Smart Pyranometers, the more intelligent way to measure solar irradiance

Product catalog summary

Introduction
Solar radiation is a critical factor influencing Earth's climate, weather, and various industrial applications, including solar energy. Accurate measurement of solar irradiance is essential for understanding these processes.

Product Overview
Kipp & Zonen has developed the SMP series of smart pyranometers, building on the CMP Series. These instruments measure global irradiance from the sun and sky, covering wavelengths from 300 nm to 3000 nm. They meet ISO 9060:1990 and IEC 60904 standards and are traceable to the World Radiometric Reference.

Features and Specifications
The SMP series includes digital signal processing and interfaces optimized for industrial data acquisition. They feature Modbus® communication for integration with PLCs, inverters, and data loggers. The instruments offer both voltage (0 to 1 V) and current (4 to 20 mA) outputs, with low power consumption and a wide operating voltage range (5 to 30 VDC).

Interfacing and Compatibility
SMP pyranometers have a smart interface with RS-485 and Modbus® protocol, protected against short-circuits and reversed polarity. They are compatible with various data acquisition systems and industrial networks.

Models and Applications
The SMP3 and SMP11 models differ in size, construction, and performance. SMP3 is compact and suitable for solar energy installations and agriculture, while SMP11 offers higher performance for research and meteorological applications. Both models have built-in temperature compensation and are supplied with calibration certificates.

Technical Specifications
SMP11 is classified as a Secondary Standard pyranometer with a response time of less than 2 seconds and a spectral range of 285 to 2800 nm. SMP3 is a Second Class pyranometer with a response time of less than 12 seconds and a spectral range of 300 to 2800 nm. Both models operate in temperatures from -40 °C to +80 °C.

Conclusion
The SMP series pyranometers by Kipp & Zonen offer advanced features for precise solar irradiance measurement, suitable for a wide range of applications from industrial to research settings.

Catalog excerpts

Smart Pyranometers, the more intelligent way to measure solar irradiance-1

Smart Pyranometers THE MORE INTELLIGENT WAY TO MEASURE SOLAR IRRADIANCE Enhanced performance by digital signal processing RS-485 serial data interface with Modbus® protocol 0 to 1 V voltage output 4 to 20 mA current output Extremely low power

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Smart Pyranometers, the more intelligent way to measure solar irradiance-2

Introduction Solar radiation drives almost every dynamic process on the Earth’s surface and above, from ocean current circulation to the weather, and life itself. Precise long-term measurements of the radiation budget at the surface are fundamental to understanding the Earth’s climate system and weather forecasting, and are important in agriculture, hydrology and ecology. Accurate solar radiation data has also become crucial information in solar energy and other industrial applications. Kipp & Zonen has been manufacturing pyranometers for over 80 years. These instruments are designed for measuring...

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Smart Pyranometers, the more intelligent way to measure solar irradiance-3

Choice of pyranometer To achieve the required spectral and directional characteristics SMP Series pyranometers use thermopile detectors and glass domes. SMP3 and SMP11 both have built-in bubble levels and adjustable levelling feet. Snap-on sun shields reduce solar heating of the housings. The waterproof connectors have gold-plated contacts and are tted with 10 m of high quality signal cable as standard. SMP3 and SMP11 come in two versions; ‘-V’ with a 0 to 1 V analogue output, and ‘-A’ with 4 to 20 mA. Both versions have the Modbus® interface, very low power requirements and are supplied with...

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Second Class Secondary Standard Zero offsets (a) thermal radiation (200 W/m²) (b) temperature change (5 K/hr) Non-stability (change/year) Directional error (up to 80 ° with 1000 W/m² beam) Temperature dependence of sensitivity Analogue output Analogue output range Digital output Digital output maximum range Digital communication protocol Level accuracy Other specications Operating temperature Spectral range (50 % points) Supply voltage Expected daily uncertainty Calibration certicate traceable to WRR, multi-language instruction sheet, manual on CD-ROM Calibration certicate traceable to WRR, multi-language...

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