• SR05-D1A3

    Digital second class pyranometer with Modbus RS-485 and 0-1 V output

    SR05 series is the most affordable range of pyranometers meeting ISO 9060 second class requirements. SR05 measures solar radiation received by a plane surface, in W/m², from a 180 ° field of view angle. It is ideal for general solar radiation measurements in (agro-)meteorological networks and PV monitoring. The pyranometer is easy to mount and install, in particular with SR05's ball levelling mechanism. Version SR05-D1A3 offers Modbus over RS-485 and 0-1 V output.
    • Industry standard digital outputs: easy implementation and servicing
    • Easy mounting and levelling
    • Pricing: second class pyranometers finally affordable for large networks
  • SR05-D1A3-PV

    Digital second class pyranometer - alternative for PV reference cell

    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
  • SR05-D2A2

    Digital second class pyranometer with Modbus over TTL and 4-20 mA output

    SR05 series is the most affordable range of pyranometers meeting ISO 9060 second class requirements. SR05 measures solar radiation received by a plane surface, in W/m², from a 180 ° field of view angle. It is ideal for general solar radiation measurements in (agro-) meteorological networks and PV monitoring. The pyranometer is easy to mount and install, in particular with SR05's ball levelling mechanism. Version SR05-D2A2 offers Modbus over TTL and 4-20 mA output.
    • Industry standard digital outputs: easy implementation and servicing
    • Easy mounting and levelling
    • Pricing: second class pyranometers finally affordable for large networks
  • SR05-LI19

    Pyranometer with handheld read-out unit / datalogger

    SR05 is a solar radiation sensor that is applied in most common solar radiation observations. Model version SR05-A1 complies with the spectrally flat Class C specifications of the ISO 9060 standard, and offers analogue millivolt output. LI19 is a high accuracy handheld read-out unit / datalogger. The SR05-LI19 combination is well suited for mobile measurements and short term datalogging. LI19 displays the measured radiation and stores measured data. Once programmed with the sensitivity of SR05, the display will show the actual value of the solar radiation in W/m².
    • The system is supplied in a practical transport case, for easy transport and protection during field measurement campaigns LI19 may also be used with other pyranometers and heat flux sensors
    • Operation of SR05-LI19 is easy
  • SR11-TR

    First class pyranometer with 4-20 mA transmitter

    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
  • SR15-A1

    Analogue first class pyranometer with heater

    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
  • SR15-D1

    Digital First class Pyranometer with Modbus over RS-485 Output and Heater

    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
  • SR15-D2A2

    Digital First Class Pyranometer with Modbus Over TTL and 4-20 mA Output

    SR15 digital pyranometer series is an all-digital range of solar radiation sensors applied in general high-accuracy observations. SR15 pyranometers comply with the “first class” specifications according to the ISO 9060:1990 standard and “spectrally flat class B” requirements in the 2018 revision. Version SR15-D2A2 offers Modbus over TTL, and 4-20 mA current loop output.
    • Best measurement accuracy in first class
    • Improved response time
    • On-board calibration history
  • SR20

    Secondary Standard Pyranometer

    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
  • SR20-D2

    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). 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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