- Data availability is highly increased over traditional pyranometers
- Needs very low power
- SR25 is an excellent reference for diffuse radiation
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SR25 takes solar radiation measurement to the next level. Using a sapphire outer dome, it has negligible zero offsets. SR25 is heated in order to suppress dew and frost deposition, maintaining its high measurement accuracy. When heating SR25, the data availability and accuracy are higher than when ventilating traditional pyranometers. In addition, SR25 needs very low power; it only consumes 1.5 W compared to the usual 10 W for ventilation. The low thermal offsets make SR25 very suitable for measuring diffuse radiation. -
SR05 is the most affordable digital pyranometer meeting ISO 9060 second class requirements. It measures solar radiation received by a plane surface, in W/m2, from a 180 o field of view angle. SR05 is ideal for general solar radiation measurements in (agro-)meteorological networks and PV monitoring.- Industry standard digital outputs: easy implementation and servicing
- Easy mounting and levelling
- Pricing: second class pyranometers finally affordable for large networks
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SR20 is a pyranometer of the highest category in the ISO 9060 classification system: secondary standard. This solar radiation sensor is used where the highest measurement accuracy is required. It measures the solar radiation received by a plane surface, in W/m², from a 180 ° field of view angle. SR20 secondary standard pyranometer enables you to attain the highest measurement accuracy and excels in demanding applications. After a thorough programme of acceptance testing, SR20 was released February 2013. It offers analogue millivolt output.
- Highest category in the ISO 9060 classification system
- Low temperature dependence makes it an ideal candidate for use under very cold and very hot conditions
- Uses a state of the art thermopile sensor with black coated surface, two domes and an anodized aluminum body
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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). These industry standards allow for easy data acquisition, easy read-out and error-free instrument exchange, when using SR20-D2. Individually tested for temperature and directional response, SR20-D2 is the most accurate digital secondary standard pyranometer available.
- 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 response and directional response included as required by ISO 9060
- Re-calibration registers fully accessible to users
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SR22 is a solar radiation sensor of the highest category in the ISO 9060 classification system: secondary standard. On top of the features and benefits of the successful SR20 pyranometer, SR22 has domes made of high-quality quartz, resulting in an extended spectral range. Covering the full solar spectrum, SR22’s extended spectral range potentially offers lower measurement- and calibration uncertainties compared to pyranometers with glass domes. SR22 is typically used in high-accuracy climatological networks.
- SR22’s spectral range of 190 to 4000 x 10-9 m. SR22 covers the full solar spectrum
- SR22’s low temperature dependence makes it an ideal candidate for use under very cold and very hot conditions
- SR22 pyranometer uses a state of the art thermopile sensor with black coated surface
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SR11-TR is a solar radiation sensor that is applied in general high accuracy observations. SR11-TR pyranometer complies with the first class specifications of the ISO 9060 standard and the WMO Guide. It houses a 4-20 mA transmitter for easy read-out by dataloggers commonly used in the industry.- It houses a 4-20 mA transmitter for easy read-out by dataloggers commonly used in the industry
- Using SR11-TR is easy
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Welcome to the next level in solar radiation monitoring! The all-digital heated SR30-M2-D1 offers the highest accuracy and highest data availability: using Recirculating Ventilation and Heating (RVH™) technology, SR30 outperforms pyranometers equipped with traditional ventilation systems. SR30 is the ideal instrument for use in PV system performance monitoring and meteorological networks. It measures the solar radiation received by a plane surface, in W/m², from a 180 ° field of view angle. SR30 is an ISO 9060 spectrally flat Class A (previously “secondary standard”) pyranometer. It is employed where the highest measurement accuracy is required. SR30-M2-D1 offers several advantages over competing pyranometers:- Heated for high data availability, featuring new RVH™ technology
- Compliant with IEC 61724-1:2017 Class A and B
- Low cost of ownership
- Remote sensor diagnostics
- Liabilities covered: test certificates
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SR05 series is the most affordable range of pyranometers meeting ISO 9060 requirements. These sensors are ideal for general solar radiation measurements and popular for monitoring PV systems. Model SR05-D1A3–PV is made as a perfect alternative to PV reference cells. It offers the same Modbus interface as the most common PV reference cell model for easy compatibility. Relative to PV reference cells, SR05-D1A3-PV has the advantage of higher stability, independence of the PV cell type or anti-reflection coating, and better availability and price of recalibration.- Higher stability than PV reference cells
- Independent of PV cell type
- Affordable calibration
- Register structure and content identical to most common reference cells for easy exchangeability
- Easy implementation and servicing
- Easy mounting and levelling
- Pricing: affordable second class pyranometers
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SR15-A1 is a high-accuracy solar radiation sensor. It is "First Class" according to the ISO 9060:1990 standard and “Spectrally Flat Class B” in the 2018 revision. With its on-board heater, it is compliant in its standard configuration with the requirements for “Class B” PV monitoring systems of the new IEC 61724-1:2017 standard. SR15-A1 offers analogue millivolt output.- Best measurement accuracy in first class
- Improved response time
- With on-board heater: compliant with IEC 61724-1 Class B in its standard configuration
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SR15 digital pyranometer series is a range of high-accuracy digital solar radiation sensors. It is “first class” according to the WMO guide and ISO 9060:1990 standard and “Spectrally Flat Class B” in the 2018 revision. Version SR15-D1, equipped with an on-board heater, is compliant in its standard configuration with the requirements for “Class B” PV monitoring systems of the IEC 61724-1:2017 standard. SR15-D1 offers Modbus over RS-485 output.- Best measurement accuracy in first class
- Improved response time
- With SR15-D1’s on-board heater: compliant in its standard configuration with IEC 61724-1 Class B
- On-board calibration history