Specifications

Temperatures

• Operating Temperature Range: 0 – 50 °C
• Storage Temperature Range: -20 – 60 °C
• Temperature Control Range:
  • Leaf Temperature: ±10 °C from ambient
  • Setpoint Resolution: 0.1 °C
• Chamber exhaust air temperature and temperature control block:
  • Type: Thermistor
  • Range: -10 – 60 °C
  • Accuracy: ±0.15 °C
• Leaf temperature sensor:
  • Type: Type E fine-wire thermocouple
  • Sensitivity Range: -10 – 60 °C
  • Accuracy: <±0.5 °C total; ±0.2 °C cold junction reference; ±0.3 °C thermocouple when within ±10 °C of cold junction temperature

Communication

• RJ-45 Ethernet; IP/TCP for networks and computers: 1
• Head Connections: 2
• Accessory Connections: 2

Air Flow Rates

• Bulk Flow Rate: 680 – 1700 µmol s^-1 at SATP1
• Leaf Chamber Flow Rate: 0 – 1400 µmol s^-1 at SATP

Pressure

• Console Pressure Sensor:
  • Operating Range: 50 – 110 kPa
  • Accuracy: ±0.4 kPa
  • Resolution: 1.5 Pa typical
  • Signal Noise: ≤0.004 kPa peak-to-peak with 4-second signal averaging
• Chamber Pressure Sensor:
  • Range: -2 – 2 kPa
  • Resolution: <1 Pa typical
  • Signal Noise: 1 Pa peak-to-peak with 4-second signal averaging
  • Setpoint Resolution: 1.0 Pa
  • Control Range: 0 – 0.1 kPa (dependent on flow rate through the chamber)

Batteries

• Weight: 0.435 kg
• Capacity: 6800 mAh
• Type: Lithium Ion
• Storage: -20 – 60 °C; ≤80% RH

CO₂ Control

• CO₂ Control Range: 0 – >2000 µmol mol^-1 (with pump set to low; dependent on bulk flow rate)
• CO₂ Cartridge Type: 8 gram
• Cartridge Lifetime: >8 hours after puncture (dependent on setpoint)
• CO₂ Scrubber: Soda lime

H₂O Control

• H₂O Control Range: 0 – 90% RH (noncondensing)
• Humidifier Substrate: Nafion
• Desiccant: Silica Gel (BASF Sorbead^® Orange CHAMELEON^®)

Light Measurement

• Chamber and light source PAR sensors:
• Sensitivity Range: 0 – 3000 µmol m^-2 s^-1
• Resolution: <1 µmol m^-2 s^-1
• Calibration Accuracy: ±5% of reading; Traceable to the U.S. National Institute of Technology (NIST)
• External LI-190R PAR Sensor:
• Detector: Silicon photodiode
• Sensitivity: 5 – 10 µA per 1000 µmol s^-1 m^-2
• Calibration Accuracy: ±5% of reading; Traceable to NIST

Aquatic Chamber

Sample Cuvette:

• Wetted Materials: 316 stainless, float glass, Viton, PTFE, silicone, acetal
• Cuvette Working Volume: 0 – 20 mL, 15 mL recommended sample volume

CO₂ Gas Analyzer:

• Operating Principle: Non-dispersive Infrared (NDIR)
• Measurement Range: 0 – 3100 µmol mol^-1
• Precision (1-sigma) @ 4 Second Averaging @ 400 µmol mol^-1: < 0.1 µmol mol^-1
• Accuracy: 1% of reading at > 200 µmol mol^-1, +/- 2 µmol mol^-1 at < 200 µmol mol^-1

CO₂ Control:

• Range: 0-2,000 µmol mol^-1
• Support for custom gas blends through external fittings on the air supply

Fluorometer (6800-01A):

• Red/Blue Actinic Light Output: 0 – 3000 µmol m^-2 s^-1
• Far-red Light Output: 0 – 20 µmol m^-2 s^-1
• Saturation Flash Intensity: 0 – 16,000 µmol m^-2 s^-1
• Red Actinic Peak Wavelength: 625 nm
• Blue Actinic Peak Wavelength: 475 nm
• Far-red Peak Wavelength: 735 nm

Temperature:

• Operating Temperature: 0 to 50 °C with no solar load (non-freezing)
• Storage Temperature: -20 to 60 °C with chamber clean and dry
• Temperature Control: User provided water bath. #10-32 threaded connections to chamber.

Operating Fluid Environment:

• Temperature: non-freezing to 50 °C
• Salinity: 0 – 35 %

Auxiliary Ports:

• pH (probe not included): 12 mm diameter O-ring sealed port and integrated amplifier. Passive glass-electrode based pH probe, with BNC connector (nominal -59 mV/pH slope, user calibrated).
• Septa: Silicone-PTFE septa

Clear-top Chamber

• Maximum Leaf Area: 9 cm²
• Size: 15.4 x 11.5 x 5.9 cm (L x W x H)
• Weight: 0.3 kg

Small Light Source

• Total Output Range: 0 – >2000 µmol m^-2 s^-1 at 25 °C
• Blue Output Range: 0 – >400 µmol m^-2 s^-1 at 25 °C
• Red Output Range: 0 – >1600 µmol m^-2 s^-1 at 25 °C
• Red Peak Wavelength: 660 nm
• Blue Peak Wavelength: 453 nm
• Uniformity:
  • ±10% Over 90% of the aperture with white top gasket, typically
  • ±10% Over 77% of the aperture with black gasket, typically
• Power Consumption: 2000 µmol m^-2 s^-1 <5 watts
• Operating Temperature Range: 0 – 50 °C
• Size: 6.6 x 5.9 x 5.8 cm (L x W x H)
• Weight: 0.21 kg

Large Light Source

• Total Output Range: 0 - >2500 µmol m^-2 s^-1 at 25 °C
• Blue Output Range: >2000 µmol m^-2 s^-1 at 25 °C
• Green Output Range: >1000 µmol m^-2 s^-1 at 25 °C
• Red Output Range: >2400 µmol m^-2 s^-1 at 25 °C
• White Output Range: >1500 µmol m^-2 s^-1 at 25 °C
• Blue Peak Wavelength: 453 nm
• Green Peak Wavelength: 523 nm
• Red Peak Wavelength: 660 nm
• White Color Temperature: 4000 K
• Uniformity: ±10% over 90% of the aperture
• Power Consumption: 15 W at 2000 µmol m^-2 s^-1 equal parts red, green, blue, and white
• Operating Temperature Range: 0 – 50 °C
• Operating Relative Humidity Range: 0 – 85%
• Size: 11.7 × 11 × 13 cm (L × W × H)
• Weight: 0.54 kg

Small Plant Chamber

• Chamber Volume: 193.2 cm³ (internal volume)
• Internal Dimensions: 7 cm diameter; 4.46 cm deep
• External Dimensions: 8.4 cm wide (chamber block) × 12.7 cm long (chamber manifold interface to tip of chamber) × 6.47 cm (bottom of chamber manifold to top of chamber)
• Weight: 0.60 kg

Custom Chamber Adapter

• Chamber Volume: 34.2 cm³ (internal volume)
• External Dimensions: 3.18 × 7.67 × 5.85 cm (L × W × H)

Insect Respiration Chamber

• Chamber Volume: 49.9 cm³ (not including tubing)
• Exterior Dimensions: 11.25 cm length; 3 cm diameter
• Weight: 0.07 kg

Multiphase Flash™ Fluorometer

• Modulated Light: Software controlled and software selectable frequencies of 1 Hz – 250 kHz
• Measuring Light Peak Wavelength: 625 nm
• Red Actinic and Saturating Flash Peak Wavelength: 625 nm
• Blue Actinic Peak Wavelength: 475 nm
• Far-red Peak Wavelength: 735 nm
• Actinic Light Output:
  • 0 – 3000 µmol m^-2 s^-1 total at 25 °C
  • 0 – 1000 µmol m^-2 s^-1 blue at 25 °C
  • 0 – 2000 µmol m^-2 s^-1 red at 25 °C
• Saturation Light: Software controlled intensity; 0 – 16,000 µmol m^-2 s^-1 at 25 °C
• Far-red Light: Software controlled intensity; 0 – 20 µmol m^-2 s^-1 at 25 °C
• Fluorescence Signal Temperature Dependence: -0.25% per °C
• Uniformity:
  • <±10% over 92% of the aperture with white top gasket
  • <±10% over 90% of the aperture with black top gasket
• Power Consumption:
  • <18 W at 25 °C with 3000 µmol m^-2 s^-1 actinic light
  • <60 W at 25 °C with 16,000 µmol m^-2 s^-1 saturating flash
• Leaf Area: 6 cm² or 2 cm²; Round apertures
• Size: 16.6 x 11.5 x 13.6 cm (L x W x H)
• Weight: 0.86 kg

Large Leaf and Needle Chamber

• Maximum Leaf Area: 36 cm²
• External Dimensions: 11.5 cm wide (spring to spring) x 16.8 cm long (front of chamber to back of chamber link) x 5.9 cm tall (bottom of chamber manifold to top of chamber)
• Weight: 0.35 kg

Large Leaf and Needle Chamber with Conifer Sprig Blocks

• Maximum Planar Leaf Area: 36 cm²
• Internal Chamber Height: 6.7 cm
• External Dimensions: 11.5 cm wide (spring to spring) x 16.8 cm long (front of chamber to back of chamber link) x 7.2 cm tall (bottom to top of chamber)
• Volume: 25.68 in³ or 420.8 cm³

Bryophyte Chamber

• Chamber Volume: 193.2 cm³ (internal volume)
• Internal Dimensions: 7 cm diameter; 4.45 cm deep
• External Dimensions: 8.4 cm wide (chamber block) × 12.7 cm long (chamber manifold interface to tip of chamber) × 6.47 cm (bottom of chamber manifold to top of chamber)
• Weight: 0.60 kg

Soil CO₂ Flux Chamber

• Chamber Volume: 4244.1 cm³
• IRGA Volume: 57 cm³
• Soil Area: 317.8 cm² (49.3 in²)
• Air Temperature Thermistor:
  • Operating Range: -20 to 45 °C
  • Accuracy: ±0.5 °C over 0 °C to 70 °C
• Weight: 4.06 kg