Dynamic chamber method, portable measurement system for measuring soil CO2 flux.
Product Introduction:
The PS-9000 is a portable measurement system for measuring soil CO2 flux , employing a dynamic gas chamber method and featuring a patented design.
The PS-9000 has functions such as control measurement, storage and data processing. It can measure the change of CO2 concentration in the breathing chamber , and calculate the CO2 flux by combining data from sensors such as air temperature, atmospheric pressure and soil temperature .
The PS-9000 can be operated wirelessly via a handheld controller, displaying various parameter values measured by the instrument in real time, and allowing for on-site modification of various settings.
Main features:
Flux values are accurately measured and verifiable;
The user interface is simple, and results can be obtained with a single click.
Lightweight and easy to carry;
Low power consumption, convenient for outdoor all-day measurement;
Measurement results can be displayed and stored directly without the need for data post-processing.
Technical Specifications:
PS-9000 Control System:
| Measurement principle | Nondispersive infrared |
| Measurement range | CO2: 0 - 6000 ppm |
| H2O: 0 - 60000 ppm | |
| Accuracy | <1% of the reading value |
| Repeatability/Accuracy | <1ppm |
| Operating temperature | -20 to 60 ℃ |
| Instrument power | <40W |
| storage media | SD card |
| Communication interface | WIFI, RS-232, SDI-12 |
| Synchronous pump | 12V, <0.5A |
| Flow rate | 3L/min |
| Battery Type | 24V-8AH lithium battery |
| Battery life | 3-4 hours (single battery) |
| size | 37x30x16cm |
| weight | 6.8kg (including one battery) |
SC-12N Portable Soil Breathing Chamber
| Measured area | 276.27 cm² |
| fixed volume of air chamber | 3436.13 cm3 |
| Cable length | 2m |
| Instrument power | <2.2W |
| size | 27.5 x 24.5 x 44.5 cm |
| weight | 3.85kg |
Soil temperature and humidity sensor
Humidity parameters
| Measurement range: | |
| Applicable media | scope |
| Mineral soil | 0.00-0.70 m3/m3 |
| Soilless substrate | 0.0-1.0 m3/m3 |
| Precision range: | accuracy |
| General calibration | ±0.03m³/m³ (Applicable to mineral soils with solution conductivity <8 dS/m) |
| Media-specific calibration | ±0.01-0.02 m³/m³ (applicable after individual calibration on any porous medium) |
Temperature parameters
| Temperature range | -40℃ to +60℃ |
| Temperature accuracy | At -40℃ to -0℃: ±1℃ |
| At 0℃-60℃: ±0.5℃ |
Manual transparent breathing chamber
| Measured area | 276.27 cm² |
| Measure volume | 2973.11 cm3 |
| Work environment | -20-60℃ |
| Cable length | 2 meters |
| Product Dimensions | 27.4 x 26 x 21.3 cm |
| Product weight | 2.4kg |
