Specifications

CO₂ Measurement

• Calibration Range: 0 to 1500 µmol mol^-1
• Accuracy: Within 1.5% of reading
• Zero Drift (per °C): ±0.15 ppm typical, ±0.3 ppm maximum
• RMS Noise: @10 Hz: 1.0 ppm (typical @ 400 µmol mol^-1 CO₂)
• Direct Sensitivity to H₂O: ±2.00E-05 typical, ±4.00E-05 maximum

H₂O Measurement

• Calibration Range: 0 to 60 mmol mol^-1
• Accuracy: Within 1.5% of reading
• Zero Drift (per °C): ±0.03 mmol mol^-1 typical, ±0.05 mmol mol^-1 maximum
• RMS Noise: @10 Hz: 0.05 mmol mol^-1 (typical @ 10 mmol mol^-1 H₂O)
• Direct Sensitivity to CO₂: ±0.02 typical, ±0.05 maximum

Wind Measurement

• Measurement Axes: U, V, W
• Measurement Range: 0 – 30 m s^-1 (Horizontal Wind Conditions)
• Offset at Zero Wind: ±0.06 m s^-1
• RMS Noise: <0.1 m s^-1 @ 5 m s^-1, <0.15 m s^-1 @ 15 m s^-1
• Sonic Temperature Accuracy: ±0.2°C Maximum offset at 20°C