CMA11 Albedometer



  • ISO 9060:1990 Secondary Standard Albedometer
  • Based on two CMP 11 pyranometers

CMA11 complies with the highest level of ISO 9060:1990 classification, Secondary Standard is recommended for scientific applications, for which accuracy needs to be according to the highest standards. The lightweight design makes CMA albedometers ideal for portable applications such as on snow and ice fields
The white sun shield prevents the body of the albedometer from heating up. The conical lower glare screen prevents direct illumination of the lower glass dome at sunrise and sunset.

A bubble level is fitted and a screw-in drying cartridge keeps the interior free from humidity. The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets.The signal cable has a waterproof connector for ease of installation. All albedometers are supplied with a calibration certificate traceable to the World Radiation Centre.

Spectral range (50% points) 285 to 2800 nm
Sensitivity 7 to 14 µV/W/m²
Response time < 5 s
Zero offset A < 7 W/m²
Zero offset B < 2 W/m²
Temperature dependence of sensitivity (-40 °C to +70 °C) < 10 %
Temperature dependence of sensitivity (-10 ºC to +40 ºC) < 1 %
Operational temperature range -40 to +80 °C
Maximum solar irradiance 4000 W/m²
Field of view 180 °