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Calibrating to a higher standard

ISO/IEC 17025 accreditation assures customer confidence as our calibration standards, methods, and published uncertainties, are independently audited annually.

Our story

Founded in 2015, ISO-CAL North America is the largest one-stop solar radiometer (sensor) calibration service provider in North America by volume, offering calibration services on all major brand pyranometer and pyrheliometer models. We offer both indoor and outdoor ISO/IEC 17025 accredited primary and secondary transfer calibration services. Our emphasis is providing calibration services with the fastest turnaround times in the industry, while also achieving the lowest (best) calibration uncertainty estimates in the industry.

NREL NPC 2016_011

Measurement Accuracy Matters

Every ISO-CAL North America solar radiometer calibration report in addition to stating the before and after sensitivity result, also states the expanded calibration uncertainty estimate on the reported sensitivity value, expressed as a percentage (95% confidence interval). Expanded calibration uncertainty is an integral component to estimating sensor measurement uncertainty at the field level.

Solar Radiometer Calibration

ISO-CAL North America offers indoor and outdoor calibration services on all major brand pyranometer and pyrheliometer models. Additional services include outer dome replacement on select pyranometer models, as well as desiccant agent and bubble level replacement.

Other supported solar radiometer products include UV-A and UV-B radiometers, albedometers, net radiometers, FIR pyrgeometers, PAR, LUX, select spectro-radiometer models and more.

pyranometer calibration facility
pyranometer calibration facility

Solar Radiometer Calibration

ISO-CAL North America offers indoor and outdoor calibration services on all major brand pyranometer and pyrheliometer models. Additional services include outer dome replacement on select pyranometer models, as well as desiccant agent and bubble level replacement.

Other supported solar radiometer products include UV-A and UV-B radiometers, albedometers, net radiometers, FIR pyrgeometers, PAR, LUX, select spectro-radiometer models and more.

ISOCAL_RMA_Portal
How it Works

Our RMA Process

Our online RMA (Return Merchandise Authorization) system greatly simplifies the return process for customers, as the system allows registered users to quickly generate RMA numbers for their sensor returns 24/7, as well as providing tracking info for their sensor returns.

Additional value-added system benefits include automated email notifications for any previously calibrated pyranometer that has come due for calibration. System registrants automatically receive an RMA report copy by email indicating their unique RMA# for each online RMA request submitted.

What is ISO/IEC 17025 Calibration?

ISO/IEC 17025 calibration is an international standard that outlines the general requirements for the competence of calibration and testing laboratories. This standard sets the criteria for the technical competence of these laboratories and provides a framework for quality management systems to ensure consistent and accurate results.

ISO 17025 CERTIFIED
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Hukseflux Certified
HUKSEFLUX CERTIFIED

Your Exclusive Accredited Calibration Partner for Hukseflux in North America

ISO-CAL North America LLC is proud to be the exclusive ISO/IEC 17025 accredited calibration service provider for Hukseflux throughout North America, backed by a formal contractual agreement. This exclusive partnership enables us to deliver unmatched calibration precision and reliability for all your pyranometer needs.

ISO-CAL North America is proud to announce it is the exclusive ISO/IEC 17025 accredited calibration service provider for Hukseflux Thermal Sensors throughout North America. This exclusive partnership enables us to deliver superior pyranometer and pyrheliometer calibration service and turnaround times to our customers, including unmatched calibration uncertainty.

Operating under a formal agreement with Hukseflux Thermal Sensors, ISO-CAL North America replicates the manufacturer OEM post-production pyranometer calibration process. All calibrations performed are ISO/IEC 17025 accredited. ISO-CAL North America conducts routine annual audits and round-robin calibration events with Hukseflux Thermal Sensors, as well as other accredited laboratories, and is formally accredited through A2LA (American Association for Laboratory Accreditation).

ISO-CAL North America operates multiple state-of-the-art indoor calibration chambers, in addition to operating an extensive outdoors calibration testbed for performing WRR traceable primary and secondary transfer calibration services on all ISO 9060 Class solar radiation sensors, regardless of manufacturer make and model.

With a formally accredited calibration uncertainty estimate of just 0.48% (k = 2) on our indoors ASTM G207-11 compliant pyranometer calibration process, ISO-CAL North America offers the lowest (best) expanded calibration uncertainty in the industry bar none.

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