In any power plant running on steam, the purity of boiler feed water and steam is absolutely crucial; especially to steam turbine, steam boiler, super heater, condenser and other steam equipment. To prevent damage of steam turbine, steam boiler and other apparatus due to scaling and corrosion, on line steam and water analysis of critical parameters such as pH, Conductivity, Dissolved Oxygen, Silica, Sodium, Phosphate etc. is a must. The steam can be as hot as 560ºC.The pressures can be as high as 250 bar. To keep the power plant up and running, with minimum erosion and corrosion of steam turbine, steam boiler and condenser.