Description
The Omron E3B2-R7M4-US Photoelectric Sensor is a long-range, non-polarized retroreflective sensor designed for reliable object detection in industrial automation systems. Featuring a pulse-modulated infrared LED and SPDT relay output, it provides dependable performance across a sensing distance of up to 7 meters. This plug-in base style sensor supports both AC and DC supply voltages, making it versatile for a wide range of control applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Omron |
| Category |
Industrial Automation and Controls |
| Part Number |
E3B2-R7M4-US |
| Subcategory |
Photoelectric Sensors |
| Series |
E3B2 Series |
| Type |
Non-Polarized Retroreflective Photoelectric Sensor |
| Light Source |
Pulse Modulated Infrared LED |
| Sensing Distance |
7 m (retroreflective target) |
| Sensing Method |
Non-Polarized Retroreflective |
| Output Configuration |
SPDT Relay Output |
| Operating Voltage |
Universal AC/DC Supply |
| Rated Supply Range |
12–240 VDC or 24–240 VAC (typical) |
| Current Consumption |
Approx. 50 mA (typical) |
| Body Style |
Rectangular |
| Mounting Type |
Plug-In Base |
| Connection Method |
Screw Terminals |
| Features |
Mutual Interference Protection |
| Response Time |
Typically 20–30 ms |
| Enclosure Rating |
NEMA and IP Rated (varies by mounting) |
| Housing Material |
Industrial-grade plastic or die-cast alloy |
| Operating Temperature Range |
-10°C to +55°C |
| Compliance |
CE Certified |
| Weight |
Approx. 0.25 kg (0.55 lb) |
Information About E3B2-R7M4-US
The E3B2-R7M4-US belongs to Omron’s E3B2 Series of photoelectric sensors, engineered for stability, long sensing distances, and easy installation. It utilizes a non-polarized retroreflective infrared sensing method, eliminating issues with light polarization while maintaining strong signal detection. The sensor operates on universal AC/DC voltage input and features an SPDT relay output for flexible control logic integration. Built in a durable rectangular housing with screw terminal connections, it offers mutual interference protection and dependable performance even in high-noise environments.
Key Features:
- Long-Range Detection: Detects targets up to 7 meters away for extended reach applications.
- Non-Polarized Retroreflective Design: Ensures accurate detection regardless of light polarization or object orientation.
- Infrared LED Source: Pulse-modulated for stable sensing and resistance to ambient light interference.
- Universal Power Supply: Operates on both AC and DC voltages for flexible system compatibility.
- SPDT Relay Output: Supports direct switching in control or signaling circuits.
- Plug-In Base Mounting: Simplifies installation, replacement, and maintenance.
- Mutual Interference Protection: Allows multiple sensors to operate closely without signal cross-talk.
- Durable Construction: Built for reliability in industrial environments with consistent, long-term operation.
The E3B2-R7M4-US delivers the reliability and precision required for object detection, positioning, and automation safety in industrial control systems.
