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Cambridge Building Energy & Environment Portal



LP02 measures the solar radiation received by a plane surface from a 180o field of view angle. This quantity, expressed in W/m2 , is called “hemispherical” solar radiation. LP02 pyranometer can be employed outdoors under the sun, as well as indoors with lamp-based solar simulators. Its orientation depends on the application and may be horizontal, tilted (for plane of array radiation) or inverted (for reflected radiation). Using LP02 is easy. The pyranometer can be connected directly to commonly used data logging systems. The irradiance in W/m2 is calculated by dividing the LP02 output, a small voltage, by the sensitivity. This sensitivity is provided with LP02 on its calibration certificate.


  • No:2
  • Measurement: hemispherical solar radiation
  • Range: 285 to 3000×10-9m
  • Sensitivity: 15×10-6V/(W/m2)
  • Temperature response: <3%


Manual: LP02 user manual; certificate of calibration of 45110; certificate of calibration of 45109