WEKA Magnetic Visual Level Indicators (VLI) are level measuring instruments based on the magnetic-float-principle. The basic execution visualizes the liquid level of a tank clearly without using any electric energy. Electronic signals can however be generated with the use of either magnetic switches or else with transmitters for continuous supervision of level. Interface to HART-protocol or to fieldbus systems (Profibus or Foundation Fieldbus) is available.
Considering the large variety of applications different models of VLI are available. Operation pressures from technical vacuum up to 420barg, operation temperatures ranging from cryogenic conditions up to 400°C as well as liquid densities all the way down to 0.3g/cm³ are within WEKA’s scope of supply.