Dual-pyranometer for determination of reflectivity of the ground surface (“albedo”) in percent and the short-wave net radiation.
* "First class" according to WMO and ISO 9060 |
* world-wide market-leader |
* independent from ambient temperature |
* all-season measurements |
The measuring principle of the dual-pyranometer is the measurement of the temperature difference between white and black painted sectors. By that means the measuring result is not affected from ambient temperature. Two precisely cut domes shield the sensing elements from environmental factors.
Two drying cartridges keep the interior free from humidity.
The dual-pyranometer is supplied with a spirit level.
All dual-pyranometers are supplied with a calibration certificate.
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| Measuring range: | 0 ... 1500 Wm-2 |
| Spectral sensivity: | 0.3 ... 3 µm |
| Output: | about 15 µV/Wm-2 or 4 ... 20 mA = 0 ... 1500 Wm-2 |
| lmpedance: | about 35 Ohm |
| Ambient temperature: | - 40°C ... + 60°C |
| Resolution: | < 1 Wm-2 |
| Stability: | < 1 % per year (temporary operation) |
| Cosine response: | < 3 % of the value, zenith angle 0° ... 80° |
| Azimuth response: | < 3 % of the value |
| Temperature effect: | < 1 % of the value between - 20°C ... + 40°C |
| Linearity: | < 0.5% in the range 0.5 ... 1330 Wm-2 |
| Response time: | < 25 sec. (95%), < 45 sec. (99%) |
| Weight: | 1.4 kg |
| Cable: | 4-polar shielded, 3 m length |
| Order code: | 8104: B1810400 |