High-Performance Inductive Proximity Sensor for Industrial Automation
Product Overview
The Balluff BES 516-131-S4-C (BES0178) is a premium inductive proximity sensor designed for reliable object detection in demanding industrial environments. This M12 threaded cylindrical sensor offers exceptional performance with a 4mm sensing range and PNP switching output, making it ideal for integration with PLC systems and industrial automation applications.
Product Gallery
Product Demonstration Video
Demonstration of BES 516-131-S4-C operation and installation
Technical Specifications
Parameter
Specification
Details
Product Code
BES 516-131-S4-C
Alternative: BES0178
Sensor Type
Inductive Proximity
Non-flush mounting
Sensing Range
4 mm
Standard detection distance
Housing Dimensions
Ø 12 x 70 mm
Compact cylindrical design
Thread Style
M12 x 1
Standard industrial thread
Switching Output
PNP NO/NC
Normally Open/Normally Closed
Switching Frequency
2500 Hz
High-speed operation
Housing Material
Nickel-plated brass
Corrosion resistant
Operating Voltage
10-30 V DC
Standard industrial range
Current Consumption
< 15 mA
Low power consumption
Protection Class
IP67
Dust and water resistant
Temperature Range
-25°C to +70°C
Wide operating range
Key Features and Benefits
High Sensitivity: Fast response time with stable performance for precise object detection
Food Processing: Metal detection in production lines
Pharmaceutical: Equipment position monitoring
IP67
Protection Rating
2500 Hz
Switching Frequency
-25°C to +70°C
Temperature Range
4 mm
Sensing Range
Frequently Asked Questions
What is the difference between flush and non-flush mounting?
Non-flush mounting (like the BES 516-131-S4-C) allows the sensor to detect objects from all sides, providing a larger sensing area. Flush-mounted sensors can only detect objects from the front and are typically used in applications where space is limited.
Can this sensor detect non-metallic objects?
No, inductive proximity sensors like the BES 516-131-S4-C are specifically designed to detect metallic objects only. For non-metallic object detection, capacitive or optical sensors would be more appropriate.
What does PNP NO/NC switching output mean?
PNP refers to the transistor output type (sourcing). NO (Normally Open) means the output is off when no target is detected, and NC (Normally Closed) means the output is on when no target is detected. This sensor can be configured for either mode.
How do I wire this sensor to a PLC?
The sensor typically has 3 wires: brown (24V+), blue (0V), and black (signal output). Connect brown to PLC power supply positive, blue to negative/ground, and black to the PLC input channel. Always refer to the specific wiring diagram for your application.
What maintenance is required for this sensor?
Inductive sensors are generally maintenance-free. However, regular cleaning of the sensing face and visual inspection for physical damage is recommended. Ensure the mounting remains secure and check connections periodically.
Important Installation Notes
Mounting Considerations: Ensure proper clearance around the sensor (typically 2x the sensor diameter) to prevent interference from surrounding metal objects. Follow the manufacturer's recommended installation procedures for optimal performance.
Environmental Factors: While IP67 rated, avoid exposing the sensor to chemicals that may damage the housing material. Consider environmental temperature variations that may affect sensing distance.
External References and Citations
The BES 516-131-S4-C (BES0178) is documented across multiple industrial platforms:
Balluff Official Documentation: Complete technical specifications and installation guidelines
Industrial Distributors: Available through authorized Balluff distributors worldwide
PLC Integration Guides: Compatible with Siemens, Allen-Bradley, Omron, and other major PLC brands
Industry Standards: Complies with IEC 60947-5-2 for proximity sensors
Sources: Balluff product documentation, industrial automation standards, and verified technical specifications from authorized distributors. Product images and video provided by Koeed Industrial Automation.
Last Updated: Current technical specifications based on manufacturer's latest documentation.
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