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240-LI-200R Pyranometer

240-LI-200R Pyranometer
240-LI-200R Pyranometer
240-LI-200R Pyranometer
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The 240-LI-200R Pyranometer is meant to be used outdoors under unobstructed natural daylight conditions. It measures global solar radiation (the combination of direct and diffuse solar radiation) in the 400 to 1100 nm range.
Product Details

The 240-LI-200R Pyranometer is meant to be used outdoors under unobstructed natural daylight conditions. It measures global solar radiation (the combination of direct and diffuse solar radiation) in the 400 to 1100 nm range. Measurement units are in watts per square meter.

Ideal for agricultural, meteorological, solar energy, and environmental research, the LI-200R is available with a variety of cable lengths and compatibility with most data loggers.

Specifications

  • Absolute Calibration: Calibrated against an Eppley Precision Spectral Pyranometer (PSP) under natural daylight conditions. Calibration uncertainty under these conditions is estimated as ± 3% typical, within ± 60° angle of incidence.*
  • Sensitivity: Typically 75 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
  • Operating Temperature Range: −40 °C to 65 °C
  • Relative Humidity Range: 0% to 95% RH, Non-Condensing
  • 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')

*Preliminary specification

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