chamber with handle 1.0 Kg
