Ultrasonic Label Sensor, Slot Type, 10-30V DC

Ultrasonic label sensor delivers high-speed, precise label detection with a slot width of 5mm and slot depth of 68mm, capable of detecting label gaps ≥2mm. The label sensor features NPN+PNP output types, easily identifying single-sheet, double-sheet, and no-label conditions. Green light indicates single sheet, red light indicates double sheet, and yellow light indicates air gap. Built-in reverse polarity protection circuit supports wide voltage input (10-30VDC).

Feature

1. Precise Detection of Transparent Labels: Ultrasonic label sensors identify thickness differences between labels and backing paper through acoustic signals, unaffected by material light transmittance. They deliver stable detection even on transparent or semi-transparent labels, eliminating misjudgments common with traditional photoelectric sensors.
2. High-Speed Response for Assembly Lines: Response times as low as microseconds support high-speed labeling and slitting equipment. This ensures accurate signal output during mass production, enhancing efficiency and stability.
3. Strong Anti-Interference Capability: Independent of ambient light, unaffected by color, printed patterns, or external light sources. Suitable for complex industrial environments, reducing debugging and maintenance efforts.
4. Easy Installation and Maintenance: Features a channel-type structure for simple installation. Supports NPN+PNP outputs to meet diverse automation equipment needs. Includes self-learning and calibration functions to minimize manual operation errors.

Dimension (unit: mm)

Wiring Diagram

Learning and Teaching Function

Power-on Status: Air indicator yellow, single sheet green, double sheet red.

• Press and hold button for >2s to start flashing green light. Release to automatically learn single sheet (successful learning flashes green 3 times, failure flashes red 3 times).
• When the button is pressed for over 5 seconds, the flashing green light switches to a flashing yellow light. Releasing the button at this point automatically learns double sheets (successful learning is indicated by 3 green flashes, failure is indicated by 3 red flashes).
• When learning single sheets, the double sheet threshold is automatically set. Learning completes automatically, and the learning function has no time limit.