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SN-500 Four Component Net Radiation Sensor
SN-500 Four Component Net Radiation Sensor
Product details
The SN-500 four component net radiation sensor consists of two longwave radiation sensors facing up and down, and two shortwave radiation sensors facing up and down, providing measurements of solar and surface input-output radiation. The SN-500 has scientific grade precision, SDI-12 output, and a compact appearance. The SN-500 sensor integrated into the ZL6 system by METER is easier to install and can be managed in the cloud for near real-time data acquisition.
As shown in the left figure, net radiation is the sum of net shortwave radiation and net longwave radiation. Net shortwave radiation is the difference between incident shortwave radiation (from the sun) and outgoing shortwave radiation (reflected from the ground). Net longwave radiation is the difference between incident longwave radiation (emitted by molecules in the atmosphere) and outgoing longwave radiation (emitted by elements on the Earth's surface). The typical flux over grassland in clear summer and radiation over snow in winter are shown in the figure. The typical summer noon flux is+650 W m ⁻ ², and in winter it is 0 W m ⁻ ².
main features
Connect ZL6 data acquisition, plug and play, automatic recognition, and connect to ZENTRA Cloud to achieve remote data access for cloud management
● Comes with an installation rod for easy installation and precise leveling
Various parameters can be easily calculated using the four component data measured by sensors, such as net radiation, net longwave radiation, net shortwave radiation, albedo, total irradiance, etc
● Sturdy appearance, suitable for long-term deployment in the wild, with a long service life
Accurate measurement, high cost-effectiveness among scientific grade sensors
TECHNICAL INDEX
output |
SDI-12 |
response time |
1 s |
work environment |
-50 ~ 80 ℃; 0 ~ 100 % RH |
size |
Length 116 mm, width 45 mm, height 66 mm |
weight |
320 g (including installation rod and 5-meter wire) |
cable |
Connect the sensor housing with an M8 interface (IP68 rating); 5-meter four core shielded twisted pair cable with TPR sheath; ZL6 stereo interface |
Support data collection (must be purchased separately) |
METER EM60 series, ZL6 series, ZSC and ProCheck |
PYRGEOMETERLong wave radiation sensor
accuracy |
± 5 % |
measuring range |
-200 ~ 200 W m-2(Net longwave radiation) |
accuracy |
< 1 % |
Long-term Drift |
Sensitivity change<2% per year |
Nonlinearity |
< 1 % |
response time |
< 0.5 s |
Viewing Angle |
150° |
spectral range |
5 ~ 30 µm |
Temperature response |
< 5 % @ -15 ~ 45 ℃ |
Window heating compensation |
< 10 W m-2 |
Zero point compensation B |
< 5 W m-2 |
Tilt error |
< 0.5 % |
PYRANOMETERShortwave radiation sensor
accuracy |
± 5 % |
measuring range |
0 ~ 2000 W m-2(Net shortwave radiation) |
accuracy |
< 1 % |
Long-term Drift |
<2% per year |
Nonlinearity |
< 1 % |
Detector response time |
0.5 s |
Viewing Angle |
Up 180 °; Down 150 degrees |
wavelength range |
Up 385 nm to 2105 nm, down 295 nm to 2685 nm; (50 % points) |
Direction (cosine) response |
Upward<30 W m-2 @ zenith angle 80 °; Down<20% @ 0~60 ° |
Temperature response |
< 5 % @ -15 ~ 45 ℃ |
Zero point compensation A |
< 5 W m-2; < 10 W m-2(heated) |
Zero point compensation B |
< 5 W m-2 |
Origin and Manufacturer:AmericaMETERcompany
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