Measurement and Control Products for WEATHER Measurement and Control Products for WATER Measurement and Control Products for ENERGY Measurement and Control Products for MACHINES Measurement and Control Products for STRUCTURES Measurement and Control Products for EARTH
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The CHP1-L is a pyrheliometer used for unattended direct solar-radiation measurement. It is designed specifically to measure the direct beam solar irradiance with a field of view limited to 5 degrees. This is achieved by the shape of the collimation tube, by precision apertures, and by the detector design.

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