Handy instrument for direct and instantaneous determination of net radiation difference between incident and reflected radiation in short- and long-wave radiation range.
* "First class" according to WMO and ISO 9060 |
* world-wide market-leader |
* independent from ambient temperature |
* all-season measurements |
The measuring principle of the netradiometer is the measurement of the temperature difference between blackened receiver plates facing up and blackened receiver plates facing down by means of thermocouple elements.
Both of the receiver plates are electrically cross-connected, thus, a direct determination of net radiation is possible.
The netradiometer is supplied with a spirit level for accurate horizontally levelling.
All instruments are supplied with a calabration certificate.
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| Measuring range: | 0 ... 1500 Wm-2 |
| Spectral sensivity: | 0.3 ... 100 µm |
| Output: | about 15 µV/Wm-2 |
| lmpedance: | about 5 Ohm |
| Ambient temperature: | - 40°C ... + 60°C |
| Resolution: | < 1 Wm-2 |
| Stability: | < 3 % per year (temporary operation) |
| Cosine response: | < 5 % of the value, zenith angle 0° ... 80° |
| Azimuth response: | < 5 % of the value |
| Temperature effect: | < 2 % of the value between - 20°C ... + 40°C |
| Linearity: | < 2 % in the range 0.5 ... 1330 Wm-2 |
| Response time: | < 25 sec. (95%), < 45 sec. (99%) |
| Weight: | 0.35 kg |
| Cable: | 2 - polar shielded, 3 m length |
| Order code: | 8110: B1811000 8110: B18110010 with 10m cable |