ISO 9060:2018 Class A pyranometers for high-precision solar radiation measurement in meteorological, photovoltaic, and climate research applications. Features thermopile technology with <1% uncertainty and 5 µV/W/m² sensitivity. Compliant with BSRN, CMP, and WMO standards for baseline surface radiation network monitoring. Ideal for solar farm efficiency analysis, weather stations, and environmental research.
Gold Standard in Solar Radiation Measurement
LSI Lastem Class A pyranometers deliver research-grade accuracy for critical solar monitoring applications. Utilizing a thermopile sensor with black-coated precision detectors, these instruments measure broadband global horizontal irradiance (GHI) from 300 to 2800 nm. The double-glass dome design minimizes thermal offset while maintaining ISO 9060:2018 spectrally flat Class A specifications. Essential for scientific studies tracking climate change impacts on solar resources.
Mission-Critical Applications
Photovoltaic: Monitor PV plant performance ratio and detect efficiency losses. Meteorology: Provide primary data for weather forecasting models. Climate research: Contribute to long-term solar radiation databases like BSRN. Agriculture: Optimize irrigation based on crop-specific solar exposure. Building efficiency: Validate daylight harvesting system performance in green architecture.
Technical Superiority
- Near-zero thermal offset (＜±2 W/m²) with patented temperature compensation
- Optical quartz domes with solarization-resistant coating
- Integrated spirit level and leveling base for precise 0°-5° tilt adjustment
- Heater option for frost/snow removal in arctic installations
Calibration & Maintenance Protocol
Mount using supplied leveling plate with unobstructed sky view. Clean domes weekly with isopropyl alcohol and lint-free wipes. Perform daily cosine response verification. Recalibrate every 2 years at WRC or PMOD reference facilities. Maintain calibration certificates traceable to World Radiometric Reference (WRR). Store desiccants in dry cartridge and replace quarterly.
| Parameter | Specification |
|---|---|
| ISO Classification | Class A (Secondary Standard) |
| Spectral Range | 300 to 2800 nm |
| Response Time (95%) | ＜5 seconds |
| Non-linearity | ＜±0.2% (0-2000 W/m²) |
| Zero Offset A | ＜±3 W/m² (200 W/m² net thermal radiation) |
| Zero Offset B | ＜±2 W/m² (5 K/h temperature change) |
| Directional Response | ＜±10 W/m² (1000 W/m² beam at 80° zenith) |
| Sensitivity | 5-15 µV/W/m² (typical) |
| Operating Range | -40°C to +80°C |
| Brand | LSI-Lastem |
