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SR11-TR PYRANOMETER

SR11-TR PYRANOMETER
2Pages

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Thermal Sensors First class pyranometer with 4-20 mA transmitter SR11-TR is a high accuracy solar radiation sensor. SR11-TR pyranometer complies with the first class specifications of the ISO 9060 standard and the WMO Guide. It is the preferred instrument for outdoor PV system performance monitoring, according to the ASTM E2848 standard. SR11-TR houses a 4-20 mA transmitter for easy read-out by dataloggers commonly used in the industry. Introduction SR11-TR is a solar radiation sensor that is applied in general high accuracy observations. It measures the solar radiation received by a plane surface from a 180o field of view angle. This quantity, expressed in W/m2, is called “hemispherical” solar radiation. SR11-TR pyranometer can be employed outdoors under the sun, as well as indoors with lampbased solar simulators. Its orientation depends on the application and may be horizontal, tilted (for plane of array radiation) or inverted (reflected radiation). Figure 1 SR11-TR first class pyranometer with 4-20 mA transmitter 3 Using SR11-TR is easy. The pyranometer can be connected directly to commonly used data logging systems. The irradiance in W/m2 is calculated by using the transmitter’s output. In SR11-TR’s standard configuration, the 4 to 20 mA output corresponds to a transmitted range of 0 to 1600 W/m2. This range can be adjusted at the factory upon request. PV system performance monitoring The ASTM E2848 “Standard Test Method for Reporting Photovoltaic Non-Concentrator System Performance” (issued end 2011) confirms that a pyranometer is the preferred instrument for PV system performance monitoring. SR11-TR pyranometer complies with the requirements of this standard. Figure 2 overview of SR11-TR: (1) cable, (2) opening for fixation of sun screen, (3) thermal sensor with black coating, (4) inner dome, (5) outer dome, (6) sun screen, (7) humidity indicator, (8) desiccant holder, (9) transmitter housing, (10) bubble level, (11) levelling feet, (12) cable gland PV system performance monitoring general solar resource monitoring meteorological networks building physics Copyright by Hukseflux. Version 1302. We reserve the right to change specifications without prior notice Page 1/2. For Hukseflux Thermal Sensors go to www.hukseflux.com or e-mail us: info@hukseflux.com

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Thermal Sensors SR11-TR design SR11-TR pyranometer employs a thermal sensor with black coating, two glass domes and an anodised aluminium body, which also houses the transmitter. hemispherical solar radiation ISO classification first class pyranometer Calibration uncertainty < 1.8 % (k = 2) Calibration traceability to WRR Spectral range 285 to 3000 x 10-9 m Transmitted range 0 to 1600 W/m2 Rated operating temperature -40 to +80 oC range Temperature response < ± 2 % (-10 to +40 °C) Standard cable length 5m longer cable, in multiples of 5 metres internal temperature sensor adapted transmitted...

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SR11-TR PYRANOMETER 2Pages

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SR11-TR PYRANOMETER
2Pages