The SNiP-SR5 is a preconfigured 'Sensor Node Integrated Package' for LoRaWAN communication of real-time measurements of solar radiation, for continuous environmental monitoring.
The SNiP-SR5 integrates 1x AD-NODE and 1x SP-510 Upward-Looking Thermopile Pyranometer Sensor to a site’s unique network, communication and power requirements.
The SP-510 thermopile pyranometer is designed for accurate and stable global shortwave radiation measurement and reflectance. The upward-looking model is cosine-corrected, with directional errors less than 20 W m2 at 80° solar zenith angle. Long-term non-stability, determined from multiple replicate pyranometers in accelerated aging tests and field conditions, is less than 2% per year. The SP-510 combines a blackbody thermopile detector and acrylic diffuser, and is a significant improvement when compared to the spectral response of silicon-cell pyranometers, but keeps the price close to that of silicon-cell pyranometers.
See Further Specifications on the AD-NODE
See Further Specifications on the SP-510 Thermopile Pyranometer (Upward Looking)
Further parameters can be added to the SNiP without requiring loggers to match each distinct sensor, substantially reducing the cost of getting a fuller picture on the application.
The AD-NODE is designed for those requiring precision in their analogue and digital measurements. With a 24-bit ADC, the AD-NODE supports two RTDs, a 0–10V with compressing range and a 4–20mA input. Each of the four dry-contact digital inputs is capable of simultaneously sampling at 1 kHz, with periodic reporting. Settings on the device can be altered remotely via LoRaWAN™ or locally via USB.
Sensitivity (variable from sensor to sensor, typical values listed) | 0.057 mV per W m-2 |
Calibration Factor (reciprocal of sensitivity) (variable from sensor to sensor, typical values listed) |
17.5 W m-2 per mV |
Calibration Uncertainty | ±5% |
Output Range | 0 to 114 mV |
Measurement Range | 0 to 2000 W m-2 (net shortwave irradiance) |
Measurement Repeatability | Less than 1% |
Long-Term Drift | Less than 2% per year |
Non-Linearity | Less than 1% |
Detector Response Time | 0.5s |
Field of View | 180° |
Spectral Range (50% points) |
385nm to 2105nm |
Directional (Cosine) Response | Less than 20 W m-2 at 80° solar zenith |
Temperature Response | Less than 0.1% °C-1 |
Zero Offset A | Less than 5 W m-2; Less than 10 W m-2 (heated) |
Zero Offset B | Less than 5 W m-2 |
Uncertainty in Daily Total | Less than 5% |
Dimensions | 28.7mm height, 23.5mm diameter |
Mass | 90g |
Warranty | 4 years against defects in materials and workmanship |