Specifications

MODULAR Version

Power-and-Control-Unit DUAL-C

General design: Microcontroller: 2 x AVR-RISC (8 MHz) + 4 MB SRAM; 256 000 data points with 12 bit resolution can be stored

Communication: PC interface: USB 1.1, 2.0 and 3.0 compatible

User interface: Windows computer with DualPAM software

Power supply: Rechargeable sealed lead-acid battery 12 V/2 Ah; Battery Charger MINI-PAM/L (100 to 240 V AC)

Power consumption: During basic operation 160 mA

 

 

Sockets: 6 ports for measuring heads (power for single wavelength and double wavelength modulated measuring light, power for 2 LED arrays, input for 2 detectors), socket for stirrer (plus speed controller and standby switch), AUX (for Leaf Clip 2030-B or Spherical Micro Quantum Sensor US-SQS/WB or Cosine-Corrected Mini Quantum Sensor US-MQS/WB), USB (for USB cable), TRIGGER IN (input for 5 V rectangular signals to trigger fast kinetics externally), TRIGGER OUT (output of 5 V rectangular signals to trigger external devices), 2 EXT. SIGNALS (input for external DC signals. Range 0 - 1V or 0 - 5 V), and CHARGE (for MINI-PAM/L charger).

Dimensions: 31 cm x 16 cm x 33.5 cm (W x H x D), with carrying handle

Weight: 4.5 kg


Measuring Head with P700 NIR Emitter DUAL-E

Measuring light: P700 dual-wavelength emitter. Sample wavelength 830 nm, reference wavelength, 870 nm

Actinic light: Far-red LED lamp: 720 nm. Chip-on-board (COB) LED array: 635 nm for continuous actinic illumination, maximum 3000 μmol m-2 s-1 PAR. Saturating single turnover flashes, maximal 200 000 μmol m-2 s-1 PAR, adjustable between 5 and 50 μs. Multiple turnover flashes, maximal 20 000 μmol m-2 s-1 PAR, adjustable between 1 and 1000 ms

Dimensions: 10.5 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 400 g (incl. cables, 1 m long)

 

Measuring Head with Detector,
DUAL-DB (Blue) or DUAL-DR (Red)

Measuring light: Fluorescence emitter: 460 nm (DUAL-DB); or 620 nm (DUAL-DR)

Actinic light: Blue (460 nm) LED lamp for continuous actinic illumination, maximum PAR 1100 μmol m-2 s-1. Chip-on-board LED array identical to that of DUAL-E measuring head

Signal detection: PIN photodiode with special pulse preamplifier for measuring P700 and fluorescence changes with maximal time resolution of 30 μs. Fluorescence is detected at wavelengths longer than 700 nm

Dimensions: 15 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 500 g (including cables, 1 m long)


Transport Box

Design: Aluminum box with custom foam packing for DUAL-PAM-100 and accessories

Dimensions: 60 cm x 40 cm x 25 cm (L x W x H)

Weight: 5 kg

Computer Requirements

1 free USB socket; 500 or more MB RAM; operating system: Microsoft Windows XP/Vista/7/8/10

 




Accessories


P515/535 Emitter-Detector Module

P515/535 Emitter Head DUAL-EP515

Measuring light: 520 and 550 nm dual wavelength pair, 535 nm single wavelength

Actinic light: Chip-on-board LED array, identical to that of Measuring Head DUAL-E

Dimensions: 10.5 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 400 g (incl. cable, 1 m long)

P515/535 Detector Head DUAL-DP515

Signal detection: PIN photodiode with special pulse preamplifier. Detection window, 400 nm – 580 nm

Dimensions: 15 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 400 g (incl. cable, 1 m long)

 



Acridine Orange Fluorescence Emitter-Detector Module

Acridine Orange Emitter Head
DUAL-EAO

AO measuring light: 455 nm

Dimensions: 10.5 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 400 g (incl. cables, 1 m long)

 

Acridine Orange Detector Head
DUAL-DAO

Signal detection: PIN photodiode with special pulse preamplifier. Detection window, 500 nm – 580 nm

Chlorophyll fluorescence measuring light: Modulated excitation at 620 nm

Actinic light: Blue (460 nm) LED lamp for continuous actinic illumination, maximum PAR 700 μmol m-2 s-1. Chip-on-board LED array identical to that of DUAL-E measuring head

Dimensions: 15 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 500 g (incl. cable, 1 m long)



NADPH Fluorescence Emitter-Detector Module

Emitter Head DUAL-ENADPH

NADPH measuring light: 365 nm

Chlorophyll fluorescence measuring light: Modulated excitation 620 nm

Actinic light: Far red LED lamp: 740 nm. Chip-on-board LED array identical to that of DUAL-E

Dimensions: 15 cm x 5.5 cm x 7 cm (L x W x H)

Weight: 500 g

Detector Head DUAL-DNADPH

Signal detection: Blue-sensitive photomultiplier with filter sandwich transmitting from 420-550 nm

Dimensions: 10 cm x 6.5 cm x 10.5 cm (L x W x H)

Weight: 460 g (incl. cable, 1 m long)

 



Detectors with Increased Sensitivity: DUAL-DPD and DUAL-DPM

Photodiode Detector DUAL-DPD

Signal detection: PIN photodiode with special pulse preamplifier. Fluorescence is detected at wavelengths longer than 650 nm

Filter holder: For optical filters (standard 30 x 30 mm), up to 15 mm thick

Dimensions: 9.7 cm x 7.1 cm x 7.8 cm (L x W x H)

Weight: 350 g

 

Photomultiplier Detector DUAL-DPM

Signal detection: 8 mm diameter side-on photomultiplier tube with a high voltage power supply assembled in a compact aluminum housing (Hamamatsu H6779). Two filters are provided for fluorescence detection at wavelengths > 650 nm or > 700 nm

Filter holder: With cover. For optical filters (standard 30 x 30 mm), up to 15 mm thick

Dimensions: 100 mm x 66 mm x 108 mm (L x W x H)

Weight: 490 g (incl. cable, 1.5 m long)

Amplifier Box PM-101/N

Included in extent of delivery of NADPH/9-AA Photomultiplier Detector Unit or Photomultiplier Detector DUAL-DPM.

