ClearSight / RightSight Clear Object Detection Sensors

ClearSight / RightSight Clear Object Detection Sensors

Allen‑Bradley ClearSight RightSight Clear Object Detection sensors are specialized photoelectric sensors engineered to reliably detect transparent or clear objects — such as plastic bottles, clear packaging, or other see-through materials — that are typically difficult for standard sensors to sense. These sensors use a modified optical system to differentiate between the target object and the background, ensuring accurate detection even when the object is transparent.

Purpose of Clear Object Detection Sensors

• To detect transparent or translucent objects (like clear plastic bottles or containers) without false triggering from the background.
• To maintain production integrity in filling, packaging, and bottling lines where transparency introduces sensing challenges.
• To reduce defects or product loss by providing high-reliability sensing in automated lines that handle clear materials.
• To operate in hygienic or washdown environments thanks to durable design.

Key Features of ClearSight / RightSight Clear Object Sensors

• Modified Optical System: Specifically tuned for clear object detection, allowing the sensor to “see through” transparent surfaces. Rockwell Automation+1
• Voltage Variants: Available in 24 V DC models as well as universal AC/DC versions (120 V AC or 220 V AC). Rockwell Automation

Output Types:

1. Dual NPN / PNP for DC models. Rockwell Automation
2. MOSFET output for AC/DC models. Rockwell Automation

Sensing Distance: Typically up to 1 meter for clear object detection. Rockwell Automation

Rugged Design: IP69K rating and ECOLAB certification for washdown environments. Rockwell Automation

1. Mounting Options:

• Threaded 18 mm nose-mount
• Through-hole mounting
• Threaded 18 mm base-mount Rockwell Automation

Connectivity: Available with cable or Micro M12 connector. Rockwell Automation

Status Indicators: LEDs for power, margin, and output states, aiding in setup and diagnostics. Rockwell Automation

Common Part Numbers for ClearSight / RightSight Clear Object Detection

Here are some of the widely used Allen-Bradley ClearSight RightSight clear object detection sensor part numbers:

• 42EF‑C2KBA‑F4 — Clear object detection, 10.8‑30V DC, NPN and PNP outputs, 0–1 m range. HESCO Store+1
• 42EF‑C2KBD‑F4 — A variant with similar clear detection characteristics. (Check Rockwell catalog for exact specs.)
• (Based on general 42EF Clear‑Object series) Other models may include those with IO‑Link, adjustable sensitivity, or other connection types.

How ClearSight Sensors Work

ClearSight sensors use a combination of light emission and reception techniques that allow them to detect clear objects reliably. The modified optics help focus on the object while filtering out background. During operation:

1. The emitter sends a light beam (usually red) which passes through the clear target.
2. The receiver, aligned appropriately, detects the slight distortion, refraction, or reflection caused by the clear object.
3. The sensor’s internal circuit evaluates the received signal relative to background reflection, and only triggers output when the characteristics match a valid transparent object.

Applications of ClearSight / RightSight Clear Object Detection

These sensors are especially useful in:

• Packaging Lines: Detecting clear bottles, jars, blister packs, or clear film packaging.
• Beverage Industry: Sensing empty or filled transparent bottles, vials, or containers.
• Pharmaceutical Packaging: Detecting clear vials, syringes, or ampoules to avoid miscounts or packaging errors.
• Plastic Manufacturing: Monitoring clear plastic parts, sheets, or extruded products on conveyors.
• High Hygiene Environments: Thanks to IP69K rating, they work well in washdown areas like food, beverage, and pharma.

Benefits of Using ClearSight / RightSight Clear Object Sensors

• Reliable Detection of Transparent Objects: Minimizes errors or misreads on clear products.
• Reduced Waste: Helps in avoiding false rejects or missed detections, saving material cost.
• Flexible Power Options: Works with both DC and AC systems, simplifying integration.
• Durability: Robust design suits demanding industrial environments.
• Ease of Setup: LEDs and adjustable sensitivity (on some models) make calibration straightforward.
• Maintenance Efficiency: Status LEDs help detect faults, reducing downtime for troubleshooting.

Important Design Considerations

When implementing ClearSight sensors, keep in mind:

• Correct alignment is critical — since the object is transparent, small misalignments can lead to detection failure.
• Sensitivity should be properly adjusted based on the thickness, material, and refractive index of the clear object.
• Use the appropriate mounting style (nose, base, or through-hole) depending on the conveyor or machine layout.
• For dynamically changing products, IO‑Link enabled versions might offer better diagnostics and automatic reconfiguration.

Conclusion

Allen-Bradley ClearSight RightSight Clear Object Detection Sensors are highly specialized yet robust devices engineered to solve the challenging task of detecting transparent and clear materials in industrial automation. With their optimized optics, durable IP69K design, flexible power and output options, and reliable detection up to 1 meter, they are ideal for applications in packaging, beverage, pharmaceutical, and plastics industries. Proper selection and alignment of these sensors can significantly improve process reliability, reduce waste, and maintain high throughput in automated systems.