NIVOSWITCH Grenzwertschalter

NIVOSWITCH vibrating fork level switches with parallel swinging forks are suitable for detecting the level of liquids. Mounted on pipes and tanks, they can control filling/emptying and also generate fail-safe alarms that provide overflow or dry-running protection. The operating principle is based on the fact that the electronic circuit stimulates a vibration in the fork probe. When the medium reaches and covers the fork, its vibration changes. The fork begins to swing freely again when the medium releases it. The electronics detect the change in vibration and give an output signal after a certain delay. The plastic-coated version is recommended for use in aggressive media, the highly polished version for use in abrasive media. The PNP/NPN transistor output versions can be connected directly to a PLC or a relay unit.