Optical Liquid Level Sensors

They are used to monitor the level of liquids of different composition. Depending on the type, they are able to distinguish liquid from foam (beer, cola-type drinks), or detect oils or emulsions. The principle of use is to monitor the presence of liquid in containers or pipes, e.g. of its upper and lower levels – protection against overflow, protection against the pump running on empty, etc. They are suitable for use in the food and beverage industry. Depending on the type, they can also be used at higher medium temperatures (up to 140°C), or where the use of acids and bases is necessary. Use in demanding conditions must be consulted with the manufacturer.