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| Brand | Campbell Scientific |
|---|---|
| Model | IRGASON |
| Origin | USA |
| Type | Integrated Open-Path Eddy Covariance System |
| Operating Temperature | −30 to +50 °C |
| Operating Pressure | 70–106 kPa (expandable) |
| Supply Voltage | 10–16 VDC |
| Average Power Consumption | 5 W @ 25 °C |
| Measurement Frequency | 60 Hz |
| Output Bandwidth Options | 5, 10, 12.5, 20 Hz |
| Data Output Interfaces | SDM, RS-485, USB, Analog (CO₂/H₂O only) |
| Gas Path Length | 15.37 cm |
| CO₂ Accuracy | ±1% of reading |
| H₂O Accuracy | ±2% of reading |
| CO₂ Precision (RMS) | 0.2 mg/m³ (0.15 µmol/mol) |
| H₂O Precision (RMS) | 0.004 g/m³ (0.006 mmol/mol) |
| CO₂ Calibration Range | 0–1,000 µmol/mol (extendable to 3,000 µmol/mol) |
| H₂O Calibration Range | 0–72 mmol/mol (at 38 °C dew point) |
| CO₂ Temperature-Dependent Gain Drift | ±0.1% reading/°C |
| H₂O Temperature-Dependent Gain Drift | ±0.3% reading/°C |
| CO₂–H₂O Cross-Sensitivity | ±1.1×10⁻⁴ mol CO₂/mol H₂O |
| H₂O–CO₂ Cross-Sensitivity | ±0.1 mol H₂O/mol CO₂ |
| Ultrasonic Anemometer Path Lengths | Vertical 10.0 cm, Horizontal 5.8 cm |
| Wind Speed Range (uₓ/uᵧ) | ±65 m/s |
| Wind Speed Range (u_z) | ±8 m/s |
| Wind Direction Range | 2.5°–357.5° (0–360° customizable) |
| Ultrasonic Temperature Range | −50 to +60 °C |
| uₓ/uᵧ Offset Error | <±8.0 cm/s |
| u_z Offset Error | <±4.0 cm/s |
| Wind Direction Offset Error | ±0.7° |
| Gain Error (at ±5° tilt) | <±2% reading |
| uₓ/uᵧ Precision (RMS) | 1 mm/s |
| u_z Precision (RMS) | 0.5 mm/s |
| Wind Direction Precision (1 m/s wind) | 0.06° |
| Ultrasonic Temperature Precision | 0.0025 °C |
| Total Mass | 6 kg |
| Warranty | 3 years from factory shipment or 17,500 operational hours, whichever occurs first |
| Brand | Campbell Scientific |
|---|---|
| Model | CPEC310 |
| Origin | USA |
| System Type | Closed-path eddy covariance flux measurement system |
| Power Consumption | 12 W @ 25°C |
| Operating Temperature | −30 to +50°C |
| Operating Pressure Range | 70–106 kPa (expandable) |
| Measurement Frequency | 60 Hz |
| Output Rates | 5, 10, 12.5, or 20 Hz |
| Data Interfaces | SDM, RS-485, USB, analog (CO₂/H₂O only) |
| Total Mass | 15.36 kg |
| Warranty | 1 year from shipment |
| Gas Analyzer Sample Cell Volume | 5.9 mL |
| Cutoff Frequency | 4.3 Hz |
| CO₂ Accuracy | ±1% of reading |
| H₂O Accuracy | ±2% of reading |
| CO₂ Precision (RMS) | ≤0.15 µmol/mol |
| H₂O Precision (RMS) | ≤0.006 mmol/mol |
| CO₂ Zero Drift | ±0.3 µmol/mol/°C |
| H₂O Zero Drift | ±0.05 mmol/mol/°C |
| CO₂ Gain Drift | ±0.1% reading/°C |
| H₂O Gain Drift | ±0.3% reading/°C |
| Cross-sensitivity | CO₂ → H₂O: ±1.1×10⁻⁴ mol CO₂/mol H₂O |
| H₂O → CO₂ | ±0.1 mol H₂O/mol CO₂ |
| CSAT3A Path Lengths | Vertical 10.0 cm, Horizontal 5.8 cm |
| Wind Speed Range | uₓ/uᵧ ±65 m/s, u_z ±8 m/s |
| Wind Direction Range | 2.5°–357.5° (0–360° customizable) |
| Sonic Temperature Range | −50 to +60°C |
| Sonic Temperature Precision | 0.0025°C RMS |
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