As a technology-intensive production plant, thermal power plants are more prone to accidents. Statistics show that boiler problems account for more than 70% of the total accidents in power plants, whereas the leakage and blasting accidents caused by super-heater, re-heater, economizer, and water wall are the major problems that plague the safety production in power plants.

Pressure is the second most frequently measured process variable in industrial processes, following temperature. Reliable pressure measurement of liquids, steam and gases is an important prerequisite for both the optimisation of procedures and the efficient use of energy and raw materials.