punktnivåindikator

A punktnivåindikator, or point level indicator in English, is a device used in industrial processes to detect the presence or absence of a specific material at a particular point. These indicators are commonly employed in tanks, silos, and other containers holding granular, powder, or liquid substances. The primary function is to provide a signal when the material reaches a certain predetermined level, acting as either a high-level or low-level alarm or control point.

There are several types of punktnivåindikator technologies. Rotary vane indicators are a common type, where a rotating paddle encounters resistance when material is present, stopping its rotation and triggering a switch. Other types include capacitance probes, which measure changes in electrical capacitance as material surrounds the probe, and vibrating fork sensors, which detect damping of vibration when immersed in material. Ultrasonic and radar sensors can also be used for non-contact level detection at specific points.

The applications of punktnivåindikator devices are diverse. They are crucial for preventing overfilling or emptying of storage vessels, ensuring process continuity by signaling when material is low, and providing safety interlocks by indicating when a certain level has been reached. In bulk material handling, they help manage inventory and automate filling and emptying operations. Their reliability and simplicity make them a staple in many manufacturing and processing environments.