LI-200R Solar Total Radiation SensorDesigned for outdoor environments with unobstructed sunlight. Measure the total solar radiation, including direct and diffuse solar radiation, with a wavelength range of 400-1100nm. The measurement result is in W/m²The LI-200R has good compatibility, with multiple cable lengths to choose from, and is compatible with most digital devices.

working principle
The LI-200R uses unfiltered silicon photodiodes, and the measurement results are consistent with the first stage thermoelectric stack under unobstructed natural light conditions outdoors. The sensor head is exquisitely designed to quickly guide rainwater and obtain precise cosine response.

Application field

√ Micro meteorological research
√ Energy balance measurement
Optimization of photovoltaic system
√ Weather monitoring, etc

Main advantages

√ Can withstand various weather conditions and be securely placed outdoors for a long time
Designed specifically for measuring total solar radiation under unobstructed natural conditions
Ensure uniform sensitivity within the range of 82 ° incident angle
√ Detachable sensor head, easy to install and disassemble, convenient for maintenance and calibration

Technical Specifications
Absolute calibrationCalibration using Eppley Sunlight Intensity Meter (PSP) under natural sunlight, typical error: ± 3% (incident angle within 60 °)
sensitivityTypical 75 µ A/1000 W/m²
linearityThe maximum deviation is 1% (3000 W/m)²Within)
response time：<1µs
temperature-related：<0.15%/℃
Cosine correction: Incident angle within 82 °
Azimuth errorAt a 45 ° elevation angle, the error within a 360 ° azimuth range is less than 1%
Tilt error: Will not cause errors due to fixed orientation

working environment-40~65 ℃, 0~100% RH (non condensing)
detectorHigh stability silicon photovoltaic detector (blue light enhanced)
sensor housingAnodized aluminum waterproof shell with acrylic diffuser, stainless steel screws;
Sensor base with O-ring seal
size:2.36 Day. x 3.63 cm H
weightHead: 24g; 2-meter with screw base: 60g
Cable length：2 m, 5 m, 15 m, 50 m

optional

Origin and Manufacturer: United StatesLI-CORcompany