SMP22X
The SMP22x, with half the directional response error of any other pyranometer on the market, ensures uncompromised accuracy for solar PV monitoring and scientific research.
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Key features
- RS-485 Modbus® communication
- No change of desiccant for 10 years
- 5 year warranty (*)
The SMP22x is an ISO 9060:2018 Spectrally Flat Class A pyranometer that combines the new smart interface with quartz domes and sensor technology from the CMP22, which has a proven track record of decades, making it the most accurate and reliable pyranometer in the world.
The SMP22x has the widest spectral range, improved directional response, and reduced thermal offsets. Because of the highest optical quality domes, the directional error is reduced below 5 W/m2.
The SMP22x comes standard with RS-485 Modbus® interface and 5-year warranty. The SMP22x has an internal desiccant that will last for at least 10 years, which minimizes maintenance significantly. The interval for dome cleaning can be extended, and the quality of measurements maximized, by fitting SMP22x with the CVF4 ventilation unit. The SMP22x has a digital interface, amplified analogue output, improved response time and individual temperature corrected measurement data.
The SMP22x is supplied with individual measured cosine response data. The wide and low power supply range from 5 to 30 VDC makes integration in meteorological and solar energy stations easy.
The SMP22x is extremely robust and comes with 5 years warranty. Thanks to standardized output and connections of every SMP22, exchanging instruments for recalibration is easy.
SmartExplorer Windows™ software for data logging, display of data and Modbus® address setting is provided as standard.
Technical specification
| Spectral range (20% point) | 190 to 4000 nm |
| Spectral range (50% points) | 200 to 3600 nm |
| Response time (95%) | < 2 s |
| Zero offset A | < 3 W/m² |
| Zero offset B | < 1 W/m² |
| Directional response (up to 80° with 1000 W/m² beam) | < 5 W/m² |
| Temperature dependence of sensitivity (-20 ºC to +50 ºC) | < 0.3 % |
| Temperature dependence of sensitivity (-40 °C to +70 °C) | < 0.3 % |
| Analogue output (-A / -V version) | 4 to 20 mA / 0 to 1 V |
| Digital output | 2-wire RS-485 |
Related Documents
- SMP Series Instruction Sheet (pdf 3.1MB)
- Kipp & Zonen Pyranometers Brochure (pdf 2.64MB)
