Walz MINI-PAM - 13 Appendix; Technical Specifications

CHAPTER 13 APPENDIX
13 Appendix
13.1 Technical specifications
Photosynthesis Yield Analyzer MINI-PAM
Measuring light source: Light emitting diode, emission maximum at
650 nm; 12 intensity settings, standard
intensity 0.15 µmol m
-2
s
-1
PAR;
modulation frequency 0.6 or 20 kHz; Auto
20 kHz function; burst-mode, 1/5
integrated intensity
Halogen lamp: 8 V/20 W blue enriched, filtered to give
λ<710 nm; 12 intensity settings, max. 6000
µmol m
-2
s
-1
PAR with continuous actinic
illumination, max. 18000 µmol m
-2
s
-1
PAR
during saturation pulses
Signal detection: PIN-photodiode protected by long-pass
filter (λ>710 nm); selective window
amplifier (patented); sampling rate, 150
µs/point
Microcontroller: CMOS 80C52
Memory: Program memory, CMOS EPROM 32 kB;
Data buffer, CMOS RAM 128 kB,
providing memory for up to 4000 data sets
Measured and
calculated parameters: Fo, Fm, Fm', F, Fv/Fm (max. yield),
∆F/Fm' (yield), qP, qN, NPQ, PAR and °C
(using Leaf-Clip Holder 2030-B), ETR (i.e.
PAR x ∆F/Fm')
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