CMP3 Pyranometer ISO 9060 spectrally flat Class C

The CMP3 pyranometer is an instrument for measuring the solar irradiance. The thermopile sensor construction measures the solar energy that is received from the total solar spectrum and the whole hemisphere (180 degrees field of view). The output is expressed in Watts per meter square. The CMP3 pyranometer is designed for continuous indoor and outdoor use.

CMP3 Features:

  • ISO 9060 spectrally flat Class C performance
  • Budget price
  • 5-year warranty
  • Thermopile sensor
  • Internal desiccant (doesn’t need changing for 10 years)


CMP3 Pyranometer

The CMP3 pyranometer from Kipp and Zonen is an entry-level thermopile pyranometer. Despite its budget price, the CMP3 is able to deliver Class C levels of accuracy. Based on a similar design to the commercial-grade CMP10/11s the CMP3 utilises high-grade technology. It is ideal for routine studies and observations both indoors and outdoors.

The 180 ° field of view delivered by the quartz dome ensures the ideal performance of measuring GHI. No power is required for the CMP3 pyranometer, instead, an output of 0-20 mV is produced in relation to the solar irradiance received.

CMP3 Pyranometer Specifications

Spectral range (50% points) 300 to 2800 nm
Sensitivity 5 to 20 µV/W/m²
Response time 18 s
Zero offset A < 15 W/m²
Zero offset B < 5 W/m²
Directional response (up to 80° with 1000 W/m² beam) < 20 W/m²
Temperature dependence of sensitivity (-10 ºC to +40 ºC) < 5 %
Operational temperature range -40 °C to +80 °C
Maximum solar irradiance 2000 W/m²
Field of view 180 °

CMP3 Pyranometer Accessories

  • AMPBOX – Boosts the pyranometers output signal
  • Ventilation unit – Maintains the pyranometer temperature. Prevents dew, dust, frost, and snow build up.
  • Mounting plate (unventilated) – One or two (albedometer) pyranometers can be mounted.
  • Mounting plate (ventilated) – One or two (albedometer) pyranometers with ventilation units can be mounted
  • Mounting brackets – For fixing the mounting plate to the appropriate wall or pole.
  • Shadow Ring – Blocks direct radiation
  • Adjustable tilt kit – Allows precise alignment of the pyranometer’s angle. Ideal for Plane of Array studies.
  • Cable lengths – Various cable lengths available 10, 25, 50 and 100m.

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