Kipp & Zonen SGR4 Pyrgeometer 地面輻射計
SGR4具備Modbus®界面,放大的模擬輸出。長波淨輻射和下行輻射可直接透過Modbus®取得。 5至30 VDC的寬範圍和低電源範圍使得在氣象站和太陽能站的整合變得容易。藉由結合SGR4與CVF4通風裝置,可延長圓頂清潔的間隔,並使測量品質最佳化。SGR4的內部乾燥劑至少可使用10年。

- The best scientific pyrgeometer currently available
- Low temperature dependence of sensitivity
- Very low window heating
- Calculated LW downward radiation output
- RS-485 Modbus® communication
- No change of desiccant for 10 years
- 5 year warranty
SGR4 pyrgeometer is an instrument for the highest quality scientific measurements. The specially designed meniscus dome provides a 180º field of view with negligible directional response error. A hard-carbon coating on the outside of the dome smoothes the spectral response and provides extra protection to the silicon surface. The excellent thermal stability of the dome construction and coupling to the instrument body eliminates the need for dome temperature measurements or dome shading. SGR4 can be fitted with the CVF4 ventilation unit to further improve its performance.
The SGR4 has an internal desiccant that will last for at least 10 years. This minimizes maintenance significantly.
The interval for dome cleaning can be extended, and the quality of measurements maximized, by fitting SGR4 with the CVF4 ventilation unit.
The SGR4 has Modbus® interface, amplified analogue output, improved response time and temperature corrected measurement data. The long-wave net- and downward radiation are directly available over Modbus®. The wide and low power supply range from 5 to 30 VDC makes integration in meteorological and solar energy stations easy. The SGR4 is extremely robust and comes with 5 years warranty (*).
Thanks to standardized output and connections of every SGR4, exchanging instruments for recalibration is easy. 
SmartExplorer Windows™ software for data logging, display of data and Modbus® address setting is provided as standard.
Spectral range (overall) 4.4 to 50 µm = 4400 to 50000 nm
Response time (95%) 18 s
Window heating offset < 4 W/m²
Zero offset B < 2 W/m²
Temperature dependence of sensitivity (-20 ºC to +50 ºC) < 1 %
Operational temperature range -40 to +80 °C
Field of view 180 °
Non-linearity < 1 %
Analogue output (-A / -V version) 4 to 20 mA / 0 to 1 V
Digital output 2-wire RS-485
About Kipp & Zonen  
Kipp & Zonen provides class-leading instruments for measuring solar radiation and atmospheric properties in Meteorology, Climatology, Hydrology, Industry, Renewable Energy, Agriculture and Public Health.
Kipp & Zonen is the specialist in the measurement of solar and sky radiation, from the ultraviolet to the far infrared. We offer a complete range of high quality instrumentation and accessories, from reliable cost-effective products to the best performance available. Our pyranometers, for example, are used in meteorological networks around the world.
Furthermore, our expertise and close links with the scientific community have led to high-end solutions for the measurement of atmospheric properties such as stratospheric Ozone, UV Spectra and evapotranspiration.
Kipp&Zonen針對氣象,氣候,水文學,工業,再生能源,農業以及公共衛生領域提供測量太陽能輻射和大氣屬性之專業儀器。 Kipp&Zonen是測量太陽能和天空輻射(從紫外線到遠紅外線)的專家,我們提供完整的高品質儀器和配件。以Kipp&Zonen的總輻射表為例,它被運用於全球各地的氣象網路之中。 此外,我們的專業以及與科學界的緊密聯繫讓我們逐步開發出用於測量平流層臭氧,紫外線光譜和蒸發散等大氣屬性的高階解決方案。