PAM chlorophyll fluorometer enclosed in a metal tube, which can be connected to the Standard Measuring Head 3010-S. Measurement via an optical fiber, entering the leaf chamber of the Standard Measuring Head 3010-S through an air-tight connection
Measuring light
Blue LED (peak: 450 nm), modulation frequency: 10 and 500 Hz. PAR at 2 mm distance and ML-Ampl. 10: Ca. 0.3 μmol m-2 s-1 with low frequency, 15 μmol m-2 s-1 with high frequency
Saturating light
Blue LED (peak: 450 nm). At 1 mm distance: Typ. 11000 μmol m-2 s-1. At 2 mm: Typ. 6000 μmol m-2 s-1
Far-red light
LED (peak: 730 nm)
Signal detection
PIN-photodiode protected by a long pass filter (transmission=50% typ. at 645 nm), selective window amplifier