The Leuze GSU14E/LGT.3-M12 (Part Number: 50146056) is the latest-generation ultrasonic fork sensor belonging to Leuze electronic's advanced Series 14E (Germany). Upgraded comprehensively on Leuze's proven acoustic measurement platform, this sensor provides universal label detection reliability with zero optical limitations, featuring built-in digital IO-Link communication to support smart Industry 4.0 packaging automation.

KEY PRODUCT FEATURES AND OPERATIONAL ADVANTAGES:
1. Advanced Ultrasonic Transmission Principle – Universal Media Detection:
By measuring the acoustic attenuation of high-frequency ultrasonic waves passing through moving web materials, the sensor precisely evaluates mass density differentials between labels and backing web gaps. It reliably detects transparent clear-on-clear labels, metallic foil labels, dense multi-color printed paper labels, and thick booklet/leaflet labels where optical sensors cannot function.
2. Integrated Digital IO-Link v1.1 Communication:
Supports point-to-point IO-Link digital communication for real-time diagnostic feedback (monitoring acoustic signal reserve, contamination warnings, or web breakage), remote parameter configuration from PLC/HMI, and automatic recipe management for instant format changeovers without manual mechanical realignment.
3. High-Speed Web Performance (Up to 450 m/min) & 0.2 mm Repeatability:
Powered by a high-speed digital signal processor, the sensor easily accommodates high-throughput industrial labeling machinery operating at extreme speeds up to 450 m/min with a rapid 0.2 ms response time, maintaining sub-0.2 mm dispensing edge accuracy.
4. Flexible Calibration (Easy Teach-in): Local Push Button & Remote Input:
Features dynamic teach-in while the label web travels through the slot, alongside static teach-in via an onboard push button. The integrated remote Teach input (Pin 5) allows external recipe triggers directly from the master controller.
5. Optimized Fork Geometry & Standard Industrial M12 Connector:
Features a 4 mm mouth width and 68 mm throat depth to accommodate diverse industrial label widths smoothly. The 5-pin M12 male connector (A-coded) is oriented horizontally parallel to web travel, minimizing footprint and eliminating cable strain.
6. Heavy-Duty Diecast Zinc Construction – IP65 Protection:
Constructed with a rugged diecast zinc housing finished in durable red and black powder coat, resisting mechanical vibration, physical impact, and industrial cleaning agents with an IP65 ingress rating.

TYPICAL INDUSTRIAL APPLICATIONS:
• High-Speed Automated Labeling Machines: Accurate label edge detection and dispensing across beverage bottling, edible oil, and personal care packaging lines.
• Pharmaceutical Packaging: Verification of counterfeit-proof clear labels, clinical trial booklet labels, and instruction leaflets on vials and medicine bottles.
• Printing & Converting Machinery: Label gap verification, label counting, and web splice detection on continuous winding and unwinding stands.
• Electronics & Semiconductor Manufacturing: ESD warning label and metallic bar code tag detection on component carriers.

• Manufacturer: Leuze electronic
• Part Number / Model: GSU14E/LGT.3-M12
• Order Number (Part no.): 50146056
• Series: Series 14E
• Brand Origin: Germany
• Device Type: Ultrasonic forked sensor for label detection
• Physical Principle: Ultrasonics
• Mouth Width (Fork opening): 4 mm
• Mouth Depth: 68 mm
• Minimum Detectable Label Dimensions: Label width ≥ 2 mm, Label length ≥ 4 mm
• Minimum Label Gap: ≥ 2 mm
• Detectable Media: Transparent (Clear-on-Clear), Non-transparent, Metallic/Foil, Booklet/Leaflet labels
• Max. Conveyor Speed (Operation): ≤ 450 m/min
• Response Time: 0.2 ms (200 µs)
• Positional Repeatability: 0.2 mm (at 100 m/min web speed)
• Readiness Delay: 300 ms
• Communication Interface: IO-Link v1.1 (COM2: 38.4 kbit/s, Smart Sensor Profile)
• Operational Controls: Onboard Teach-in button + Remote Teach input
• Supply Voltage (UB): 18 ... 30 V DC (Residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 60 mA
• Digital Switching Outputs: 1 or 2 outputs (Configurable Push-pull / IO-Link)
• Switching Output Type: Transistor Push-pull (PNP / NPN / IO-Link compatible)
• Max. Switching Current: 100 mA
• Output Switching Voltage: High ≥ (UB - 2V), Low ≤ 2V
• Protective Circuits: Polarity reversal protection, short-circuit protection
• Status Indicators: Multi-color LEDs for power, switching state, teach status, and IO-Link activity
• Connection Type: M12 metal connector, 5-pin male (A-coded, horizontal plug outlet)
• Dimensions (W x H x L): 22 mm x 46.7 mm x 97.4 mm
• Net Weight: 270 g
• Mounting Type: Through-hole mounting or integrated mounting thread
• Housing Material: Diecast zinc
• Housing Colors: Red RAL 3000 / Black RAL 9005
• Ingress Protection: IP 65
• Protection Class: Class III
• Ambient Operating Temperature: 0 °C ... +60 °C
• Storage Temperature Range: -40 °C ... +70 °C
• Standards & Certifications: IEC 60947-5-2, IO-Link Specification v1.1, cULus Listed