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Ultrasonic through-beam barriers

Ultrasonic through-beam barriers detect an object between a separate emitter and receiver. The range includes Pepperl+Fuchs UBE and UBEC versions for different distances, mounting spaces and outputs.

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Ultrasonic through-beam barrier for object detection

The emitter and the opposite receiver form the sensing path. An object between them changes the sound transmission and the sensor switches the output according to the setting. The split version allows the arrangement of the heads to be adapted to the conveyor or machine. In the design, the sound path and the way the target passes are decisive.

Ultrasonic through-beam barrier Pepperl+Fuchs UBE800-F77-SE2-V31 with emitter and receiver
Compact emitter and receiver of the UBE800-F77-SE2-V31. through-beam barrier

How to choose the range and design of the through-beam barrier

  • Working distance: verify the permitted head spacing and reserve for mounting tolerances.
  • Target: prepare the dimensions, material and direction of movement of the object. For small or sound-absorbing targets, carry out a test.
  • Pouzdro: compare the rectangular version, cylindrical housing and space for the cable or connector.
  • Control: the output, switching frequency and response time must correspond to the application.
  • Environment: take into account air flow, temperature and mutual interference of adjacent ultrasonic devices.

Check the exact UBE or UBEC type

For compact mounting, the range includes UBE800-F77-SE2-V31. Cylindrical versions are represented, for example, by UBE1000-18GM40-SE2-V1 and UBE4000-30GM-SA2-V15. Verify the scope of delivery, wiring and permitted distance in the details of the selected assembly.

When to choose a fork version?

If the target material can be guided through a fixed gap, the fork housing holds the emitter and receiver in a defined position. A split through-beam barrier offers greater freedom in arranging the heads.

Technical document: datasheet UBE800-F77-SE2-V31.

Selection questions

Does an ultrasonic through-beam barrier measure the distance of an object?

The through-beam barriers offered here are used to detect a change in sound transmission between the emitter and receiver. For continuous distance from the sensor face, choose a diffuse measuring sensor with a suitable output.

What to watch out for when replacing one head of a through-beam barrier?

Verify the compatibility of the emitter and receiver, the order designation of both parts and the scope of delivery. Observe the prescribed arrangement of the heads, their orientation and the electrical wiring of the specific assembly.

Selection and technical consultation

For selection or replacement, send the complete order code and a description of the application. TECHNOLINE technical support will help compare the required version.

Related: Fork ultrasonic sensors · Hygienic through-beam barriers and sensors · All special ultrasonic sensors · Sensor Cables and Connectors.

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