The E+E accredited dew point calibrations impress with a very low measurement uncertainty and a range from -90 °C frost point to +95 °C dew point.

Standard calibrations are performed in nitrogen. Calibrations of dew point hygrometers in other carrier gases such as methane are possible upon request. Special calibrations of dew point meters and dew point mirrors are possible in the designated NMI laboratory.

In a dual pressure humidity generator, air is generated with a defined mole fraction (water/gas) with a maximum gas flow of 5 l/min under normal conditions (displayed). This gas flow is conveyed to the test sample and at the sample location, generates a defined dew point temperature depending on the pressure. As an option, the test sample can be temperaturestabilised in a measurement chamber. The calibration system is the Austrian national standard for air humidity.