Design: Aluminum chassis with texture paint. Line input 115/230 V AC, 50-60 Hz, 0.04/0.02 A. Two rotary buttons permit selection of 6 coarse amplification factors which 11 subdivisions.

Dimensions: 11 cm x 11 cm x 7 cm (L x W x H)

Weight: 700 g



Special Cuvettes: ED-101US/MD, DUAL-K25 and 3010-DUAL

Optical Unit for Suspensions ED-101US/MD

Design: Black-anodized aluminum body with central 10 x 10 mm standard glass cuvette; for attachment of Measuring Heads DUAL-DB (or DUAL-DR) and DUAL-E and Miniature Magnetic Stirrer PHYTO-MS; additional ports for attachment of two additional measuring heads (e.g. acridine orange, and NADPH fluorescence)

Weight: 750 g

Accessories for ED-101US/MD

Temperature Control Block ED-101US/T: Sectioned block with central 10 x 10 mm opening to be mounted on top of the ED-101US/MD unit; to be connected to external flow-through water bath (not included), weight: 250 g

Miniature Magnetic Stirrer PHYTO-MS: Based on device manufactured by h+p (type Variomag-Mini); featuring adapter to be mounted in bottom port of the Optical Unit ED-101US/MD; powered and controlled by the Power-and-Control-Unit DUAL-C

Spherical Micro Quantum Sensor US-SQS/WB: 3.7 mm Ø diffusing sphere coupled to integrated PAR sensor via 2 mm diameter fiber; compact amplifier unit and special holder for mounting on Optical Unit ED-101US/MD; to be connected to the Power-and-Control-Unit DUAL-C

DUAL-PAM-100 Gas-Exchange Cuvette 3010-DUAL

Design: Cuvette consisting of 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. Sealing material between frames and leaf: silicon foam gasket. 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 3000 C control unit of the GFS-3000. Leaf area examined: 1.3 cm2. Leaf temperature measurement: thermocouple, range -10 to +50 °C, accuracy ±0.2 °C. External cosine-corrected Micro Quantum Sensor MQS/A for PAR measurements ranging from 0 to 2500 μmol m-2 s-1, accuracy ±5 %

Operating temperature: -5 to +45 °C

Dimensions: Assembled cuvette: 10 cm x 4 cm x 12 cm (L x W x H), electronic box: 7 cm x 7 cm x 15 cm (L x W x H)

Weight: Cuvette, regulator unit, cables, and mounting frame: 1.7 kg; mounting stand ST-101: 2 kg

 


Cuvette for Low-Drift Absorbance Measurements DUAL-K25

Design: Quartz glass cuvette, cross section: 10 mm x 10 mm, external dimensions: 12.5 mm x 12.5 mm x 26 mm (L x W x H). Special cuvette holder to position the cuvette between two measuring heads. U-shaped black-anodized aluminum shields to screen out external light. Three sealing gaskets to protect lower measuring head from spills.



Temperature Control Unit US-T

Power-and-Control Unit US-T/DR

Display: Three line LCD display

Control range: 0 °C to 50 °C at 0.1 K steps

Operating voltage: 11 V - 14 V DC

Maximum Peltier current: 1 A

Size: 105 mm x 90 mm x 130 mm (W x H x D)

Weight: 0.57 kg

Peltier Heat-Transfer Head US-T/DS

Achievable temperatures: 12 K below ambient temperature, 15 K above ambient temperature (Quartzcuvette placed in Optical Unit for Suspensions ED-101US/MD with 1.5 mL water and stirrer PHYTO-MS on)

Size: Æ 55 mm, 110 mm height

Cable length: 130 cm

Weight: 0.29 kg (including cable)

AC Adapter

Input: 100 V - 240 V AC 1.5 A 50-60 Hz

Output: 12 V DC 5.5 A

Size: 130 mm x 56 mm x 30 mm (L x W x H)

Weight: 0.50 kg (including cable)

Linear Positioning System 3010-DUAL/B

Design: Consisting of black anodized aluminum baseplate with gear rack on which one measuring head holder is fixed and another measuring head holder is mounted on a movable stage which can be precisely positioned along the gear rack by a lateral adjustment knop. Includes a 13 cm lab stand rod which can be screwed-on to the bottom of the baseplate and a 3 mm Allen wrench.

Dimensions: 18.5 cm x 11.5 cm x 12 cm (L x W x H, max. without lab stand rod)

Weight: 1050 g

Two-way Adapter for Unilateral Actinic Illumination

Design: Two-way adapter consisting of male and female 15 pin sockets with aluminum housing.

Dimensions: 11 cm x 4 cm x 1.5 cm (L x W x H)

Weight: 110 g



Subject to change without prior notice