Application requirements
As the air analysers themselves are mobile and have to be compact devices, the mass flow controllers and pressure controllers to which they rely on also have to be compact. Furthermore, they have to accurately control flows of air that contain volatile compounds in the ppb range (from 1 to 400 ppb) , in order for them to be analysed qualitatively and quantitatively. Moreover, these analysers are mobile and accurate devices and have to perform their duty continuously, in nearly real-time.