Four-component measurement of net radiation with black-body pyranometers and pyrgeometers
Features:
24-bit A to D converter
Digital SDI-12 Output
Separate measurements of each of the four components
Heated Sensors minimise errors caused by dew, frost, rain, or snow
Compact and Light Weight
Use with the AM-500 mounting bracket to facilitate precision leveling.
Comparable in accuracy to other four-component net radiometers, but lower cost.
Four year warranty
Typical Applications Net radiation is a key variable in the surface energy balance and influences turbulent fluxes, including evapotranspiration. Applications include measurements on flux towers and weather stations.
Key Specifications:
Input Voltage:
5 -16 V DC (heaters are optimized to run at 12 V DC)
Current Draw (12V):
Heaters on, communication enabled: 63 mA; Heaters off, communication enabled: 1.5 mA; Heaters off, communication disabled: 0.6 mA
Response Time (SDI-12):
1 s
Operating Environment:
-50 to 80 C; 0 to 100 %
Dimensions:
116 mm length, 45 mm width, 66 mm height
Cable
M8 connector (IP67 rating) to interface to sensor housing; 5 m
Pyrgeometer Specifications
Sensitivity
0.12 mV per W m-2 (typical)
Calibration Uncertainty
± 5 %
Output Range
-24 to 24 mV
Measurement Repeatability
Less than 1 %
Field of View
150°
Spectral Range
5 to 30 µm (50 % points)
Temperature Sensor
30 kΩ thermistor, ± 1 C tolerance at 25 C; 0 to 2500 mV typical output
Pyranometer Specifications
Sensitivity
0.057 mV per W m-2 (upward-looking); 0.15 mV per W m-2 (downward-looking); (typical)
Calibration Uncertainty
± 5 %
Output Range
0 to 114 mV (upward-looking; 0 to 300 mV (downward-looking)
Measurement Range
0 to 2000 W m-2 (net shortwave irradiance)
Measurement Repeatability
Less than 1 %
Field of View
180° (upward-looking); 150 ° (downward-looking)
Spectral Range
385 nm to 2105 nm (upward-looking); 295 nm to 2685 nm (downward-looking); (50 % points)
