4 m Retro-reflective Sensing
With the E39-R1S reflector, the sensing distance spans 100 mm to 4 m for flexible installation.
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Omron
Omron E3Z-R81 Photoelectric Sensor Retroreflective 4m PNP 12-24VDC
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$21.19
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | Omron |
| Model Number | E3Z-R81 |
| Product Category | Photoelectric Sensor |
| Sensing Method | Retro-reflective with MSR function |
| Sensing Distance | 100 mm to 4 m (with E39-R1S reflector) |
| Output Type | PNP open collector |
| Switching Capacity | 26.4 VDC max., 100 mA max. |
| Supply Voltage | 12 to 24 VDC ±10% |
| Current Consumption | 30 mA max. |
| Response Time | 1 ms max. |
| Light Source | Red LED (660 nm) |
| Connection Method | Pre-wired, 2 m cable |
| Degree of Protection | IP67 |
| Operating Temperature | -25 to +55°C (no icing) |
| Housing Material | PBT |
Key Features
Red LED Light Source
Uses a 660 nm red LED, providing a visible beam for setup and alignment.
PNP Open Collector Output
Delivers a PNP output rated 26.4 VDC and 100 mA maximum for sourcing control inputs.
MSR Function
Retro-reflective sensing with MSR function supports stable detection in the specified range.
IP67 Protection
PBT housing rated IP67 for industrial environments requiring dust and water resistance.
Applications
- Object detection on conveyor lines
- Material handling and logistics systems
- Packaging machinery presence sensing
- Door and gate position monitoring
- Automated storage and retrieval equipment
- General retro-reflective sensing applications
Purchase Information
We support online purchase of the Omron E3Z-R81 Photoelectric Sensor. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is the Omron E3Z-R81? The E3Z-R81 is a retro-reflective photoelectric sensor with MSR function, a PNP output, and a 4 m sensing distance with the E39-R1S reflector.
What is the sensing method? It is a retro-reflective sensor with MSR function, using a reflector to return the light beam.
What is the sensing distance? When using the E39-R1S reflector, the sensing distance is 100 mm to 4 m.
What output type does it provide? It provides a PNP open collector output.
What is the switching capacity? The output is rated 26.4 VDC maximum and 100 mA maximum.
What supply voltage is required? It operates on 12 to 24 VDC ±10%.
What is the response time? The response time is 1 ms maximum.
What light source does it use? It uses a red LED with a wavelength of 660 nm.
How is it connected? It is a pre-wired model with a 2 m cable.
What is the degree of protection? The sensor is rated IP67.
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Send us your part number and technical requirements.
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