GFS-3000

Version:

Product

Portable gas exchange fluorescence system

GFS-3000

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
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
Design
Aluminum housing featuring an integrated PC module, large graphical color-display well readable in sunlight with touch screen, 4-channel CO2/H2O gas analyzer, flow control, CO2 control (supplied via small cartridges or cylinders) and H2O control (for drying and humidifying). Pneumatic connectors for air inlet and measuring head. Sockets for cable connections: Cuvette: Standard Measuring Head 3010-S, DUAL-PAM Gas-Exchange Cuvette 3010-DUAL, or Gas-Exchange Chamber 3010-GWK1; Aux in: two Auxiliaries; 3 Battery Slots: Li-Ion eSMART Batteries (each 14.4V/6.8Ah), Mains Power Supply Unit 3200-N, or 3200/BC adapter for 12 V or 24 V Battery; Comp (RS 485): additional component or 3010/I-Box for external PC control; 2 USB sockets (USB 2.0) to internal PC: USB storage device or other USB device; Battery DC/in: two LiFePO4 Batteries 3035-A, AC Power Supply Unit 3020-N, or external DC (12-24 V)
CO2/H2O Gas Analyzer
Design
4-channel CO2/H2O absolute NDIR gas analyzer, separate cuvettes for CO2 and H2O
CO2 measurement
Simultaneous absolute and differential measurements, absolute range: 0 to 5000 ppm, cuvette length 20 cm, cuvette volume of one cell 6 cm3, gas-filled detector
H2O measurement
Simultaneous absolute and differential measurements, absolute range: 0 to 75000 ppm, cuvette length 20 cm, cuvette volume of one cell 6 cm3, pyroelectric detector (solid state)
Max. noise in absolute mode
<0.2 ppm CO2 and <30 ppm H2O
Resolution
0.01 ppm CO2, 1 ppm H2O
Linearization

Max. error between 0 and 600 ppm: 12 ppm, between 600 and 3000 ppm: 2% of measured value
Typ. less than 0.5 ppm
Max. error between 0 and 15000 ppm: 330 ppm, above 15000 ppm: 2% of measured value
Typ. less than 150 ppm
Correction
Signal is corrected for temperature, pressure and H2O-effect on CO2 signal
Barometric air pressure measurement
Range 60 to 110 kPa, accuracy ±0.1%
Other Specifications of the Control Unit 3200-C
Pneumatic time delay
Delay between Analyzer and Standard Measuring Head 3010-S is 2.5 s at standard flow rate
Mass flow measurement
: Thermal mass flow meter, range 0 to 1500 μmol s-1, accuracy ±1%
Integrated user interface
Panel PC MS-98FG/1.83 GHz with graphical color-display 640 x 480 dots (effective display area 13 cm x 10 cm) with backlight (well readable in direct sunlight), touch screen and 2 USB 2.0 sockets, and audio speaker
Data storage capacity
Solid State Drive 32 GB
CO2 control
Integrated CO2-control range 0 to 2000 ppm, CO2 supply via CO2 cartridges (8 g CO2, provide more than 48 h continuous supply at 350 ppm, reserve is indicated) or via CO2 cylinder with pressure reducer
H2O control
Integrated H2O control via step motor for humidifying and drying, range 0 to nearly 100% r.h. (non-condensing)
Measured and calculated parameters
CO2 absolute, CO2 difference, H2O absolute, H2O difference, flow, ambient pressure, 2x auxiliaries, cuvette temperature (upper and lower half), leaf temperature, ambient temperature, PAR in upper part of the cuvette, PAR in lower part of the cuvette, external PAR, impeller frequency, evaporation, VPD, H2O conductance, net photosyn[-]thesis, intercellular CO2 concentration. In combination with LED-Array/PAM Fluorometer 3057‑FL (GFS-3000FL): F0, FM, FM', F, F0', FV/FM (max. PS II quantum yield), DF/FM' = Y(II) (effective PS II quantum yield), Y(NPQ), qP, qL, qN, NPQ, ETR.
Recalculation of stored data with other parameters is possible.
PC interface
3010/I-Box
Auxiliaries
: Two analog inputs, range 0 to 4095 mV, user programmable
Power supply
Two field replaceable rechargeable Li-ion Batteries 14.4 V/6.8 Ah (000160101434, four batteries supplied), or AC Power Supply 3200‑N for laboratory operation. The Control Unit 3200-C may also be operated with a 12 or 24 V battery (only with optional battery cable 3200-C/BC provided by us).
Operating time
3 to 4.5 typ. with two Li-ion eSMART batteries, 6 to 9 hours typ. with four Li-ion eSMART batteries.
Operating temperature
-5 to 45 °C
Dimensions
43 cm x 29.5 cm x 26 cm (L x W x H)
Weight
12.3 kg (incl. two Li-ion eSMART batteries)
Design
DC power supply unit for laboratory use
Output Voltage
16 V DC
Output power
135 W (depends on version, see label)
Mains power supply
100 to 240 V AC, 50/60 Hz
Operating temperature
0 to 60°C (depends on version, see label)
Dimensions
20 cm x 8 cm x 5.5 cm (L x W x H) with connector inserting into the battery slot 15.3 cm x 7.9 cm x 2.3 cm (L x W x H), cable length 90 cm.
Weight
1.07 kg
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
Socket for External Mini Quantum Sensor MQS-B\GFS
0 to 22000 µmol m-2 s-1
Measured and calculated parameters
F, FM, FM’, F0, F0’, FV/FM (max. PS II quantum yield), Y(II) (effective PS II quantum yield), ETR, Y(NPQ), NPQ, qN, qP, qL.
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
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)
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
Inner Volume
Diameter 3.2 cm, height: 4 cm
Inner Volume

