Gas-Exchange Chamber

The Gas-Exchange Chamber 3010-GWK1 is designed to investigate medium-sized samples like small branches, big leaves, or fruits under well-defined climate controlled conditions. To provide this, the 3010-GWK1 chamber has a highly efficient temperature control, a transversal fan for fast ventilation, and pneumatic connectors for air-supply.

Internally there are sensors to accurately monitor temperature at three sites, air humidity, and PAR (photosynthetically active radiation). Externally the chamber has additional sensors for temperature and PAR.

The LED-Panel RGBW-L084 provides illumination for the Gas-Exchange Chamber 3010-GWK1. It has a densely packed array of high-power color-LEDs for uniform light distribution. Individual adjustable colors Red, Green, Blue and White exhibit together a maximum output of 2000 μmol s-1 m-2 or better.

For CO2 gas-exchange measurements, the chamber can be operated as part of the the GFS-3000 in replacement of the Standard Measuring Head 3010-S. Otherwise the chamber can be operated directly by a computer using an optional interface. On request, the top part of the chamber will be manufactured to match the requirements for particular samples.

Please consider using Gas-Exchange Chamber 3010-GWK1 in combination with the GFS-3000, that the maximum flow of the GFS-3000 is 1.9 l/min. Leaf samples producing too much humidity can limit the systems capabilities.

The 3010-GWK1 also facilitates the option of studying spatially resolved chlorophyll fluorescence under defined conditions, because its sample area matches the imaging area of the IMAGING-PAM M-Series MAXI version.

General Features 3010-GWK1


The 3010-GWK1 chamber is equipped with four temperature sensors: Three Pt100-type sensors measuring temperature of inside air, near the cooling elements and externally. The fourth temperature sensor is a thermocouple for leaf temperature measurements.

Temperature Control Modes

Temperature control can be switched between three modes: Constant temperature of chamber air, constant leaf temperature, or temperature variation parallel to ambient temperature with an adjustable offset. Temperature profiles can be realized with user-programs. Due to the highly efficient Peltier technology, the cuvette temperature can be regulated fast and accurately.

Gas-Exchange Chamber 3010-GWK1, top view showing sample area and sensors


The 3010-GWK1 chamber has two sensors for photosynthetic active radiation (PAR): A cosine corrected sensor (MQS/B-GWK1) measures ambient PAR at sample level outside the chamber, and a special miniaturized sensor measuring PAR inside the chamber.


A maintenance-free sensor measuring the relative humidity with an accuracy ±1.5% r.h. is located inside the gas-exchange chamber.


The gas-exchange chamber features a transversal fan for effective ventilation. Its speed is adjustable in 5 steps.


The 3010-GKWK1 chamber can be controlled by the GFS-3000 or by a laptop using an optional interface. In both configurations, the 3010-GKWK1 chamber requires its own power supply.