Pyrgeometer SGR4
The Kipp&Zonen Pyregeometer SGR4A is a device that measures near-surface infra-red radiation spectrum in the wavelength spectrum approximately from 4.5 μm to 50 μm. It is the highest quality pyrgeometer currently available for scientific measurements. 5 year warranty
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 (optional) to further improve its performance. The ventilation unit also extend the interval for dome cleaning.
The SGR4 has an internal desiccant that will last for at least 10 years. This minimizes maintenance significantly.
Thanks to standardized output and connections of every SGR4, exchanging instruments for recalibration is easy. The SGR4 has Modbus interface and amplified analogue output. SmartExplorer Windows software for data logging, display of data and Modbus address setting is provided as standard. On Modbus are directly available the long-wave net- and downward radiation data.
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Spectral range (overall) |
4.4 to 50 µm = 4400 to 50000 nm |
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Response time (95%) |
18 s |
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Window heating offset |
< 4 W/m² |
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Zero offset B |
< 2 W/m² |
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Temperature dependence of sensitivity (-20 ºC to +50 ºC) |
< 1 % |
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Operating temperature |
-40 to +80 °C |
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Field of view |
180 ° |
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Non-linearity |
< 1 % |
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Power supply |
5 – 30 VDC |
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Analogue output (-A / -V version) |
4 to 20 mA / 0 to 1 V |
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Digital output |
2-wire RS-485 Modbus |
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Warranty |
5 years |
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Optional |
Ventilation unit CVF4 |
| Title | Description | Filename |
|---|---|---|
| Manual SGR4 | KippZonen_Manual_Smart_Pyrgeometers_SGR4.pdf |
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