E3S-CR11

Overview of Omron E3S-CR11

The Omron E3S-CR11 is an oil-resistant, long-range photoelectric sensor with a metal housing, designed for reliable object detection in harsh industrial environments. It uses a retro-reflective sensing method with a built-in MSR (Mutual Interference Prevention) function to prevent interference from other sensors. The sensor has a sensing distance of up to 3 meters using the E39-R1 reflector and features selectable NPN/PNP open collector output and Light-ON/Dark-ON operation modes.

Key Features of Omron E3S-CR11

• Sensing Method: Retro-reflective with MSR function
• Sensing Distance: Up to 3 meters (with E39-R1 reflector)
• Light Source: Red LED (660 nm)
• Power Supply Voltage: 10 to 30 VDC (including 10% ripple)
• Current Consumption: Max 40 mA
• Output Type: NPN/PNP open collector selectable
• Load Voltage: Max 30 VDC
• Load Current: Max 100 mA
• Residual Voltage: NPN output: 1.2 V max, PNP output: 2.0 V max
• Operation Mode: Light-ON or Dark-ON selectable
• Response Time: Operate or reset: 1 ms max
• Adjustment: Single-turn sensitivity adjuster
• Ambient Illumination: Incandescent lamp: 5,000 lx max, Sunlight: 10,000 lx max
• Ambient Temperature Range: -25°C to 55°C (no freezing/condensation)
• Ambient Humidity Range: Operating 35% to 85% (no condensation)
• Protection: IEC IP67, Oil-resistant (NEMA 6P indoors)
• Connection Method: Pre-wired cable (2 m standard)
• Materials: Zinc die-cast case, polyether sulfone cover, methacrylic resin lens, SUS304 stainless steel mounting bracket
• Weight: Approx. 160 g (packaged)
• Included Accessories: Mounting bracket with screws, adjustment screwdriver, reflector, instruction manual

Technical Specifications of Omron E3S-CR11

Applications / Use Case

The Omron E3S-CR11 is ideal for object detection in environments with oil contamination, dirt, or harsh industrial conditions. Common uses include packaging lines, metal processing, and manufacturing machinery where reliable detection and resistance to environmental factors are critical.