The carrier frequency pickups detect the r.p.m. of KEM flow meters. Each passing of a tooth will be detected contactless and produces a pulse at the output.Therefore each pulse corresponds to a fixed volume and the frequency corresponds to the volume flow. Suitable for the application there are versions with different outputs available: 3-wire npn, NAMUR, open collector and 3-wire pnp (not available for the Ex version).
The pickup is screwed into the meter via a thread M14×1.5 (option UNF ½”-20). Accordingly the VTE Ex fits on all KEM measuring cells. The electrical connection takes place via screw terminals in the housing.