Benefits for continuous monitoring or “on line and in situ” measurements, a few examples:
–In a food plant, air is used to dry and clean bottles. Unpredictable increase in CO2 value caused by gas supplied forklift truck.
–Aluminium foundry :bad quality of aluminium cast breech caused by intermittent bad nitrogen quality.
–Train repair centre : unexpected blockages in solenoid valves due to  an  increase number of medium size particles with increase in content of water in the air distribution line.
–Medical prosthesis plant: at final polishing step, high rejection rate due to oil and water spray in the air.