SGR4 Pyrgeometer from Kipp and Zonen
The SGR4 pyrgeometer is the highest quality pyrgeometer available. It is designed to measure downward longwave radiation. It has a RS-485 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.
|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|