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

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

Adapter IMAG‐MAX/GWK1 for IMAGING-PAM (MAXI-Version) on Gas Exchange Chamber (3010-GWK1)

Design

Adapter Plate with legs and eye protection for positioning IMAG-MAXI Head on 3010-GWK1

Dimensions
18.5 cm x 20 cm 17 cm (L x W x H)
Weight
856 g
Design

2 Aluminum boxes with individual foam lining for GFS-3000 and accessories

Dimensions

60 cm x 40 cm x 35 cm (L x W x H)

Weight

5 kg (each)

Design

2 Aluminum boxes with individual foam lining for GFS-3000 and accessories

Dimensions

60 cm x 40 cm x 35 cm (L x W x H)

Weight

5 kg (each)

Accessories

Design
Cuvette is a sandwich of two 2 x 2 cm aluminum frames, each holding the end part of a Walz standard Perspex rod to connect various measuring heads of the DUAL-PAM-100 or DUAL-KLAS-NIR. Distance between Perspex rod and leaf: ca. 1 mm on each leaf side.
Pneumatically separated upper and lower cuvette halves. Controlled by a regulator unit with sockets for cable connections to the Control Unit 3000 C of the GFS-3000 and a trigger input line.
Cuvette temperature
Pt 100 type A (located near the Peltier elements), range -10 to 50 °C, accuracy ±0.1 °C
Temperature control
Set point value for cuvette temperature. Cuvette temperature ranging from 10 degrees below ambient to max. +50 °C
Leaf temperature measurement
Thermocouple, range -10 to 50 °C, accuracy ±0.2 °C
External miniature quantum sensor
Mini Quantum Sensor MQS-B/GFS: Selective PAR measurement, range 0 to 2500 μmol m-2 s-1 PAR, accuracy ±5%, cosine corrected
Leaf area
1.3 cm2
Trigger in
Triggers at 5 V → 0 V signal change
Operating temperature
-5 to 45 °C
Dimensions
Assembled cuvette: 10 cm x 4 cm x 12 cm (L x W x H), electronics box : 7 cm x 7 cm x 15 cm (L x W x H)
Weight
Cuvette, electronics box, cables, and mounting frame: 1.7 kg; Mounting Stand ST-101: 2 kg
Design

LED-Panel fitting to the gas exchange chamber 3010-GWK1: Illuminated area 14 cm x 12 cm.
LED Colors: red, green, blue and white; maximum output (all colors together): 2000 μmol m-2 s-1 or better.
Air cooled; with separate power supply. Colors can be mixed with red, green, blue, and white in steps of intensity 0 to 100 or more; total intensity can be chosen in steps of 0.1%; operation with GFS-Win software via RS485 connector.

RGBW High Power LEDs

Blue: 455 ±10 nm, HBW (half bandwidth) 440 - 460 nm
Green: 525 ±10 nm, HBW 500 - 545 nm
Red: 625 ±5 nm, HBW 620 - 640 nm
White: 450 ±10 nm, HBW 435 - 460 nm; second peak at 590 ±25 nm, HBW 510 - 640 nm with tail up to 800 nm

Homogeneity of light distribution

± 10% within the 14x12 cm area or ± 3 μmol m-2 s-1 (whatever is bigger).

PAR measurement

PAR sensors with multiplier between -50 and -800 μmol m-2 s-1 per μA result in a range of 0 to 6400 μmol m-2 s-1, resolution: 1 μmol m-2 s-1

Fuse

10 A slow-blow fuse, 5x20 mm

Input voltage

16 V, 8 A

Voltage inside
up to 36 V
Power supply

AC Power Supply 3020-N for laboratory operation

Operating temperature
-5 to 45 °C
Homogeneity of light distribution

± 10% within the 14x12 cm area or ± 3 μmol m-2 s-1 (whatever is bigger).

