LI190R Quantum (PAR) Sensor


Solar Radiation

The LI190R, manufactured by LI-COR, is a quantum sensor that accurately monitors Photosynthetic Photon Flux Density (PPFD) in both natural and artificial light. It has a voltage output and is ideal for growth chambers and greenhouses.

The LI190R measures solar radiation with a silicon photovoltaic detector mounted in a cosine-corrected head. A shunt resistor in the sensor’s cable converts the signal from microamps to millivolts, allowing the LI190R to be measured directly by a Campbell Scientific datalogger.

Features:

  • Calibration: ±5% traceable to the U.S. National Institute of Standards Technology (NIST)
  • Sensitivity: Typically 5 to 10 μA per 1000 μmoles s-1 m-2
  • Response Time: < 1 μs
  • Cosine Correction: Cosine corrected up to 82° angle of incidence
  • Detector: High stability silicon photovoltaic detector (blue enhanced)
  • Sensor Housing: Weatherproof anodized aluminum case with acrylic diffuser and stainless-steel hardware
  • Requires LI200S leveling base

 

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LI190R Specifications


File Size 1.08MB   Filename b_li190r-.pdf   Download

Related Pages



Photosynthetically Active Light (PAR)


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