Through-beam ultrasonic sensor ews series

Ultrasonic through-beam sensor in different housings HIGHLIGHTS Transmitter and receiver in miniature cubic or M18 housing Installation-compatible with many light barriers a true alternative for critical applications Up to 500 Hz switching frequency for fast sampling Basics 1 switching output in pnp variant Teach-in using a button Working distance between the transmitter and the receiver selectable from 10 to 2,500 mm 20-30 V operating voltage Overview Ultrasonic through-beam barrier ews for contact-free detection of objects specially in the most diverse applications e.g. with bottles or plastic foils. The through-beam sensor ews is available as a cuboid miniature housing and a cylindrical M18 housing. The ews family covers a working range of 10 mm to 2,500 mm. A through-beam barrier consists of two constructively-identical units which are operated as a transmitter and a receiver. The two units recognize whether they are intended to work as a transmitter or a receiver via the control input. If pin 2 +UB is activated, this unit functions as a transmitter. The functional principle one through-beam sensor ews, set as transmitter, sends cyclic sound impulses, received by another one, set as receiver. If an object interrupts the pulses between the transmitter and the receiver, the switching output of the receiver is set.