LI-6400XTPortable photosynthesis measurement systemIt represents the high level of leaf level photosynthesis measurement instruments internationally today. LI-6400XT can control CO around the blades₂Concentration H₂Related environmental factors such as concentration, temperature, relative humidity, light intensity, and leaf chamber temperature. Configure 6400-40 fluorescent leaf chamber, the system can simultaneously measure indicators such as gas exchange, fluorescence parameters, and respiration parameters of the leaves.

LI-6400XTSolved many problems in field measurement of photosynthesis

The gas concentration can be controlled within an appropriate range to measure the response curve
Solved the problem of leaf temperature increasing with increasing light exposure time; Simultaneously measure the surface illumination intensity of the blade
The light source is portable and can accurately control the light intensity without relying on external weather conditions
Real time on-site viewing of experimental data, the system is easy to operate and user-friendly.
The system is sturdy and durable, capable of adapting to various environmental conditions; Accurate and stable experimental data

Important features

light source

LED red/Blue light source（6400-02B） The LED red/blue light source can range from 0 to 2000 µ mol • m-2•s-1Continuous variation between blades, with almost no heat generation and no disturbance to the blades, without the need for additional batteries

RGB red green blue light source（6400-18A） It can be combined with various transparent large leaf chambers (clustered leaf chamber, Arabidopsis leaf chamber, moss leaf chamber, narrow leaf chamber, self-made leaf chamber, etc.) for light control experiments,To determine the light response of the entire small plant (rosette shaped leaf clusters and clustered short branches)/CO2Response curve measurement provides a powerful tool. Optional red, green, blue, white, or any proportional combination of various colored lights Continuous variable light intensity can generate automatic light curves, fully integrated with LI-6400/6400XT Cold light source and uniform light emission: The unique design of LED ensures that light is evenly distributed on the surface of the blade, and low heat production reduces the impact of the light source on the blade

Various leaf chambers

Standard leaf chamber	6400-08 Transparent bottom leaf chamber	6400-11 Narrow leaf chamber	6400-40 Fluorescent leaf chamber	6400-05 Clustered leaf chamber
6400-07 Needle shaped leaf chamber	6400-22L Controllable light clustered leaf chamber	6400-15 Duckbill leaf chamber	6400-17 Whole Arabidopsis leaf chamber	6400-24 Moss Leaf Chamber
6400-037 Thick blade chamber gasket	6400-19 Homemade Leaf Chamber	6400-09 Soil CO2respiration chamber	6400-89 Insect respiration measurement device

Technical Parameter
CO₂analyzer
Type:Absolute open circuit non dispersive infrared analyzer
Range:0~3100 µmol/mol
bandwidth： 10 Hz
signal noise：
At 350 µ mol/mol: RMS 0.07 µ mol/ mol@1 S signal; RMS 0.04 µmol/ mol@4 S signal
accuracyMaximum error: ± 5 µ mol/mol @ 0~1500 µ mol/mol; ±10 µmol/mol @ 1500~3100 µmol/mol

H₂O analyzer
typeAbsolute open circuit non dispersive infrared analyzer
range： 0~75 mmol/mol, or dew point at 40 ℃
bandwidth： 10 Hz
signal noise： At 20 mmol/mol: RMS 0.009 mmol/ mol@1 S signal; RMS 0.007 mmol/ mol@4 S signal;
accuracyMaximum error: ± 1.0 mmol/mol @ 0-75 mmol/mol



Order guide

Optional selection

Leaf chamber

Accessories and consumables

Origin and Manufacturer: LI-COR Corporation, USA