Specifications
CO2 Measurements
Calibration Range: 0 to 3000 µmol mol-1
Accuracy: Within 1% of reading
Zero Drift (per °C):
±0.1 ppm typical
±0.3 ppm maximum
RMS Noise (typical @ 370 ppm CO2):
@5 Hz: 0.08 ppm
@10 Hz: 0.11 ppm
@20 Hz: 0.16 ppm
Gain Drift (% of reading per °C @ 370 ppm):
±0.02% typical
±0.1% maximum
Direct Sensitivity to H2O (mol CO2 mol-1 H2O):
±2.00E-05 typical
±4.00E-05 maximum
H2O Measurements
Calibration Range: 0 to 60 mmol mol-1
Accuracy: Within 1% of reading
Zero Drift (per °C):
±0.03 mmol mol-1 typical
±0.05 mmol mol-1 maximum
RMS Noise (typical @ 10 mmol mol-1 H2O):
@5 Hz: 0.0034 mmol mol-1
@10 Hz: 0.0047 mmol mol-1
@20 Hz: 0.0067 mmol mol-1
Gain Drift (% of reading per °C @ 20 mmol mol-1):
±0.15% typical
±0.30% maximum
Direct Sensitivity to CO2 (mol H2O mol-1 CO2):
±0.02 typical
±0.05 maximum
General
Fundamental Gas Sampling Rate: 150 Hz
Bandwidth: 5, 10, or 20 Hz; software selectable
Type: Absolute, open-path, non-dispersive spectroscopy
Detector: Thermoelectrically cooled lead selenide
Path Length: 12.5 cm (4.92")
Air Temperature Thermistor
Accuracy: ±0.3 °C
Range: -20 to 70 °C
Resolution: 0.003 °C @ 25 °C
Signal Noise: 0.002 °C RMS at 25 °C and 20 Hz
Pressure Sensor
Accuracy: 0.4 kPa
Range: 50 to 110 kPa
Resolution: 0.006 kPa
Outputs: Ethernet
Operating Temperature Range: -25 to 50 °C (-40 to 50 °C verification on request)
Relative Humidity Range: 0-95% (non-condensing)
Weatherproof Rating: Tested to IEC IP65 standard
Power Consumption:
4 W steady state @ 25 °C
8 W maximum over operating temperature range
15 W maximum during warm-up (up to 4 minutes)
Input Voltage: 8 to 34 VDC
Head:
Size: Diameter 6.5 cm, Length 30 cm.
Weight: 0.67 kg; 1.3 kg with mounting post.
Head Cable Length: 200 cm
DSI Box:
Size: 13.24 × 14.64 × 6.24 cm (H × W × D)
Weight: 0.93 kg
Gas analyzer head dimensions
DSI box dimensions
SmartFlux 3 System
Data Inputs: Three RS-232/422/485 serial ports
Network Communication: Ethernet (TCP/IP)
Data Storage: USB port for 16 GB industrial grade flash drive
Operating Temperature Range: -25 to 50 °C (-40 to 50 °C verification on request)
GPS Antenna Operating Temperature Range: -30 °C to 80 °C
Relative Humidity Range: 0 to 95% (non-condensing)
Input Voltage: 10 to 30 VDC
Power Consumption: 1.5 watts typical (3.5 watts maximum; excluding pass-through power)
Max Current Passed Through to the Anemometer: 2 A
Dimensions with DIN Clip: 149 x 100 x 37 mm (L×W×H)
Weight with GPS Antenna: 1.32 lb. (0.59 kg)
GPS Antenna Diameter: 61 mm (2.4 in.)
GPS Cable Length: 5 m
GPS Accuracy:
GPS Standard Positioning Service: <15 m; 95% typical
WAAS: <3 m; 95% typical
Specifications are subject to change without notice.