Calibration Months - Pyranometers

Inaccurate measurement of solar radiation and its components may lead to incorrect information about the performance of a solar project or might lead to penalties or financial damages.

It might also result in misleading forecasts, inaccurate climate models or even wrong predictions of environmental disasters.

 Accuracy of the measurements is critical and having a high precision pyranometer is not enough. Like any measurement devices, pyranometers degrade in the field by being exposed to UV radiation, temperature cycles and humidity. This deviation is also known as non-stability.

Periodically, we need to compare the so called “device-under-test” with a reference device, where we are aware of its characteristics and uncertainty of the measurement, and this process is called “calibration”.

Recommended by International Standards

IEC61724 recommends Class A sensors be re-calibrated once every 2 years, or more frequently per manufacturer recommendations and for Class B sensors, according to manufacturer recommendations.

To ensure an accurate and reliable measurement, and to stay compliant with IEC and WMO recommendations, we at OTT HydroMet suggest getting pyranometers re-calibrated every two years. 

 To this end we are offering the Months of calibration for pyranometers, where you will not only get 15% discount per calibration, but also a quick turnaround time.

Details of the Program

15% Discount on Pyranometer Calibrations

• Fill in the Calibration Months RMA Form: December 05 to January 31, 2023  let us know the type and quantity of the pyranometers you will send us. This helps us to  better organize our resources for a shorter turnaround time. Please note that this form will be deactivated after January 31, 2023.

• Submit your purchase order: December 05 – January 31, 2023  Our team will share with you the official quote based on the information provided on the RMA form. The corresponding purchase orders are expected to be received by the end of January 2023.

• Send the pyranometers to OTT HydroMet: December 05, 2022, to February 28, 2023  We expect to receive the mentioned instruments by the end of February 2023. A discount won't be applied to pyranometers received after this period. Please make sure to attach the RMA form on and inside the box.

• Inspection and service / repair by OTT HydroMet  We will inspect the instruments upon receival and will share with you the technical inspection report and start the calibration procedure.
  *Note: if additional repair is required, you will be informed and upon agreement, will be charged for the repair. Note the 15% discount will not apply to repairs.

• Turnaround time: Less than two weeks
• Instrument type: All types of Kipp & Zonen pyranometers, analogue and smart
• Actions to be performed during calibration:
  • Technical inspection of your device and ensuring the functionality
  • Cleaning the instrument
  • Replacing the drying cartridge / desiccant
  • Performing all maintenance and preventive actions which prolongs instrument life and ensures reliability
  • Sensitivity re-calibration and certificate

Fill in the Form

If you have any questions, please feel free to contact us.

Email:solar-service@otthydromet.com