General Features

PAM-2500 Chlorophyll Fluorometers

The PAM-2500 chlorophyll fluorometers are extremely compact and powerful measuring systems. The fiber versions contain all optical and electronic components in a 23 cm x 10.5 cm x 10.5 cm housing. The measuring light is generated by a light emitting diode (LED) in the form of 1 μs pulses at frequencies ranging from 10 Hz to 200 kHz.

The RED version, PAM-2500, employs measuring light of 630 nm. The BLUE version, PAM-2500/B, uses 455 nm measuring light. The RED version provides 455 nm blue, 630 nm red and 750 nm far-red actinic light sources but the 630 nm actinic source is absent in the BLUE version.

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For leaf measurements with the BLUE and RED version, the optional leaf-clip 2030-B is available. In the leaf clip, light is measured using a tiny diffuser (approx. 1 mm), which records the relevant photosynthetically active quantum flux density PAR, μmol m-2 s-1.

For measurements with suspensions (isolated chloroplasts, algae or cyanobacteria), the fiberoptics versions can be used in combination with a special cuvette equipped with magnetic stirrer and temperature control.