Ultra portable modulated chlorophyll fluorescence analyzer

In 1983, Professor Ulrich Schreiber, a scientist from WALZ company and a professor at the University of Uzburg in Germany, designed and manufactured a modulated fluorescence analyzer - PAM-101/102/103, which has been widely used in fields such as plant physiology, ecology, agronomy, forestry, and aquatic biology, and published a large number of high-level research literature. But the instrument is relatively bulky and not easy to bring to the field.
In 1992, Professor Ulrich Schreiber designed and manufactured the PAM-2000 portable modulated fluorescence analyzer (now upgraded to PAM-2100). Due to its ability to be used both indoors and outdoors, it became the most popular modulated fluorescence analyzer in the following decade.
In 1996, WALZ designed and manufactured a more portable modulation fluorescence analyzer, MINI-PAM, based on the concentrated PAM-2000 function. This instrument has condensed the functions of PAM-2000, making it more suitable for field operations and also cheaper in price.
In 2014, 18 years later, MINI-PAM was upgraded to a brand new version MINI-PAM-II! MINI-PAM-II has blue (470 nm) measurement light, actinic light, saturation pulse, and far red light (735 nm). MINI-PAM-II uses a touch screen operation, and its semi transparent LED display screen has good visual effects under natural light. In addition, MINI-PAM-II can be connected to a Windows system computer through a USB interface and operated using WinControl-3 software. All saturation pulse analysis can be completed by touch screen or software operation, including automatic execution programs such as induction curves and light response curves. MINI-PAM-II comes standard with 6 AA batteries (No. 5 battery), which can perform up to 1000 saturation pulse analyses without an external power source; The backup battery pack enables the instrument to conduct research in remote areas. Leaf clip accessories can measure PAR (photosynthetically active radiation intensity), leaf temperature, relative humidity, and calculate the electron transfer rate driven by natural radiation. The parameters automatically calculated by MINI-PAM-II include Fv/Fm, Y (II), qL, qP, qN, NPQ, Y (NPQ), Y (NO), ETR, and so on.
The PAM series modulated chlorophyll fluorescence meter has become the industry standard for measuring photosynthesis and is currently the most widely published photosynthetic measurement technology. Professor Schreiber was also awarded the * Photosynthesis Association Innovation Award (2007) for his contributions.
Main functions
Measurable fluorescence induction curve and quenching analysis
Capable of measuring light response curve and rapid light curve (RLC)
All use LED light source, with a brand new touch screen design
New humidity measurement function and addition of far red light source
The instrument is more portable and suitable for field measurements
Can be used in combination with a light fiber and a photosynthesis analyzer (such as GFS-3000)
Powered by a No. 5 battery, the backup battery is easily available and suitable for outdoor use
Application field
Study the mechanism of photosynthesis, the impact of various environmental factors (light, temperature, nutrition, etc.) on plant physiology and ecology, plant stress resistance (drought, cold, heat, UV, viruses, pollution, etc.), and the ecological changes of plants.
It has a wide range of applications in fields such as plant physiology, plant ecology, plant pathology, agriculture, forestry, horticulture, aquatic biology, and environmental science.
measurement parameters
Fo, Fm, F, Fm', Fo’, Fv/Fm, Y(II)=ΔF/Fm', qP, qL, qN, NPQ, Y(NPQ), Y(NO), rETR, PAR、 Leaf temperature and relative humidity, etc.

Main technical parameters
Measurement light: Blue LED (470 nm), light intensity of 0.05 µ mol m-2 s-1
Photochemical light: Blue LED (470 nm) with maximum continuous light intensity of 3000 μ mol m-2 s-1.
Saturation pulse: Blue LED (470 nm), maximum flash intensity of 6000 μ mol m-2 s-1.
Far red light: emission peak at 735 nm.
Signal detection: PIN photodiode with long pass filter and selective lock-in amplifier.
Data storage: 8MB memory card, capable of storing 27000 sets of data.
Blade clamp: 2035-B blade clamp includes MINI-PAM/F fiber placement port and sample clamp. The upper and lower parts of the blade clamp can be opened to clamp the blades. The upper part of the clamp provides a circular measuring area with a diameter of 1 centimeter. The standard distance between the fiber optic cable and the measurement area is 8 mm. The fiber optic cable forms a 60 ° angle with the measurement plane. The blade temperature sensor is installed below the measurement area. The humidity sensor is installed at a distance of 3cm from the measurement area. The built-in chip stores the calibration data of the sensor. The saturation pulse can be released by remotely triggering a button. Additionally, provide an additional optical sensor input interface. PAR measurement range 0-7000 µ mol m-2 s-1, leaf temperature measurement range -20 to+60 ℃, humidity measurement range 0-100% RH.
Power supply: 6 AA (No. 5 1.2 V/2 Ah) rechargeable batteries, which can provide 1000 saturation pulse flashes on one charge.
Origin: WALZ, Germany