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SC-1 Porometer to measure the stomatal conductance - Leaf Porometer
Reference:
SC-1
Accurate and reliable measurements of stomatal conductance
Quick measurements with the SC-1 porometer
Stomatal conductance is one of the most difficult parameters to measure of the soil-plant-atmosphere continuum.
The SC-1 Porometer provides accurate stomatal conductance measurements quickly and easily.
The SC-1 Porometer measurements are based on steady state theory and a continuous process of research, improvement and development carried out by the METER Group team for the past 15 years.
Stomatal conductance is measured after placing a sheet in series with two known conductance elements (humidity sensors).
By measuring the difference in humidity of these humidity sensors, the flow of water vapor is known.
Leaf conductance values are calculated from these variables, since humidity is known at three points: on the leaf and on the two humidity sensors.
Stomatal conductance measurements are obtained in thirty seconds.
It is necessary to calibrate the equipment in the field and whenever the environmental conditions during the sampling change.
Calibration takes a few minutes. The Porómetro SC-1 is a portable device that works with batteries and that incorporates a simple user menu.
The equipment is light, has memory for more than 4000 data and allows download via cable (USB cable and management program included).
Readings can be recorded as conductance or resistance.
| Precisión | 10% de la medida |
| Intervalo de medida de Conductancia | 0 a 1000 mmol m2 s-1 |
| Condiciones ambientales para su funcionamiento | 5 a 40°C, 0 a 100% RH, con cámara de desecante |
| Alimentación | Cuatro pilas "AA" |
| Duración de la baterla | 3 años (consumo de batería en modo de reposo <50 µA) |
| Unidades de medida | µmol m2 s-1, m2/s mol--1, s/m |
| Memoria | 4095 medidas. Memoria flash |
| Interface de comunicación | Cable USB |
| Diámetro de la cámara de medida | 6,35 mm |
| Longitud del cable del cabezal del sensor | 1,2 m |
| Desecante | DrieRlte, tamaño partícula 10-20 mm |
| Tiempo de medida | 30 s (en modo automático) |
SC-1 Porometer Applications to Measure Stomatal Conductance
- Water use and water balance.
- Measurement of water stress.
- Basic research in plant physiology.
- Herbicide assimilation.
- Assimilation of ozone and other polluting agents.
- Trials and comparative studies.
- Stomatal behavior.
- Type of Instrument
- Leaf Porometer
- The instrument measures:
- Stomatal Conductance
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