CMA11

The 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.

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Key features

ISO 9060:1990 Secondary Standard albedometer
Constructed around two CMP11 pyranometers
5 year warranty (*)

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.

(*) This product will need to be registered by the end-user within 6 months of purchase to activate the 5 year warranty.

Technical specification

Spectral range	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
Directional error (up to 80° with 1000 W/m² beam)	< 10 W/m²
Temperature dependence of sensitivity (-10 °C to +40 °C)	< 1 %
Operating temperature range	-40 to +80 °C
Maximum solar irradiance	4000 W/m²
Field of view	180 °