What is solar irradiance meter calibration?
Solar irradiance meter calibration ensures the device accurately measures the radiant flux (power per unit area) received by a surface, expressed in watts per square meter. This is essential for verifying the safety, efficiency, and performance of photovoltaic (PV) systems according to IEC 62446-1 standards. Calibration involves comparing the irradiance meter’s output with a highly accurate solar simulator under controlled conditions.
Why is calibration important for solar irradiance meters?
Accurate solar irradiance measurements are critical in calculating the IV (current/voltage) curve of a PV system. A drift in irradiance readings can result in false performance data, incorrect installation validation, and potentially costly errors. Regular calibration:
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Maintains system performance accuracy
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Ensures compliance with industry standards
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Helps avoid underperformance or warranty issues
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Provides reliable data for diagnostics and system maintenance
How often should a solar irradiance meter be calibrated?
Calibrationhouse recommends that irradiance meters are calibrated annually. Frequent use, environmental conditions, and transport can all impact the accuracy of the device. We also maintain calibration records and send reminders for future recalibrations.
Does Calibrationhouse provide UKAS accredited calibration?
Yes, Calibrationhouse is a UKAS-accredited calibration laboratory, providing calibration services traceable to national standards. Our accreditation demonstrates our commitment to technical competence, accuracy and quality, giving customers confidence in the reliability of their equipment and calibration results.
