STELZNER® agricultural measurement systems

Application solutions for exhaust gas, process gas, the chemical industry, testing facilities, laboratories and analysis systems for ATEX applications (Ex zone 1 or 2)

SSM 6000 Phyto

Phyto monitoring

Measurements of ethylene and carbon dioxide in plants and crops


The SSM 6000 Phyto stationary analysis system is used for continual measurements of ethylene and carbon dioxide in plants and crops.
Using gas exchange measurements on plant parts (such as on leaves or fruits), it is possible to determine information on plant growth and biological activity. Conditions for plant growth can be optimized and resource usage can be minimized by measuring the concentrations of ethylene and carbon dioxide.

The limit values for plant stress conditions can be determined using these measured variables. This information can then be used in conjunction with an automation system to provide process control within the greenhouse.

Example of usage:
Fully automatic continuous monitoring of plant physiological data in tomato greenhouses: for improving the yield or discovering energy saving potential. Integration of the data obtained into the greenhouse control mechanism.

Measured data collected:
– CO2 gas changes (photosynthesis, respiration)
– Leaf temperature
– Photosynthetically active radiation (PAR)
– Global radiation
– Leaf transpiration

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Measurement range:  
C2H4 10 ppm

2,000 ppm

Measurement technique:  
C2H4 electro-chemical sensor

NDIR measurement

C2H4 1 ppb

0.1 ppm

Repeat accuracy:  
C2H4 2% of measured value

2% of measured value

Detection limit (2o ~):  
C2H4 2 ppb

2 ppm

Long-term stability:  
C2H4 excellent long-term stability

excellent long-term stability with proCAL

Display: 4-character LED display, status screens,
    4-character LCD display
Communication port: RS232, 4 to 20 mA
Operating temperature: + 5 to +40 °C
Power supply: AC 85-264 VAC, 47-63 Hz
Protection degree: IP40
Dimensions and weight:: 450 x 135 x 300 mm,
    approx. 10 kg
Options: Profibus DP, several measuring points, etc.
Special features: Data storage

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