Nivelco Vibrating Fork Level Switch

NIVOSWITCH vibrating fork level switches are suitable for level detectionof liquids or granular, powdered solids. Units with parallel vibrating forkare suitable for liquids, units with non parallel vibrating fork are suitablefor solids. Mounted on pipes, silos, tanks or hopper bins filling / emptyingcan be controlled using these devices just as well they can generate failsafealarms providing overfill- or dry run protection.The operation principle is based on the electronic circuit exciting the forkprobe making it vibrate. As the medium reaches and covers the fork itsvibration changes, or stops. The fork will start vibrating again as themedium sets it free. The electronics senses the change of vibration andgives output signal after a selected delay.Plastic coated version is recommended in aggressive mediums, highlypolished version is recommended for abrasive mediums. The PNP/NPNtransistor output versions can be connected directly to PLC, or relay unit.The NIVOSWITCH vibrating forks are able to solve switching tasks ofhighcurrent loads with the help of UNICONT PKK switching amplifiers.The UNICONT PKK-312-8 Ex intrinsically safe switching unit is designedto serve Ex rated vibrating forks.