The vibrating probe of this level switch is operated by using two built-in piezoelectric elements on the vibration tube. The first piezoelectric element is triggered by a pulse signal that is created from circuit to transport vibration energy out, while the other piezoelectric element receives the vibration and transmits it to output electric signal. Applications include: grounded coffee, milk powder, chocolate, coal ash, bulk, sugar, salt, wheat, grains, glass debris, plastic pellet, cement sludge level detection in waste water.
Aplus Finetek Sensor Inc., Walnut, CA 909-598-2488 www.aplusfine.com
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