Industrial process control involves monitoring and controlling machinery, systems, and processes across a large number of industries: chemicals, pharmaceutics, biotechnology, energy, water/wastewater, oil, gas, plastic, paper, food, and beverages. Nowadays, industrial preparation, processing, and manufacturing systems are highly automated in order to ensure that raw materials and energy are consumed in a conservative and efficient manner. In this context, the ability to measure pressures, levels, and flow rates reliably and precisely in harsh, humid, and dusty environments and to measure aggressive, corrosive, explosive, and other liquids and gases is essential.
Level sensing is one of the most common applications in industrial process control. Key factors influencing the choice of a suitable level sensor include the size, geometry, and material of the vessel, the presence of equipment in the tank such as agitators, and the type of process medium. First Sensor's range of level sensors for industrial process control includes hydrostatic level sensing as well as optoelectronic level switches and ranges from simple limit value detection to precision continuous level sensing. For hydrostatic level sensing, First Sensor offers rugged pressure transmitters in two different installation variants: as a submersible sensor for positioning in the fluid or with a screw thread for attachment to the exterior tank wall.