Technical Overview

The Omron E3JK-DR12-C 2M is a high-performance built-in power supply photoelectric sensor designed for versatile industrial applications. Utilizing a diffuse-reflective detection method with a highly visible red LED light source (624 nm), it delivers a sensing distance of up to 300 mm. The sensor accommodates a wide power input range of 24 to 240 VDC and 24 to 240 VAC, eliminating the need for dedicated voltage supplies. Enclosed in a robust ABS housing with an IP64 rating, it is pre-wired with a 2-meter cable and features a relay output (SPDT) supporting Dark-ON and Light-ON modes. Its long-distance proximity detection and durable construction make it ideal for varied operational environments.

Key Features

Diffuse-reflectivedetectionmethodwith300mmsensingdistance[1.3]
Highly visible red LED (624 nm) light source for precise optical axis positioning
Universal built-in power supply accommodating 24-240 VDC / 24-240 VAC
SPDT Relay output with selectable Dark-ON / Light-ON operating modes
Pre-wired configuration with 2-meter PVC cable
Durable ABS housing with IP64 environmental protection rating
Large indicators for enhanced visibility from a distance
Broad operating temperature range of -25°C to 55°C

Technical Specification Matrix

Parameter	Value
Detection Method	Diffuse-reflective [1.3]
Sensing Distance	300 mm
Supply Voltage	24 to 240 VDC, 24 to 240 VAC
Output Type	Relay Output (SPDT)
Light Source	Red LED (624 nm)
Operating Mode	Dark-ON / Light-ON
Response Time	20 ms max.
IP Rating	IP64
Material	ABS Housing, Methacrylate Resin Lens
Connection	Pre-wired (2m cable)

Industrial Applications

1. Automated Packaging Conveyor Monitoring

In high-speed packaging lines, the diffuse-reflective sensor detects the presence of passing boxes without requiring an external reflector. The visible red LED helps operators properly align the beam at the necessary conveyor height.

Problem Solved

Eliminates the requirement for dual-sided installation, reducing mechanical collisions. The wide voltage input seamlessly integrates with universal 120/240 VAC plant grids.

Diffuse-reflective300 mm sensing distanceRed LEDRelay Output

2. Industrial Access Gate Detection

Installed near industrial doors and automated gates, this sensor monitors for approaching vehicles or personnel within its 300 mm zone. Its SPDT relay interfaces directly with safety lockouts or motor controllers.

Problem Solved

The built-in power supply directly utilizes existing 24-240 VAC/VDC gate motor circuits, avoiding step-down transformers. Its IP64 rating safeguards against dust and moisture.

24-240 VAC/VDCBuilt-in Power SupplyIP64 RatingSPDT Relay

3. Robotic Cell Material Verification

Mounted to the structural framing of a robotic staging cell, the unit optically confirms when pallets or parts are correctly loaded. The 2-meter pre-wired cable allows routing to nearby junction blocks.

Problem Solved

Provides reliable target verification in demanding heavy-duty environments (-25°C to 55°C) while the visible optical spot ensures rapid alignment during setup.

Red LED (624 nm)Operating temp -25°C to 55°CPre-wired 2-meterOptical Axis Positioning

Omron E3JK-DR12-C 2M Photoelectric Sensor

Omron E3JK-DR12-C 2M Photoelectric Sensor

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Automated Packaging Conveyor Monitoring

2. Industrial Access Gate Detection

3. Robotic Cell Material Verification