Chamber
Accessory
designed on customer request
Chambers can be designed on customer request, for example a fruit chamber as shown.
Design
Chamber consisting of an aluminum cooling block with two pneumatic connectors and transversal fan, flat polymer lid or user-designed cuvette; micro-processor controlled electronics with connectors for temperature sensors, humidity sensor, PAR-sensors, GFS-3000 or 3010-I/Box connection, power-input; cooled with Peltier-cooling units and ventilator
Measurement of chamber and ambient temperatures
Pt 100 type A, range -10 to 50 °C, accuracy ±0.1 °C. An extended version with a range from -10 to 75°C is available
Leaf temp. measurement
Thermocouple, range: -10 to 50 °C, accuracy ±0.2 °C, range of extended version: -10 to 75°C
Temperature control
Three modes of temperature control: Constant cuvette temperature, constant leaf temperature, follow ambient temperature with an offset
Temperature control range
-10°C to 50°C depending on ambient temperature and radiative heat intake.
With 4l volume, dark: 10 K below ambient temperature and 25 K above ambient temperature.
With flat lid, dark: 20 K below ambient temperature and 35 K above ambient temperature.
Range of extended version: -10 to 75°C
With 4l volume, dark: 10 K below ambient temperature and 25 K above ambient temperature.
With flat lid, dark: 20 K below ambient temperature and 35 K above ambient temperature.
Range of extended version: -10 to 75°C
Relative humidity sensor
Range: 0 to 100% r.h., accuracy: ±1.5% (5 to 95% r.h.), T90 response time (11 to 75% r.h.): <10 s
External miniature quantum sensor
Mini Quantum Sensor MQS-B/GWK1 outside of chamber. Selective PAR measurement, range 0 to 2500 μmol m-2 s-1, accuracy ±5%, cosine corrected (measuring photosynthetic photon flux density PPFD)
Internal light sensor
Selective PAR measurement, range 0 to 2500 μmol m-2 s-1 PAR, accuracy ±10%, two sensors, one in the upper and one in the lower part of the cuvette
Cuvette ventilation system
Transversal fan
Maximum sample area
14 cm x 10 cm
Pneumatic connectors
Hose fittings for 10/8 mm (OD/ID) tubing
Inner volume of the cooling unit alone
840 ml (up to edge of aluminum frame)
Power supply
AC Power Supply 3020-N for laboratory operation
Power consumption
Max. 45 W
Operating temperature
-5 to 45 °C
Dimension of cooling unit
26 cm x 25 cm x 19.5 cm (L x W x H)
Weight
6.9 kg including cables and tubes
Cuvette Standard
Flat lid (inside: 16 cm x 14.5 cm, outside: 18.5 cm x 17 cm, volume: 320 ml); other design available on customer request
Optional glas lid
3010-GWK1/G, aluminium frame 18.4 cm x 17 cm x 2 cm with glass surface 0.4 cm and opening for petiolus
Optional interface
3010-I/Box for stand-alone operation of the GWK1
Usage
Laboratory