Specifications for GFS-3000: Measuring Head, LED Light Sources, and Accessories

All specifications are subject to change without prior notice.

Standard Measuring Head 3010-S

Design: Universal measuring head featuring small-sized cuvette volume (40 ml), wide range temperature control and effective ventilation. Electronics box detachable for custom-built cuvettes, upper and lower cuvette halves pneumatically separated with one impeller each for upper and lower part, interchangeable adapter plates for different leaf areas, cuvette expandable to different volumes and shapes (small cylinder or cuboid) for measuring mosses, lichens or conifers. Sockets for cable connections with Control Unit 3200-C, LED Light Source 3041-L or one additional component (e.g. LEDArray/ PAM-Fluorometer 3056-FL)

Cuvette temp. (in each air exit of upper and lower cuvette half), ambient temp.: Pt 100 type A, range -10 to +50 °C, accuracy ±0.1 °C

Temperature control: Three modes of temperature control: Tracking ambient temperature (with or without offset), set value for cuvette temperature and set value for leaf temperature; cuvette temperature ranging from 10 degrees below ambient temperature (decreasing with light intensity) to +50 °C

Leaf temp. measurement: Thermocouple, range -10 to 50 °C, accuracy ±0.2 °C

External miniature quantum sensor: Mini Quantum Sensor MQS-B/GFS sits on top of the Standard Measuring Head 3010-S. Selective PAR measurement, range 0 to 3000 μmol m-2 s-1, accuracy ±5%, cosine corrected (measuring photosynthetic photon flux density PPFD)

Internal light sensor: Selective PAR measurement, range 0 to 3000 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: Two frequency controlled impellers, one in the upper and one in the lower part of the cuvette, speed adjustable

Leaf area: 8 cm2 standard, interchangeable adapter plates from 1 to 10 cm2, flexible shape

Cuvette volume: 40 ml

Operating temperature: -5 to 45 °C

Dimensions: 31 cm x 7 cm x 13 cm (L x W x H)

Weight: 1.6 kg (incl. cable and tubes 2 m long)

LED Light Source 3041-L

Design: LED array with 67 warm white LEDs

Light intensity: Range 0 to ca. 3000 μmol m-2 s-1 PAR max.

Homogeneity of light distribution: ±7 % over 90 % sample area

Leaf area: standard 8 cm2 up to 10 cm2

Power consumption: 5.3 W max., power supply via Standard Measuring Head 3010-S

Operating temperature: -5 to 45 °C

Dimensions: 7.5 cm x 4.5 cm x 5.5 cm (L x W x H)

Weight: 196 g

LED-Array/PAM-Fluorometer 3057-FL

Design: : Combined PAM chlorophyll fluorometer and LED light source comprising an LED array with red LEDs (for actinic illumination and saturation pulses), blue LEDs (for additional actinic illumination), far-red LEDs, additional red LEDs (for measuring light) and 6 photodiodes (for chlorophyll fluorescence detection)

Measuring light: Red LEDs (635 nm), modulation frequency 5 to 100 Hz

Actinic light: Blue LEDs (470 nm) and red LEDs (635 nm), range blue: 0 to 400 µmol m-2 s-1 PAR, range red: 0 to 3000 µmol m-2 s-1 PAR, mixable with variable proportions of red and blue up to a total PAR of 3000 µmol m-2 s-1 at 25°C

Saturation light: Red LEDs (635 nm), up to 12000 µmol m-2 s-1 PAR at 25°C

Far-red light: Far-red LEDs (peak: 740 nm)

Signal detection: PIN-photodiode protected by long-pass filter (> 700 nm), selective window amplifier

External PAR Sensor: 0 to 22000 µmol m-2 s-1

Internal PAR Sensor: independent determination of blue, red, and saturating light pulse intensity

Leaf area: 8 cm2

Power consumption: 48 W max. (during saturating light pulse), power supply via Standard Measuring Head 3010-S

Operating temperature: -5 to +50 °C

Dimensions: 7.5 cm x 6 cm x 8 cm (L x W x H)

Weight: 225 g

Lichens/Mosses Cuvette 3010-V32

Inner Volume: Diameter 3.2 cm, height: 4 cm

Lichens/Mosses Cuvette 3010-V40

Inner Volume: ca. 40 ml, 3 cm x 5 cm x 2.7 cm
(L x W x H)

Conifer Cuvette 3010-V80

Inner Volume: 3 cm x 5 cm x 5.3 cm (L x W x H)

Arabidopsis Chamber 3010-A

Design: Attachment to the Standard Measuring Head 3010-S for gas exchange measurements on above-ground plant matter of small pot plants. Consisting of an aluminum attachment, two pot holders and a support for the horizontal bedding of the Standard Measuring Head 3010-S

Pot holder size (outside): Height: 7.5 cm,
diameter: 10 cm

Above ground volume: Height: 2.5 cm,
diameter: 4 cm

Usable pot size: Height: Max. 5.8 cm,
diameter: 5.5 to 7 cm

Leaf Area Adapter

Measuring area:

  • 3010-4.5x2.22 Leaf Area Adapter 10 cm2 (4.5 x 2.22 cm)
  • 3010-0.5x2.5 Leaf Area Adapter 1.25 cm2 (0.5 x 2.5 cm)
  • 3010-1x4 Leaf Area Adapter 4 cm2 (1 x 4 cm)
  • 3010-2.19x1.14 Leaf Area Adapter 2.5 cm2 (2.19 x 1.14 cm)
  • 3010-2.19x1.14C Leaf Area Adapter 2.5 cm2 located at the corner (2.19 x 1.14 cm)
  • 3010-2.19x1.14L Leaf Area Adapter 2.5 cm2 lengthwise (2.19 x 1.14 cm)
  • 3010-2.58x1.93 Leaf Area Adapter 5 cm2 (2.58 x 1.93 cm)
  • 3010-2x4 Leaf Area Adapter 8 cm2 (2 x 4 cm)
  • 3010-R3 round Leaf Area Adapter 3 cm2 (Ø 1,95 cm)

Compact Tripod ST-1010

Design: Stable tripod for mounting the Standard Measuring Head 3010-S, the tripod fits into the GFS-3000 transport box