LI-6800F Portable Photosynthesis System Package

Major Functions / Key Features

The LI-6800 Portable Photosynthesis System is capable of measuring combined gas exchange and fluorescence from leaves and aquatic samples with following features:

Automatic water vapor control. LI-6800 humidify or dry the air stream independently of flow rate. The instrument rapidly adjusts to whatever humidity setting you specify and precisely controls water vapor over the course of a measurement. With more humidity control flexibility, you can make more precise vapor pressure difference (VPD) measurements.

The Dynamic Assimilation™ Technique. When recording CO2 response curves using steady-state measurements, each point may take 90 to 120 seconds, requiring up to 35 minutes to record sufficient data to estimate the maximum velocity of carboxylation (Vc,max) and maximum rate of electron transport (Jmax). The Dynamic Assimilation™ Technique (DAT), however, provides comparable data in a fraction of the time. The LI-6800 features high air flow rates, excellent mixing of sample air, and minimal tubing between the infrared gas analyzers and leaf chamber, which in turn, provide high-speed measurements and fast response times.