The LK-2102 Portable CO2/H2O Flux Measurement System utilizes Non-Dispersive Infrared (NDIR) technology to measure CO2 and H2O concentrations in the ambient environment or within enclosed chambers. Depending on the measurement scenario, different front-end sampling modules can be selected, such as the SFC-20 portable soil flux chamber, SNC-50 photosynthesis/respiration chamber, and WSF-20 portable water surface flux chamber. Based on the selected sampling module, users can customize sample collection parameters. The control system automatically performs real-time flux (respiration rate) calculations according to the predefined settings.
Key Features
Technical Parameters
|
Analyzer Technology |
Non-Dispersive Infrared (NDIR) Gas Analyzer with automatic temperature and pressure compensation |
|
CO2 Measurement Range (Optional) |
0-1000 ppm, 0-2000 ppm (standard), 0-5000 ppm, 0-10000 ppm, 0-20000 ppm，0-30000 ppm，0-50000 ppm，0-100000 ppm（10%） |
|
Accuracy |
1000 ppm range: ±0.1% 2000 ppm range: ±0.1% 5000 ppm range: ±0.5% Better than 1% of reading across all ranges |
|
Pressure Compensation Range |
80-115 kPa |
|
Stability |
Features periodic auto-zeroing to correct for errors from sample chamber contamination, light source aging, and detector drift. Includes amplifier gain functionality. |
|
Gas Flow Rate Range |
1 L/min (adjustable) |
|
Communication |
Bluetooth |
|
Analog Output |
0-5V Linear Output (CO2 & H2O), 4-20mA (CO2) |
|
Sensor input |
1 Probe Input Channel (0-1V) |
|
Power Supply |
6-18V (DC); Built-in battery for up to 8 hours of continuous measurement |
|
Power Consumption During Stable Operation |
Normal operation: 1.3 W During warm-up: 8 W |
|
Data Output |
CSV files |
|
Operating Environment |
-20°C-50°C, 0-95% humidity |
|
Dimensions |
430*345*164 mm |
|
SFC-20 Portable Soil Flux Chamber (Standard, Optional). |
|
|
Chamber Type |
Darkroom (stainless steel) |
|
Overall Dimensions |
34×29×40 cm（L×W×H） |
|
Weight |
Approximately 7.5 kg |
|
Operation Mode |
Automated Open/Close |
|
Communication |
WIFI |
|
Power Supply |
12V, Built-in 5600 mAh Rechargeable Lithium Battery |
|
Measurement Method |
Flow-Through Measurement |
|
External Sensors |
Air Temperature, Humidity, Pressure; Soil Three-Parameter Sensor (Temperature, Moisture, Electrical Conductivity) |
|
Measure Area/Volume |
314 cm2/2093 cm3 |
|
Positioning Module |
BeiDou/GPS Dual-Mode |
|
Operating Environment |
Temperature: -20~45°C; Humidity: <99% R.H (non-condensing) |
Standard Configuration
Optional air chamber
Manufactured : Eco-mind, China
