SGR3 Pyrgeometer – Kipp & Zonen
SGR3 Pyrgeometer – Kipp & Zonen
The SGR3 is a pyrgeometer, designed for meteorological measurements of downward atmospheric long wave radiation. The SGR3 uses a specially designed silicon window. On the inside a solar-blind filter blocks solar radiation. The SGR3 data represents the radiation exchange within the whole hemisphere. This is because the reference SGR3 is calibrated outdoors with respect to a reference CGR4, which has a 180 degrees field of view.
The SGR3 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 SGR3 is extremely robust and comes with 5 years warranty (*).
The base of the instruments contains the mounting holes, a spirit level and levelling feet for exact levelling. For ease of mounting, exchange and recalibration the instruments have a waterproof connector. The improved temperature dependency and directional response make these instruments the ideal choice for meteorological and agricultural applications.
Thanks to standardized output and connections of every SGR3, exchanging instruments for recalibration is easy.
SmartExplorer Windows™ software for data logging, display of data and Modbus® address setting is provided as standard.
SGR3 Pyrgeometer – Kipp & Zonen
Two SGR 3s can form a net pyrgeometer
Specifications
| Spectral range (overall) | 4.4 to 50 µm = 4400 to 50000 nm |
| Response time (95%) | < 18 s |
| Window heating offset | < 15 W/m² |
| Zero offset B | < 5 W/m² |
| Temperature dependence of sensitivity (-10 ºC to +40 ºC) | < 3 % |
| Operational temperature range | -40 to +80 °C |
| Field of view | 150 ° |
| Non-linearity | < 1 % |
| Analogue output (-A / -V version) | 4 to 20 mA / 0 to 1 V |
| Digital output | 2-wire RS-485 |
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