LI-COR LI-200R Solar Radiation Sensors
Features
- Weather resistant and durable in long-term outdoor deployments
- Cosine corrected to 82° incident angles for accurate measurements
- Detachable sensor simplifies installation and removal of sensor
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
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Overview
The LI-COR LI‑200R measures total solar radiation with an unfiltered silicon photodiode. Although the LI‑200R does not measure the total solar spectrum, its measurements correspond closely to first-class thermopiles under outdoor conditions.
Mechanics
The crown of the sensor rapidly sheds water, reducing pooling around the sensor. It also physically blocks light that is outside the hemisphere of sensitivity, providing a precise cosine response.
Applications
Ideal for agricultural, meteorological, solar energy, and environmental research, it is available with a variety of cable lengths and output signals for compatibility with most data loggers.
- Absolute Calibration: Calibrated against an Eppley Precision Spectral Pyranometer (PSP) under natural daylight conditions. Absolute uncertainty under these conditions is ±3% typical; ±5% maximum.
- Sensitivity: Typically 90 μA per 1,000 W m-2
- Linearity: Maximum deviation of 1% up to 3,000 W m-2
- Response Time: Less than 1μs (2 m cable terminated into a 147 Ohm load)
- Temperature Dependence: ± 0.15% per °C maximum
- Cosine Correction: Cosine corrected up to 82° angle of incidence
- Azimuth: < ± 1% error over 360° at 45° elevation
- Tilt: No error induced from orientation
- Detector: High stability silicon photovoltaic detector (blue enhanced)
- Sensor Housing: Weatherproof anodized aluminum body with acrylic diffuser and stainless steel hardware; O-ring seal on the sensor base
- Size: 2.36 cm diameter × 3.63 cm (0.93” × 1.43”)
- Weight: 24 g head; 60 g base and cable (2 m) with screws
- Cable Length: 2 m, 5 m, 15 m, 50 m (6.5’, 16.4’, 49.2’, 164’)
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