KEYENCE LR-ZB240CB Self-Contained Laser Sensor
The LR-ZB240CB is a high-precision laser sensor from Keyence’s LR-Z Series, featuring a built-in CMOS image sensor for superior detection stability. This model is specifically engineered to overcome common sensing challenges, such as target color variations, glossy surfaces, or fluctuating ambient light. With its robust stainless steel housing and intuitive digital display, the LR-ZB240CB is a premier choice for demanding industrial automation environments.
Technical Specifications and Ratings
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Model: LR-ZB240CB (Connector M12 type)
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Detectable Distance: 35 to 240 mm (204.7 to 35 mm with BGS/FGS)
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Standard Detectable Deviation: 35 to 180 mm: 1.5 mm; 180 to 240 mm: 3 mm
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Light Source: Red Laser (660 nm), Class 1 Laser Product (IEC60825-1, FDA Part 1040.10)
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Response Time: 1.5 ms / 10 ms / 50 ms (selectable)
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Enclosure Rating: IP68 (IEC60529), IP69K (DIN40050-9), NEMA 4X, 6P, 13
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Control Output: NPN/PNP Open Collector (selectable)
Advanced CMOS Technology for Stable Sensing
The integration of a CMOS image sensor allows the LR-ZB240CB to perform Background Suppression (BGS) and Foreground Suppression (FGS) with extreme accuracy. Unlike standard photoelectric sensors that rely on light intensity, the LR-ZB series monitors the angle of the returning light, ensuring that targets are detected based on distance rather than color or reflectivity.
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DATUM Function: This feature allows the sensor to use a stable background as a reference, enabling the detection of transparent targets or extremely dark objects.
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Superior Durability: The SUS316L stainless steel housing ensures the sensor can withstand high-pressure washdowns and chemical exposure.
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Easy Operation: Features a highly visible digital display and a large indicator for immediate status confirmation on the factory floor.
Applications and Industrial Use Cases
The KEYENCE LR-ZB240CB is optimized for versatile detection tasks, including:
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Presence Detection: Verifying parts on assembly lines, regardless of the part’s finish.
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Level Control: Monitoring fill levels in small containers or hoppers.
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Positioning: Ensuring precise placement of mechanical components in robotic cells.
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Harsh Environments: Ideal for food, beverage, and pharmaceutical industries requiring IP69K-rated equipment.
