Product Description

​The Omron E3Z-T81K-L is an oil-resistant, compact photoelectric sensor with a built-in amplifier, designed for through-beam detection applications requiring high-performance and durability. It features a sensing distance of up to 15 meters, utilizing an infrared LED light source (870 nm). The sensor operates on a 12 to 24 VDC power supply and offers a PNP open collector output with a maximum load capacity of 100 mA. Its compact plastic housing ensures reliable operation even in environments with exposure to oil. ​

Technical Specifications

• Sensing Method: Through-beam​
• Digi-Key Media
• +1
• IndMall
• +1
• Sensing Distance: Up to 15 meters​
• Omron
• Light Source: Infrared LED (870 nm)​
• Farnell
• +2
• Omron
• +2
• All World Machinery
• +2
• Housing Material: Polybutylene terephthalate (PBT)​
• Omron
• Lens Material: Denatured Polyarylate​
• Omron
• Connection Method: Pre-wired (2 meters)​
• Mouser
• +7
• Omron
• +7
• Farnell
• +7
• Power Supply Voltage: 12 to 24 VDC ±10% (ripple (p-p) 10% max.)​
• Omron
• Current Consumption:
• Emitter: 15 mA max.​
• Omron
• Receiver: 20 mA max.​
• Control Output: PNP open collector​
• Omron
• Maximum Load Voltage: 26.4 VDC​
• Omron
• Maximum Load Current: 100 mA​
• Omron
• +1
• Octopart
• +1
• Residual Voltage:
• 1 V max. (Load current less than 10 mA)
• 2 V max. (Load current 10 to 100 mA)
• Operation Mode: Light-ON/Dark-ON selectable​
• Omron
• Response Time: Operate or reset: 1 ms max.​
• Octopart
• +5
• Omron
• +5
• IndMall
• +5
• Sensitivity Setting: Single-turn adjustment​
• Omron
• Ambient Illuminance Limits:
• Incandescent Lamp: 3,000 lx max.​
• Omron
• +1
• All World Machinery
• +1
• Sunlight: 10,000 lx max.​
• Operating Temperature Range: -25 to 55°C (with no icing)​
• Omron
• Degree of Protection: IP67 (IEC)​
• Oil Resistance: Yes (excluding cables and connectors)​
• Omron
• +1
• