Chlorolab 2+ is an advanced system for the study of respiration and photosynthesis from liquid samples under automated illumination from a white, red or blue LED light source (colour selected at point of purchase). The system automates the acquisition of oxygen evolution/uptake rates over user-defined light intensities to determine the apparent quantum yield.
Features
Liquid-phase oxygen electrode system for advanced photosynthesis & respiration studies
- PC-operated USB Oxylab+ electrode control unit
- DW2/2 advanced electrode chamber with 4 optical ports & integral S1 oxygen electrode disc
- LED1/W white LED light source (up to 2,000 µmol m-2 s-1) with automated control via user-defined PFD light tables
- Suitable for liquid-phase samples between 0.2ml – 2.5ml (min. 1.5ml if illuminated) with 0% – 100% oxygen concentration
- 24-bit high-resolution measurement of oxygen signals
- Integral systems for measurement of pH & other ion-selective electrode (ISE) signals with 16-bit resolution
- Onboard LCD readings of oxygen, auxiliary & ISE signals
- 2-channel capability via purchase of additional systems
- Quantitherm PAR/Temp sensor for light source calibration
- OxyTrace+ Windows® software for data acquisition, hardware control & data analysis
- Real time 0V – 4.5V analogue output of oxygen signal.
Technical Specifications
Oxyview 1 electrode control unit
- Measuring range: Oxygen: 0% – 100%
- Signal inputs: Oxygen electrode (SMB)
- Resolution: 10 x 10-6 μmols/ml at 20°C
- Polarising voltage: Selectable between 0.4V – 0.9V (0.7V recommended default)
- Gain: Coarse: x1, x2, x5, x10, x20, x50, x100. Fine: 1mV steps
- Back off: Signal back off in 1mV steps
- Analogue output: 0V – 5V electorde signal
- Dimensions (HWD): 90mm x 135mm x 85mm
- Weight: 320g
- Power: 95V – 260V universal input mains supply. Output 12V DC 2.5A
DW2/2 electrode chamber
- Suitability: Liquid-phase photosynthesis/respiration
- Construction: Black acetal
- Sample chamber: Precision-bore, borosilicate glass tube
- Sample volume: 0.2ml – 2.5ml (1.5ml min. for illumination)
- Plunger: Variable-height, capped central bore
- Temperature control: Water jacket connected to circulating water bath
- Optical ports: 4 x optical port with 16mm diameter
- Dimensions: 105mm x 65mm
- Weight 400g.
S1 oxygen electrode disc
- Electrode type: Clark-type polarographic oxygen sensor
- Electrode output: Typically 1.6µA at 21% O2
- Residual current: Typically 0.04µA in 0% O2
- Response time: 10 – 90% typically <5 seconds
- Oxygen consumption: Typically <0.015µmol/hr-1
LED1 light source
- Light source: Single LED
- Control: Via Oxylab+ and OxyTrace+ software
- Wavelength:
- LED1/W – 4100K (colour temperature)
- LED1/R – 627nm peak wavelength
- LED1/B – 470nm peak wavelength
- Cooling: Integral automatic cooling fan
- Intensity: 2,000 µmol m-2 s-1 (greater intensities possible with multiple LED1 units)
- Dimensions: 64mm (dia.) x 60 mm (h).
- Weight: 270g.
QRT1 PAR/Temperature sensor
- Measuring range: 0 μmol m-2 s-1 – 50,000 μmol m-2 s-1 (+/- 5%) in 2 ranges (0 μmol m-2 s-1 – 5,000 μmol m-2 s-1 & 0 – 50,000 μmol m-2 s-1) in 400nm – 700nm band
- Resolution:
- 1 µmol m-2 s-1 at 0 µmol m-2 s-1 – 5,000 µmol m-2 s-1
- 10 μmol m-2 s-1 at 5,001 µmol m-2 s-1 – 50,000 µmol m-2 s-1
- PAR sensor: Silicon photodiode and optical filter with white acetal diffuser
- Temperature sensor: RT curve-matched bead thermistor. 0°C – 50°C/32°F – 122°F (0.02°C resolution)
- Signal display: Hand-held display unit. 16 x 2 LCD display. 0V – 5V analogue output of PAR/temperature values
- Power requirements: 4 x 1.5V AA (LR6) cells. Typically 100 hours battery life
- Dimensions:
- Display: 146mm x 92mm x 32mm. Weight 300g
- QTP1+: 9.5mm x 107mm. Weight 50g
