Humidity Academy, episode 3: Calibration planning and life-cycle maintenance of humidity instruments

Humidity Academy, episode 3
Industrial Manufacturing and Processes
Industrial Measurements
Life Science

This webinar series is about humidity measurement in industrial processes. The third episode covers calibration basics and planning the life-cycle maintenance of humidity instruments. Our Application Engineer Nevon Mansour and scientists Ilona Pohjavirta-Schmidt & Hannu Sairanen discuss their secrets on those topics, and you will also hear tips on quick field-maintenance possibilities that anyone can perform on their own.



  • What is calibration and why should measurement instruments be calibrated?
  • Selecting the right calibration points and determining the appropriate calibration interval
  • Understanding the impact of sensor technology on calibration
  • How to spot-check a process using a hand-held instrument
  • The benefits of using ISO17025 accredited calibration services

The Humidity Academy webinar series covers humidity measurement in industrial processes and brings forward Vaisala’s experts, who share their knowledge and expertise with real-life examples. Short, concise episodes enable learning on the go.

Go to all episodes of Humidity Academy



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Hannu Sairanen, D.Sc. (Tech.), Applied Thermodynamics

Hannu Sairanen

Principal Scientist

As a Principal Scientist at Vaisala, Hannu Sairanen specializes in humidity measurement and applications, including humidity metrology. He has over 10 years' experience in humidity metrology, humidity measurements, and humidity-dependent processes with many publications based on his work in those areas. Hannu holds a doctorate from Aalto University in Finland, with a major in applied thermodynamics.

Research Scientist Ilona Pohjavirta-Schmidt

Ilona Pohjavirta-Schmidt

Research Scientist

Ilona is a Research Scientist with almost 4 years of experience at Vaisala. She works as one of the administrators of the R&D Humidity Laboratory, the heart of humidity measurements at Vaisala, where she applies her theoretical expertise and hands-on experience on humidity and related quantities. Ilona holds an M.Sc. in Engineering Physics from Aalto University in Finland.

Nevon Mansour, Application Engineer

Nevon Mansour

Application Engineer

Nevon works as Application Engineer at Vaisala Industrial Instruments and has several years of industrial experience. ​
She holds a B.Sc. in Mechanical engineering with a concentration on Mechatronics from the University of Oulu, Faculty of Technology, and is finalizing her master's degree.