The cuvette is illuminated by a bank of quartz halogen bulbs and is water cooled. Analysis Method Non-dispersive infrared, configured as an absolute absorptiometer, with microprocessor control of linearization. Both analysis and reference pumps are fitted with mass flow controllers. The analyser may be used in both open and closed systems Environmental Sensor Inputs 3 input channels are available. Data Storage 32K internal battery backed RAM, stores up to 820 records.
Memory is maintained during battery change.
Cuvettes with Automatic Temperature Control Standard features include the measurement of leaf temperature by infra-red thermometry and automatic temperature control. The upper and lower parts of the cuvette have separate air connections and stirring fans, making it possible to measure the individual gas exchanges of the two leaf surfaces. Taking advantage of recent advances in CAD design and CNC machining, the internal air passages are optimized for heat exchange and contoured to minimize boundary layer resistance. Please refer to the cuvettes page for details on the Narrow, Conifer and Pod Automatic Cuvettes. By use of optical fibers, PAR is measured inside the cuvette and very close to the leaf surface.