The sampling of high-pressure fluids including boiler water and steam at elevated temperature is an essential part of the modern process industries. Continuous-on-line analysis is used in many industries to malfunction. This is supported by manual sampling for specific parameters at strategic point in the process. The system used vary in complexity from a single probe with cooler, pipe-work & valves for manual sampling, to be fully automatic multi-stream sample conditioning system consoles for centralized monitoring.