Portable Photosynthesis System

Specification:
CO2 & H2O Gas Analysis
The TARGAS-1 console is compact, lightweight (2.1 kg), and packaged in a rugged, aluminum enclosure with a shock-absorbing polyurethane base, making it extremely robust and reliable under harsh environmental conditions. It incorporates two non-dispersive infrared gas analyzers for CO2 and H2O ensuring accurate measurement and control of both CO2 and H2O. An internal air supply unit provides accurately controlled reference air to the leaf cuvette, and another pump draws the sample (analysis) air to the gas analyzer. Both pumps are user-controlled and two internal electronic flow sensors ensure accuracy.
Analysis Method Two non-dispersive infrared gas analyzers, configured
as an absolute absorptiometer with microprocessor
control of linearization for both CO2 and H2O. All
readings are automatically corrected for temperature,
pressure and foreign gas broadening.
CO2 Range 0 – 10000 µmol mol-1
Precision: 1 µmol mol-1
H2O Range 0 – 75 mb
Pressure 55 – 115 kPa
Compensation Range
Absolute Accuracy < 1% of span concentration over the calibrated
range but limited by the accuracy of the
calibration mixture
Differential Accuracy +/- 1 umol mol-1 for CO2 differential up to
50 µmol mol-1
Linearity < 1% throughout the range
Stability Auto-Zero at regular intervals corrects for sample
cell contamination, source and detector aging
and changes in electronics.
Calibration User programmable calibration (if required)
Warm-up Time Approximately 15 minutes
Air Supply Unit Integral pump for supply of reference air to the
leaf cuvette
Range: 200 – 500 cc/min
CO2 and H2O Control: User adjustable from 0 – 100%
of ambient. A smoothing volume is recommended
for fresh air intake.
An internal electronic flow sensor monitors flow rate.
Sampling Pump Integral pump for sample (Analysis) air
Range: 50-200 cc/min
An internal electronic flow sensor monitors flow rate.
Sampling Rate 10 Hz. Sample data is averaged and output every
1.0 seconds.
Digital Output USB
Gas Flow Rate 200-500 cc/min (280-340 cc/min is optimal). An
internal electronic flow sensor monitors flow rate.
Terminal Block 10 pin terminal block for system inputs and outputs
Analog Output 0 – 2.5V (CO2 range selectable)
Digital Output One mini USB for connection to external PC
Environmental Sensor 2 inputs available for use with external chambers
Inputs and environmental sensors
Alarm Visual and audible alarm/warnings
Data Storage (USB) USB Flash Drive port for data storage in multiple
formats
Mini USB For connection to external PC
Touch Display 2.7” electronic paper touch display with 264 x 176
pixel resolution
Power Internal, rechargeable 7.4V, 8.7 Ah Li-Ion battery
provides up to 10 hours of continuous use
Power Consumption Warm up: 15W (12V @ 1.0A)
Normal operation: 7.2W (12V @ 0.6A)
Enclosure Rugged, ergonomic, lightweight aluminum with
polyurethane base
Gas Connections Two quick connect fittings (inlet and exhaust) for
use with 1/8” (.125”) ID tubing
Operating Temperature 0 – 50°C, non-condensing
External filtration is recommended in dirty/dusty
environments.
Dimensions 20 cm L x 20 cm H 10 cm W (Enclosure only)
Weight 2.1 kg