OMRON E3ZM-B81T 2M Photoelectric Sensor Background Suppression NPN 20-100mm

The OMRON E3ZM-B81T 2M is a high-performance photoelectric sensor with background suppression, designed for reliable object detection in industrial automation. This sensor features a red LED light source and offers an adjustable sensing distance from 20 to 100 mm, making it suitable for a wide range of applications including packaging, material handling, and assembly lines.

Advantages

Background suppression technology ensures accurate detection regardless of background color or reflectivity. The NPN open collector output with selectable Light-ON/Dark-ON modes provides flexibility for various control systems. With IP67 and IP69K protection ratings, this sensor is resistant to dust, water, and high-pressure washdown, ensuring durability in harsh environments.

Suitable for

• Automated production lines
• Packaging machinery
• Material handling systems
• Food and beverage processing
• Pharmaceutical manufacturing

Key specifications

• Sensing Method: Background Suppression (BGS)
• Sensing Distance: 20 to 100 mm (adjustable)
• Output Type: NPN Open Collector
• Output Configuration: Light-ON / Dark-ON selectable
• Power Supply Voltage: 10 - 30 VDC
• Current Consumption: Max. 20 mA
• Response Time: Max. 1 ms
• Light Source: Red LED (680 nm)
• Protection Rating: IP67, IP69K
• Connection Type: Pre-wired Cable (2 meters)
• Housing Material: PBT
• Lens Material: PMMA
• Operating Temperature: -25 to +55 °C
• Indicators: Output (Orange LED), Stability (Green LED)
• Adjustment: Sensitivity Adjuster (1-turn trimmer)
• Switching Frequency: 500 Hz
• Mounting Type: Screw Mount

Recommendations

For optimal performance, ensure the sensor is mounted securely and the sensing distance is adjusted according to the target object. The pre-wired cable simplifies installation, and the robust housing withstands demanding industrial conditions. This sensor is an excellent choice for applications requiring precise detection with background suppression.