Product Overview
The Panasonic E3Z-R81 is a compact photoelectric sensor with built-in amplifier designed for industrial automation applications. This high-performance sensor offers reliable object detection with exceptional precision and durability. With its IP67 rating and ability to withstand 1200 psi washdown, it's ideal for demanding industrial environments.
Key Features and Benefits
Compact Design with Built-in Amplifier
The E3Z-R81 features an industry-leading compact design with a built-in amplifier, eliminating the need for separate amplifier units and reducing installation space requirements.
High Environmental Resistance
With an IP67 protection rating and ability to withstand 1200 psi washdown, this sensor is suitable for harsh industrial environments including food processing, automotive manufacturing, and pharmaceutical applications.
Flexible Operation Modes
The sensor offers switch-selectable Light-ON/Dark-ON operation, providing flexibility for different application requirements and installation conditions.
Easy Installation and Connectivity
Available in both M8 and M12 connector-ready models and 2-meter pre-wired versions, the E3Z-R81 simplifies installation and reduces wiring time.
Technical Specifications
| Parameter | Specification |
| Model | E3Z-R81 |
| Type | Retroreflective Photoelectric Sensor |
| Sensing Distance | 100 mm to 4 m (when using E39-R1S reflector) |
| Light Source | Red LED (660nm) |
| Output Type | PNP open collector |
| Protection Rating | IP67 |
| Washdown Resistance | 1200 psi |
| Response Time | 1 ms maximum |
| Operating Voltage | 12-24 VDC |
| Current Consumption | 40 mA maximum |
| Operating Temperature | -25°C to +55°C |
| Connection | M8/M12 connector or 2m pre-wired |
Industrial Applications
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Packaging Machinery: Object detection, counting, and positioning
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Conveyor Systems: Presence detection and jam prevention
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Automotive Manufacturing: Part verification and assembly line control
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Food Processing: Container detection and fill level monitoring
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Material Handling: Pallet detection and sorting systems
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Pharmaceutical: Bottle/cap detection and packaging verification
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Robotics: End effector positioning and object recognition
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Printing Industry: Paper jam detection and registration control
Trust Metrics and Industry Recognition
1200 psi
Washdown Resistance
4 m
Maximum Sensing Distance
The Panasonic E3Z-R81 is widely recognized in the industrial automation industry for its reliability and performance. According to industry sources, photoelectric sensors like the E3Z-R81 are essential components in modern manufacturing systems, offering superior performance compared to mechanical switches.
Comparison with Similar Products
| Feature | E3Z-R81 | Standard Sensors |
| Built-in Amplifier | ✓ Yes | ✗ Usually separate |
| IP Rating | IP67 | IP65 typical |
| Washdown Resistance | 1200 psi | 500-800 psi typical |
| Response Time | 1 ms | 5-10 ms typical |
| Operating Temperature | -25°C to +55°C | 0°C to +50°C typical |
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Frequently Asked Questions (FAQ)
What is the maximum sensing distance of the E3Z-R81?
The E3Z-R81 offers a sensing distance of 100 mm to 4 meters when used with the E39-R1S reflector. This makes it suitable for a wide range of industrial applications requiring medium to long-range detection.
Can the E3Z-R81 be used in wet environments?
Yes, the E3Z-R81 features an IP67 protection rating, making it dust-tight and capable of withstanding immersion in water up to 1 meter for 30 minutes. It can also withstand high-pressure washdown up to 1200 psi, making it ideal for food processing and pharmaceutical applications.
What types of connections are available?
The sensor is available in two configurations: M8/M12 connector-ready models for quick installation and 2-meter pre-wired versions for direct connection. This flexibility allows for easy integration into various control systems.
How does the Light-ON/Dark-ON feature work?
The E3Z-R81 includes a switch-selectable Light-ON/Dark-ON operation mode. Light-ON mode activates the output when the receiver detects light, while Dark-ON mode activates when light is blocked. This feature provides flexibility for different application requirements.
Is the E3Z-R81 compatible with PLC systems?
Yes, the PNP open collector output of the E3Z-R81 is compatible with most PLC input modules. The sensor operates on 12-24 VDC, which is standard for industrial control systems. For purchasing this sensor for your PLC applications, visit Koeed.com.
What maintenance is required for this sensor?
The E3Z-R81 requires minimal maintenance due to its solid-state design. Regular cleaning of the lens is recommended in dusty environments, and periodic verification of alignment and detection performance should be performed as part of routine maintenance schedules.
External References and Industry Standards
The Panasonic E3Z-R81 complies with major industrial standards and is widely used across various sectors. According to industry publications, photoelectric sensors with built-in amplifiers represent the current industry standard for reliable object detection in automated systems.
For industrial automation professionals looking to implement reliable sensing solutions, the E3Z-R81 offers proven performance in demanding applications. Its combination of compact design, environmental resistance, and flexible operation makes it a preferred choice for system integrators and maintenance engineers.
To purchase the Panasonic E3Z-R81 Photoelectric Switch Sensor for your automation projects, visit Koeed.com where you can find this sensor available in original packaging with full manufacturer support.