Dimension

27 cm x 19 cm x 13 cm L x W x H

Weight
2.8 kg
Design
USB-RS485 converter with galvanic isolation (1kV) and connection cables. Serves to establish a connection between the COMP socket and the USB port of a PC. Also suitable for direct operation of the Standard Measuring Head 3010-S, the DUAL-PAM Gas-Exchange Cuvette 3010-DUAL, the Gas-Exchange Chamber 3010-GWK1, the LED-Panel RGBW-L084, or the Control Units 3000-C, 3100-C or 3200-C with external PC.
Dimensions
box: 8 cm x 4 cm x 2 cm attached cable 30 cm, USB-device cable: 1.5 m
Measuring area
Inner Volume
3 cm x 5 cm x 5.3 cm (L x W x H)
Design
Stable tripod for mounting the Standard Measuring Head 3010-S, the tripod fits into the GFS-3000 transport box
Design
PAM chlorophyll fluorometer enclosed in a metal tube, which can be connected to the Standard Measuring Head 3010-S. Measurement via an optical fiber, entering the leaf chamber of the Standard Measuring Head 3010-S through an air-tight connection
Measuring light
Blue LED (peak: 450 nm), modulation frequency: 10 and 500 Hz. PAR at 2 mm distance and ML-Ampl. 10: Ca. 0.3 μmol m-2 s-1 with low frequency, 15 μmol m-2 s-1 with high frequency
Saturating light
Blue LED (peak: 450 nm). At 1 mm distance: Typ. 11000 μmol m-2 s-1. At 2 mm: Typ. 6000 μmol m-2 s-1
Far-red light
LED (peak: 730 nm)
Signal detection
PIN-photodiode protected by a long pass filter (transmission=50% typ. at 645 nm), selective window amplifier
Measured and calculated parameters
F, FM, FM’, F0, F0’, FV/FM (max. PS II quantum yield), Y(II) (effective PS II quantum yield), ETR, Y(NPQ), NPQ, qN, qP, qL.
Power consumption
0.25 W continuously, 6.5 W (during saturating light pulse), supplied via Standard Measuring Head 3010-S
Operating temperature
-5 to 45 °C
Dimension of light guide
Length: 21 cm,
diameter: 1.5 mm
Dimensions of housing
Length: 20 cm,
diameter: 3 cm
Weight
150 g
Design
For darkening leaf samples in the field, made from plastic material, with sliding shutters, positioning aid and stainless steel clips
Weight
11g
Design
The optical oxygen sensor 3085-O2 for gas measurements contains a sensor, which is based on luminescence quenching of a sensor dye. Molecular oxygen reversibly quenches the luminescence. This principle is very robust, has a very low drift and has virtually no interferences to other gases. Optics and electronics are sealed from the measured gas. Typically, the factory calibration is sufficient during lifetime of the sensor. The signal is temperature compensated.
Range
typical 0 - 50 kPa O2, maximal 0-200 kPa O2
Accuracy (10°C to 40 °C)
±0.02 kPa at 1 kPa; ±0.5 kPa at 20 kPa
(±0.02% O2 at 1%O2; ±0.5%O2 at 20%O2)
Operating temperature
-10°C to 60°C
Detection limit
10 Pa (0.01% O2)
T63 response time
< 2s
Drift@25°C
< 1% O2 / year at 20% O2
Minimum lifetime
> 50 000 000 measurements (1 meas./s)
Storage life
> 5 years in darkness at 20°C
Connector
USB
Supply voltage
3.3-5V supplied via USB
Current
8-10 mA
Weight
160 g
Dimensions
body: 8 cm x 5 cm x 5 cm
with rolled-up cable: 8 cm x 15 cm x 5 cm
Design
Adapter plate with snap-on-mount for connecting IMAG-MINI Head to Standard Measuring Head 3010-S
Dimensions
9.5 cm x 6 cm x 1.4 cm (L x W x H)
Weight
30 g

Adapter IMAG‐MIN/GFS for IMAGING-PAM (MINI-Version) on Gas Exchange Standard Measuring Head (3010-S)

Design
Adapter plate with snap-on-mount for connecting IMAG-Mini Head to Standard Measuring Head 3010-S; 9.5 cm x 6 cm x 1.4 cm ( L x W x H)
Weight
30 g
Design
High-performance maintenance-free rechargeable Li-ion battery with protection circuit. Use two batteries simultaneously.
Nominal voltage
14.4 V
Maximum Current Discharge
8 A continuous, current delivery may be limited below 10°C
Typical capacity
6.8 Ah
Operating temperature
-5 to +60°C (discharge) and 0 to 45°C (charge)
Storage temperature limits
-20 to 60°C, < 80%RH
Recommended storage temperature
< 21°C, in low humidity, free from corrosive gas. Temperatures above 45°C could degrade life.
Dimensions
5.3 cm x 7.9 cm x 2.3 cm (L x W x H)
Weight
0.45 kg
Design
Charger for charging of four eSmart Li-ion Batteries simultaneously. With active thermal management system, cooling fan, and OLED display showing for each battery: capacity (%), temperature, voltage, number of cycles and charging current.
Input voltage
90-240 AC input /150 W
Maximum charging current per bay
2 A
Recharging time for each battery
3-4 hours
Mains power supply
100 to 240 V AC, 50/60 Hz
Dimensions
27 cm x 17.6 cm x 5.3 cm
Weight
1.6 kg
Design
2.5 m fiberglass rod, holder for rod, 10 l air buffer volume with pneumatic connectors air in and air out, luggage net, 27 cm and 3 m hose with pneumatic connectors, 66 cm x 30 cm heat protection sunshield
Weight
1.2 kg