Slot sensors SRX3-Fork/Label Series

Datasensing SRX3-Fork/Label Series

The SRX3-Fork/Label Series offers next-generation ultrasonic fork sensors engineered for precise detection of labels, adhesive materials, opaque and transparent films. Unlike optical fork sensors, the SRX3 uses ultrasonic technology, allowing it to detect materials that traditional optical sensors struggle with — ensuring maximum reliability, high-speed processing, and unmatched detection stability across a wide variety of label qualities.

Design & Functionality

• The SRX3 integrates emitter and receiver in a single fork-shaped ultrasonic unit, ensuring perfect alignment and eliminating the need for operator calibration.
• Key performance features include:
  • High-resolution ultrasonic detection for transparent, glossy, metallic, perforated, or low-contrast labels.
  • Automatic teach-in function, simplifying setup for new label material or thickness.
  • Fast switching frequency, supporting high-speed labeling lines and rapid product indexing.
  • Robust mechanical design, ideal for 24/7 industrial environments where reliability is critical.
  • Stable reading window, ensuring repeatability even when labels vary in thickness, adhesive type, or surface reflectivity.
• With advanced filtering algorithms and strong immunity to ambient light, reflections, and dust, the SRX3 series performs consistently across demanding labeling conditions.

Important: The SRX3 detects any type of label, including transparent labels that optical sensors cannot detect — making it one of the most reliable label sensors for industrial packaging lines.

Total Crossed Beams

(Applied to ultrasonic fork technology)

• The fork shape ensures a stable ultrasonic field, equivalent to perfectly crossed beams in optical sensors.
• This enables extremely high repeatability as the web material moves through the slot, reducing false readings and improving machine uptime.

Beam Pitch Options

(Interpreted as fork width and acoustic field width variations)

• Multiple fork openings available (narrow and wide) to support different label materials and web widths.
• Narrow forks enhance precision for small labels; wider forks support large webs or high-speed roll-fed systems.

Important: Multiple fork options allow the SRX3 to fit a wide range of labeling machines, from compact desktop units to large high-speed industrial applicators.

Intrinsic Synchronism

• The SRX3 automatically synchronizes its ultrasonic pulse and detection cycle, eliminating alignment errors and minimizing sensitivity drift.
• Built-in automatic compensation maintains stable operation regardless of changes in label thickness, temperature, or environmental conditions.

Operational Advantages

• Transparent-label compatible — works with any label type.
• High-speed switching for modern labeling and packaging lines.
• Zero-alignment fork design ensures trouble-free installation.
• Maintenance-free ultrasonic detection, not affected by dust, ambient light, or surface reflections.
• Applications: Label detection, edge verification, label gap detection on high-speed applicators, film detection for packaging machinery, continuous labeling systems, and any application requiring extremely reliable ultrasonic detection.