CHP1 Pyrheliometer

  • ISO 9060 Spectrally Flat Class B
  • Excellent temperature dependence  
  • Excellent linearity  
  • Excellent long-term stability   
  • 5 year warranty 
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CHP1 Pyrheliometer

The CHP1 pyrheliometer is the most commonly used radiometer for the measurement of direct normal irradiance (DNI) and offers high accuracy and reliability. 

The instrument has a quartz window to cover the total solar spectrum of solar radiation between 200 to 4000 nm. 

CHP1 is has a high quality connector for easy installation and maintenance, the screw-in drying cartridge is easy to remove and replacement desiccant is supplied in convenient refill packs.  

Kipp & Zonen SOLYS sun trackers are supplied pre-fitted with the mountings for a CHP1.

As standard CHP1 comes fitted with both 10 kΩ thermistor and Pt-100 temperature sensors; so that the small temperature dependency of sensitivity can be corrected in post-processing using the supplied test data.

The CHP1 is the perfect choice for high accuracy direct solar irradiance measurements.

For instructions on the installation of the pyrheliometer on the SOLYS2 sun tracker please watch this video.

 

 

 

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Specifications

Spectral range (50% points) 200 to 4000 nm
Sensitivity 7 to 14 µV/W/m²
Response time < 5 s
Zero offset due to temperature change (5K/h) < 1 W/m²
Temperature dependence of sensitivity (-20 ºC to +50 ºC) < 0.5 %
Field of view 5 ±0.2 °
Operational temperature range -40 to +80 °C
Non-linearity < 0.2 %
Maximum solar irradiance 4000 W/m²
Classification to ISO 9060:2018 Spectrally Flat Class B

FAQ

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