Multiphase Flash Fluorometer
The Multiphase Flash Fluorometer (6800-01A) is a combined light source and chamber for simultaneous measurements of gas exchange and chlorophyll a fluorescence from the same leaf area. Choose a 6-cm2 or 2-cm2 leaf area by swapping interchangeable apertures.
The light source includes a Pulse Amplitude Modulated (PAM) fluorometer, which provides a highly uniform light field over the leaf surface. Capable of saturation flash intensities up to 16,000 µmol m-2 s-1, the fluorometer measures dark-adapted (Fo, Fm, Fv/Fm) and light-adapted (Fs, Fm’, Fo’, ETR) parameters, as well as induction kinetics (OJIP). Supports the Multiphase Flash Fluorescence protocol to accurately extrapolate Fm’ in leaves that are difficult to light saturate.
Large Light Source
The Large Light Source (6800-03) provides irradiance with any combination of red, green, blue, and white light (up to 2400, 1000, 2000, and 1500 µmol m-2 s-1 respectively). It features a precision reflector to provide highly uniform lighting of the leaf surface. An integrated silicon photodiode measures PAR above the leaf to provide real-time measurements of irradiance in the chamber. The Large Light Source is compatible with the Large Leaf and Needle Chamber, the Small Plant Chamber, and the Bryophyte Chamber.
Small Light Source
The Small Light Source (6800-02) mounts directly onto the Clear-top Chamber. It provides 0 to 2,500 µmol m-2 s-1 total PAR, with individually controlled red and blue light. Featuring advanced reflector design and careful LED placement, the light source provides uniform illumination of the leaf surface. An integrated silicon photodiode measures PAR output from the LEDs, providing real-time feedback to control chamber illumination.