Capacitive Level Sensors for Industrial Applications
BEDIA level sensors are of high quality, practically maintenance free and have a wide operating temperature range. They respond to the change of capacitance occurring when an electrode surrounded by air is immersed into the medium to be monitored. This capacitance change causes a circuit to oscillate which is processed electronically.
The different versions can be used as MIN/MAX sensors with closed circuit principle. The level sensors are factory-preset as a minimum or maximum sensor with a open circuit or closed circuit principle. The probes have a short-circuit-proof switching transistor output and are available as minus switching or plus switching.