LI200X-L

LI-COR Silicon Pyranometer

The LI200X Silicon Pyranometer is calibrated against an Eppley precision spectral pyranometer (PSP) to accurately measure sun-plus-sky radiation. The LI200X is used extensively in solar, agricultural, and meteorological applications. The LI200X should not be used under vegetation or artificial lights because it is calibrated for the daylight spectrum (400 to 1100 nm).


Features

  • Measures sun-plus-sky radiation
  • Measurement waveband: 400 to 1100 nm
  • Uses a silicon photovoltaic detector
  • Should not be used under vegetation or artificial lights
  • Manufactured by LI-COR
  • Mounts to a tripod mast, tower leg, or crossarm via the LI2003S leveling base and CM225 solar radiation mount

Specifications

  • Light Spectrum Waveband: 400 to 1100 nm
  • Accuracy: Absolute error in natural daylight is ±5% maximum; ±3% typical
  • Sensitivity: 0.2 kW m-2 mV-1
  • Linearity: Maximum deviation of 1% up to 3000 W m-2
  • Shunt Resistor: Adjustable, 40.2 to 90.2 ohm, factory set to the above sensitivity
  • Stability: <±2% change over a 1 year period
  • Response Time: 10 μs
  • Temperature Dependence: 0.15% per °C maximum
  • Cosine Correction: Cosine corrected up to 80° angle of incidence
  • Detector: High stability silicon photovoltaic detector (blue enhanced)
  • Sensor Housing: Weatherproof anodized aluminum case with acrylic diffuser and stainless steel hardware