The Leuze GS 61/6D.2,200-S12 (Part Number: 50112426) is a high-speed optical fork photoelectric sensor from Leuze electronic's proven Series 61 (Germany). Utilizing infrared optical transmission principles, this sensor precisely detects the difference in light attenuation between the backing web and the label material, providing an ideal, highly cost-effective solution for detecting non-transparent labels (paper, opaque, or metallic) in packaging automation.

KEY PRODUCT FEATURES AND OPERATIONAL ADVANTAGES:
1. High-Performance Infrared LED Optical Technology:
Powered by a 940 nm infrared LED emitter, the sensor easily penetrates standard transparent or semi-transparent carrier webs to detect light-blocking labels. It reliably identifies non-transparent labels with demanding structural requirements, accommodating minimum label widths and inter-label gaps down to just 2 mm.
2. Ultra-Compact Slim-Line Housing (Space Optimization):
Engineered with an incredibly slim profile (11 x 30 x 60 mm), featuring a 3 mm mouth gap and 41 mm throat depth. This compact footprint allows direct integration right at the dispensing edge of modern, tightly-packed labeling machines where mounting space is severely restricted.
3. Ultra-Fast 10,000 Hz (10 kHz) Switching Frequency & 0.05 ms Response:
Operating at a blistering switching rate of 10,000 operations per second with an instantaneous 0.05 ms (50 µs) response time. It guarantees zero pulse slippage during the tracking and counting of labels moving at extreme conveyor velocities, ensuring millimeter-perfect cutting and dispensing precision.
4. Intelligent Teach-in Calibration (Local & Remote):
Features a user-friendly onboard Teach button that quickly calibrates the sensor to the specific opacity of the label and carrier web. Furthermore, it incorporates a remote Teach input, enabling the PLC/HMI to trigger automatic recalibration dynamically during product changeovers without requiring physical access by an operator.
5. Universal Push-Pull Output & M12 Pigtail Cable:
Equipped with a versatile Push-pull digital switching output, ensuring out-of-the-box compatibility with both PNP and NPN control architectures. The sensor connects via a 200 mm flexible pigtail cable terminating in a rugged metal 5-pin M12 male connector (-S12), eliminating rigid cable stress and facilitating quick plug-and-play replacement.
6. Durable Polycarbonate Housing – IP65 Protection:
Constructed with a lightweight yet impact-resistant Polycarbonate (PC) housing, providing dependable protection against mechanical shock. Rated IP65 for dust and water resistance, it ensures durable continuous operation in industrial food, beverage, and cosmetics production lines.

TYPICAL INDUSTRIAL APPLICATIONS:
• High-Speed Automated Labeling Machines: Precise edge detection and dispensing of paper and metalized labels on high-throughput beverage and bottling lines.
• Printing & Packaging Machinery: Indexing mark verification, label counting, and precise cut synchronization for packaging films.
• Pharmaceutical & Cosmetics Packaging: Barcode label alignment and product information tag verification on small vials and tubes.
• Factory Automation & Sorting: Verification of non-transparent components or objects passing through narrow guide slots.

• Manufacturer: Leuze electronic
• Part Number / Model: GS 61/6D.2,200-S12
• Order Number (Part no.): 50112426
• Series: Series 61
• Brand Origin: Germany
• Device Type: Fork photoelectric sensor for label detection
• Physical Principle: Optical
• Application Focus: Detection of non-transparent labels
• Light Source: Infrared LED, Wavelength 940 nm
• Mouth Width (Fork opening): 3 mm
• Mouth Depth: 41 mm
• Minimum Detectable Label Width: 2 mm
• Minimum Label Gap: 2 mm
• Detectable Media: Not transparent (Opaque)
• Max. Switching Frequency: 10,000 Hz (10 kHz)
• Response Time: 0.05 ms (50 µs)
• Readiness Delay: 300 ms
• Max. Conveyor Speed during Teach-in: 20 m/min
• Operational Controls: Teach button
• Teach Inputs: 1 DC input (High ≥ 8V, Low ≤ 2V)
• Supply Voltage (UB): 10 ... 30 V DC (Residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 30 mA
• Digital Switching Outputs: 1 output
• Switching Output Type: Transistor Push-pull
• Max. Switching Current: 100 mA
• Output Switching Voltage: High ≥ (UB - 2V), Low ≤ 2V
• Switching Principle: Switching signal on label
• Protective Circuits: Polarity reversal protection, short-circuit protection
• Status Indicators: 3 LEDs for power and switching state
• Connection Type: 200 mm cable with metal M12 connector, 5-pin male (A-coded)
• Dimensions (W x H x L): 11 mm x 30 mm x 60 mm
• Net Weight: 70 g
• Mounting Type: Through-hole mounting or integrated mounting thread
• Housing Material: Polycarbonate Plastic (PC)
• Housing Colors: Black RAL 9005 / Red RAL 3000
• Lens Cover Material: Optical Plastic/PC
• Ingress Protection: IP 65
• Protection Class: Class III
• Ambient Operating Temperature: -20 °C ... +60 °C
• Storage Temperature Range: -30 °C ... +70 °C
• Standards & Certifications: IEC 60947-5-2, cULus Listed