PYRANOMETER SR20-D2
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PYRANOMETER SR20-D2 - 1

meteo control Energy & WeatherServices DESCRIPTION OF FUNCTIONS The SR20-D2 is suitable for use in any weather conditions and has superior temperature dependence. Furthermore it's specifications have been tested and are documented for every individual instrument (as required by ISO 9060). It is used both in climate and water sciences as well as meteorology. With this device, the entire irradiation can be measured. The pyranometer has both an RS485 Modbus interface, as well as an current interface (4 ... 20 mA), ensuring easy connection to any meteocontrol data logger. TECHNICAL DATA ISO 9060 classification: Power supply: Operating temperature: Protection class: Dimensions: Analog output (4 ... 20 mA) Measuring range: Power consumption (at 12 V DC): Bus interface (RS-485) Measuring range: Power consumption (at 12 V DC): Protocol: Output: Calibration registers: Calibration uncertainty: Spectral range: Response time (95 %): Zero offset a: Zero offset b: Stability deviation: Non-linearity: Directional error: Directional error of individual instrument: Temperature error: Temperature error of individual instrument: Inclination error: Achievable accuracy for daily sums: Secondary Standard 5,5 ... 30 V DC -40 ... 80 °C IP67 H: 85 mm (with dome) / 0 150 mm (enclosure) 0 ... 1,600 W/m2 < 115 mW 0 ... 4,000 W/m2 < 75 mW Modbus RTU Irradiance in W/mF Instrument body temperature in °C Accessible to users on request < 1.2 % (k = 2) 285 . 3,000 nm 3 s 5 W/m2 unventilated < ± 2 W/m2 < ± 0.5 % change per year < ± 0.2 % (100 ... 1,000 W/m2) < ± 10 W/m2 test report included < ± 0,4 % (-30 ... 50 °C) test report included < ± 0.2 % (0 ... 90 °C at 1,000 W/mF) 2 % Information subject to change, errors and omissions excepted / As at 03-2016

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PYRANOMETER SR20-D2 - 2

meteo control Energy & WeatherServices CONFIGURATION Bus interface Interface: Protocol: Baud rate: Data format: Default slave address: RS-485 Modbus RTU 19,200 bps 8N1 51-60, see identification label Analog output Gradient: Offset: Unit: Abbreviation: MEASUREMENT VALUES RECORDED Bus interface G_Hx* / G_Mx* Irradiance in horizontal plane / Irradiance in PV-module plane Analog output G_Hx* / G_Mx* Irradiance in horizontal plane / Irradiance in PV-module plane x is a placeholder for a consecutive number. If more than one sensor of a given type is installed, the numbering starts with 1....

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