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SR20-D2 pyranometer

SR20-D2 pyranometer
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Thermal Sensors Digital secondary standard pyranometer with Modbus RTU and 4-20 mA output SR20-D2 is a solar radiation sensor of the highest category in the ISO 9060 classification system: secondary standard. SR20-D2 is designed for the solar PV industry, offering two types of commonly used irradiance outputs: digital via Modbus RTU over RS-485 and analogue 4-20 mA (current loop). Individually tested for temperature and directional response, SR20-D2 is the most accurate digital secondary standard pyranometer available. Figure 1 SR20-D2 digital secondary standard pyranometer Introduction SR20-D2 measures the solar radiation received by a plane surface, in W/m2, from a 180o field of view angle. It is employed where the highest measurement accuracy is required. SR20-D2 offers two types of outputs commonly used in the solar PV industry: digital via Modbus RTU over RS-485 and analogue 4-20 mA (current loop). These industry standards allow for easy data acquisition, easy read-out and error-free instrument exchange when using SR20-D2. The best pyranometer for the PV industry Figure 2 state-of-the-art electronics inside the SR20-D2 SR20-D2 is the most accurate digital secondary standard pyranometer available. Its benefits: • Digital output: easy implementation & servicing • Best-in-class temperature response <± 0.4 % (-30 to +50 °C), best “zero offset a” and best calibration uncertainty • Test certificates for temperature- and directional response included as required by ISO 9060 • Re-calibration registers fully accessible to users Copyright by Hukseflux. Version 2209. We reserve the right to change specifications without prior notice Page 1/4. For Hukseflux Thermal Sensors go to www.hukseflux.com or e-mail us: info@hu

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Thermal Sensors Best measurement accuracy In order to improve overall measurement accuracy, Hukseflux effectively targeted two major sources of measurement uncertainty: calibration and “zero offset a”. In addition, SR20-D2 has a negligible temperature response. All are best in class. The temperature response of every individual instrument is tested and corrected onboard by the instrument electronics, using a second degree polynomial. Applicable instrument classification standards are ISO 9060 and WMO-No. 8. Demanding applications SR20-D2’s low temperature dependence makes it the ideal...

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Thermal Sensors Hukseflux Sensor Manager software For communication between a PC and SR20-D2, the Hukseflux Sensor Manager software can be used. It allows the user to plot and export data, and change the SR20-D2 Modbus address and its communication settings. hemispherical solar radiation ISO classification secondary standard pyranometer Calibration uncertainty < 1.2 % (k = 2) Zero offset a 5 W/m2 unventilated 2.5 W/m2 ventilated Calibration traceability to WRR Calibration registers accessible to users Spectral range 285 to 3000 x 10-9 m Rated operating temperature -40 to +80 oC range...

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Thermal Sensors Nowadays, the best pyranometers are made by Hukseflux Thermal Sensors. This overview of features and benefits of SR20-D2 gives you some of the reasons SR20-D2 digital secondary standard pyranometer why! Whatever your application is, Hukseflux offers the highest accuracy in every class at the most attractive price level. Best measurement accuracy • lowest zero offsets • lowest calibration uncertainty • best temperature dependence Best connector • interchangeable cables • IP67 grade • for industrial use Best digital interface • industry standard output types • Modbus RTU over...

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