In the field of scientific instrumentation and measurement, measurement uncertainty is fundamental. In addition to the value of the quantity, a measurement is characterized by its uncertainty, and the lower the uncertainty, the better the knowledge of the measured parameter.
Sensitivity to solar irradiance
Measurement of solar irradiance is of fundamental importance in the field of renewable energies, and its understanding allows the evaluation of photovoltaic systems performance. Measurements are performed with pyranometers calibrated at the accredited ACCREDIA ISO17025 LAT N° 124 Photo-Radiometry laboratory of SENSECA.
Calibration is in accordance with ISO 9847:2023 Type A1, and involves a comparison between the Pyranometer being calibrated and the reference Pyranometer according to a procedure deposited and approved by ACCREDIA, the Italian national accreditation body. The Reference Pyranometer in turn is calibrated annually at the PMOD Word Radiometric Centre in Davos.
Calibration is in accordance with ISO 9847:2023 Type A1 standard and involves a comparison between the calibrated pyranometer and the reference pyranometer according to a procedure deposited and approved by our national accreditation body. The reference pyranometer, in turn, is calibrated annually at the PMOD World Radiometric Centre in Davos.
New achievements
The SENSECA LAT N° 124 laboratory was the first laboratory in the world to be accredited according to ISO 17025 standard for the calibration of pyranometers and now has over 10 years of experience.
Research has not stopped, and if the initial accreditation uncertainty was 2.6%, today we can offer calibration services for pyranometers with an extended uncertainty (k=2) of 1.7%.
Impact on the guidelines of the IEC 61724 standard for the monitoring and control of photovoltaic (PV) systems.
The IEC 61724 standard covers various aspects, including system performance, reliability, and maintenance of a photovoltaic system. Regarding pyranometers, which are devices used to measure solar irradiance, the standard specifies very stringent calibration requirements and requires a calibration uncertainty of less than 2%.
We are proud of this achievement and ready to contribute to the reliability of your solar irradiance measurements!
For over 20 years, we’ve been leading producers of piranometers, meticulously crafted on the thermopile principle for utmost precision.
Our latest innovation is the PYRAsense family! Compliant with ISO 9060:2018 standards and WMO (World Meteorological Organization) recommendations, our PYRAsense models are categorized as Spectrally Flat Class A (PYRAsense10), Class B (PYRAsense02), and Class C (PYRAsense03).
This comprehensive range caters to diverse market demands and varied application needs.
