photoelectric sensor kt5w-2n1116

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KT5W-2N1116 Photoelectric Sensor: Precision Detection for Demanding Industrial Automation

Imagine a high-speed bottling line humming with relentless efficiency. Glass containers zip past filling heads, capping stations, and labeling machines in a blur of coordinated motion. One missed bottle, one misaligned cap, one absent label – the entire process stalls, costing precious time and resources. What silently orchestrates this intricate ballet, ensuring each step occurs flawlessly? Often, it’s an unsung hero like the Sick KT5W-2N1116 photoelectric sensor, a compact powerhouse designed for reliable object detection in even the toughest industrial settings.

This specific model, the KT5W-2N1116, belongs to Sick’s proven KT5 series of thru-beam photoelectric sensors. Thru-beam sensors operate on a fundamental principle: a separate transmitter emits a focused beam of light (typically infrared or visible red), and a receiver unit positioned opposite detects this beam. When an object interrupts the light path between the emitter and receiver, the sensor triggers an output signal. This simple, yet incredibly effective method offers distinct advantages, especially in applications requiring long sensing ranges or high immunity to environmental interference like dust, steam, or target object color variations.

Delving into the KT5W-2N1116: Core Specifications and Design

The KT5W-2N1116 designation provides key insights into its capabilities:

1. Thru-Beam Principle (KT5 series): As mentioned, this sensor type uses separated emitter and receiver units. The emitter (KT5S) generates the light beam, while the receiver (KT5W) detects it and processes the signal.
2. Receiver Model (KT5W): This identifies the unit described. The ‘W’ typically indicates specific features or variants within the receiver family.
3. -2N1116 Suffix: This part number suffix often encodes crucial details:

• Sensing Range: Sick KT5 sensors, including variants like the KT5W-2N1116, typically offer impressive sensing ranges, often up to 15 meters (approx. 50 ft) or more. This long-range capability is a major strength for large machinery or conveyor setups.
• Light Source: Commonly uses infrared light (880 nm) for optimal performance in diverse conditions and minimal visibility to the human eye.
• Output Configuration: Highlights a specific switching output type. The “-2N” often signifies a solid-state NPN Normally Open (NO) transistor output. This is a widely compatible output type used extensively in automated systems.
• Connection Type: The suffix frequently indicates the connection method. The KT5W-2N1116 typically features a fixed cable connection (e.g., a 2m PVC cable), simplifying installation compared to versions needing separate connectors.
• Housing & Protection: Characterized by a robust, typically cylindrical stainless steel housing (V4A / AISI 316L), renowned for its resistance to corrosion, chemicals, and mechanical stress. It boasts a high IP67 and IP69K protection rating, signifying excellent defense against dust ingress and high-pressure, high-temperature water jets – essential for washdown environments in food & beverage or pharmaceutical production.
• Operating Voltage: Designed for common DC voltage supplies (typically 10-30 V DC), ensuring compatibility with standard industrial control systems.
• Switching Function: The NPN Normally Open output means the sensor’s output circuit is “open” (no current flow) when the beam is uninterrupted. When an object blocks the beam, the output circuit closes (“switches”), allowing current to flow to the connected device (like a PLC input).

Why Choose the KT5W-2N1116? Key Advantages

The KT5W-2N1116 photoelectric sensor excels in scenarios demanding robustness, long-range detection, and unwavering reliability:

• Exceptional Range & Precision: Its ability to detect objects reliably at distances of 10-15 meters (standard variants) makes it ideal for large-scale applications like warehouse conveyors, automated storage systems, or monitoring wide production lanes. Precise beam focusing ensures stable switching points.
• Unmatched Robustness: The stainless steel housing and IP67/IP69K rating are game-changers. This sensor shrugs off impacts, harsh chemicals, frequent washdowns, extreme temperatures, and pervasive dust – environments where lesser sensors would fail prematurely.
• High Immunity to Interference: The thru-beam principle inherently provides strong rejection of background light and is largely unaffected by the target object’s surface finish, color, or reflectivity. It reliably detects clear glass, shiny metals, matte plastics, or dark objects where diffuse reflection sensors might struggle.
• Reliable Output Switching: The solid-state NPN output offers fast switching speeds and long service life. The Normally Open function provides a clear “beam broken = object present” signal logic that integrates seamlessly with control systems.
• Installation Flexibility: Despite its fixed cable, the separate emitter and receiver units offer significant mounting flexibility to align the beam perfectly across the application path. Sturdy brackets are readily available.
• Cost-Effective Reliability: For demanding thru-beam applications needing long range and high protection, the Sick KT5 series, including the KT5W-2N1116, offers a compelling blend of performance, durability, and long-term value, reducing downtime and maintenance costs.

Prime Industrial Applications

Look for the KT5W-2N1116 photoelectric sensor wherever robust, long-range object presence or interruption detection is critical:

• Material Handling & Logistics: Monitoring pallet presence on conveyors, detecting parcels on sorting lines, verifying container positioning on AGVs (Automated Guided Vehicles), gate control in automated warehouses. Its long range covers large conveyor gaps.
• Packaging Machinery: Ensuring carton presence before sealing, detecting missing bottles or cans on filling lines, verifying label application, controlling case packer infeed. Reliability prevents costly jams.
• Automotive Manufacturing: Part presence verification on assembly lines, detecting vehicle bodies entering paint booths, monitoring component transfer between stations. Resists oils, coolants, and impacts.
• Food & Beverage Processing: Detecting containers on high-speed filling lines (bottles, cans, jars), presence checks before capping or labeling, verifying case formation. IP69K rating handles aggressive washdowns.
• Wood & Metalworking: Monitoring lumber on sawmill lines, detecting sheet metal presence before cutting/punching, verifying part ejection from machines. Immune to sawdust and metal chips.
• Pharmaceutical Production: Ensuring vial presence during filling and capping, verifying blister pack orientation, detecting trays entering sterilization tunnels. Corrosion resistance is vital in cleanrooms.

Integration and Considerations

Integrating the KT5W-2N1116 is generally straightforward:

1. Securely Mount: Physically mount the emitter (KT5S) and receiver (KT5W) units facing each other across the detection path. Precision alignment is crucial for maximum range and reliability; use the units’ alignment indicators.
2. Power & Connect: Connect the specified DC voltage (e.g., 24V DC) to the power terminals of both units. Connect the output cable of the KT5W-2N1116 receiver (typically brown: +V, blue: 0V, black: NPN output signal) to your control system input (e.g., PLC DC input module sourcing current). Remember the NPN NO logic: output active low (switches