Envco – Environmental Equipment

CMA albedometers are suitable for measuring global radiation and/or albedo over many differing types of surface. The upper pyranometer measure incoming global solar radiation and the lower sensor measures solar radiation reflected from the surface below.

From the two measurements the albedo can be simply calculated. All albedometers are supplied with a calibration certificate traceable to the World Radiation Centre.

CMA 6 complies with the second highest level, First Class. CMA 6 is constructed around two CMP 6 pyranometer sensors. Both sensors are contained in a single housing and have matched sensitivities. The CMA albedometers are significantly lighter than the previous models due to the completely new design and mounting rod. The reduced weight is important in portable applications such as measurements over snow and ice fields for investigation of global warming effects.

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 signal cable has a waterproof connector for ease of installation.

All albedometers are supplied with a calibration certificate traceable to the World Radiation Centre.

Product Specification

Spectral range 310 to 2800 nm
Sensitivity 7 to 14 µV/W/m²
Response time < 18 s
Zero offset A < 10 W/m²
Zero offset B < 5 W/m²
Directional error < 20 %
Temperature dependence of sensitivity (-10 ºC to +40 ºC) < 4 %
Operating temperature -40 to +80 °C
Maximum solar irradiance 4000 W/m²
Field of view 180 °

Ordering Information:
203007 - CMA6 Albedometer