Specifications for GFS-3000: Control Unit, Power Supply, Batteries, Charger and Accessory

Control Unit 3200-C

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:
CO2 absolute: Max. error between 0 and 600 ppm: 12 ppm, between 600 and 3000 ppm: 2% of measured value
Deviation of differential CO2 zero with changing CO2: Typ. less than 0.5 ppm
H2O absolute: Max. error between 0 and 15000 ppm: 330 ppm, above 15000 ppm: 2% of measured value
Deviation of differential H2O zero with changing H2O: 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 photosyn­thesis, intercellular CO2 concentration. In combination with LED-Array/PAM Fluorometer 3057‑FL (GFS-3000FL): Fo, Fm, Fm', F, Fo', 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)