How frequently should our anemometers be calibrated?
This question can be quite difficult to answer because there are several key factors that need to be taken into account, which vary according to the industry in which the anemometers are used.
However, for certain sectors, such as the wind energy one to which we will refer, there is a specific answer to this question, as standards have been set up and need to be followed. According to IEC 61400-12-1, the anemometers used for wind potential measurements must be calibrated right before and after the measurement period. In addition, according to E.SY.D. (Greece’s National Accreditation System) anemometers must be calibrated at least once per year.
Do all types of anemometers need to be calibrated?
In the wind energy industry, we are mainly using cup anemometers (class A & class B) and in fewer cases sonic anemometers. Both types must be calibrated at regular intervals, as defined by the standards, to ensure that all wind measurements are accurate.
Are there risks if we do not calibrate our anemometers?
The danger hidden behind an un-calibrated anemometer is the incorrect conduction of a measurement or the increased uncertainty of the measurement. Sometimes the main but not correct factor in deciding whether or not to calibrate an anemometer is the cost of the calibration itself. Yet, the cost of an incorrect measurement is much higher compared to the calibration cost.
How to choose a partner company to calibrate our anemometers?
The company that will calibrate your anemometers should be accredited to carry out this activity. The participation of a company that conducts calibrations in international organizations for the calibration of anemometers, gives additional reliability to the calibration results.
Our company is certified by E.SY.D. (Greece’s National Accreditation System) according to EN ISO / IEC 17025: 2005 for the calibration of anemometers and is a full member of MeasNet’ s network (the International Network of Harmonized and Recognized Wind Measurements).
Contact our experts at info@windengineering.gr or call us at +30 210 6149424, and visit this link on our website to learn more about our certifications.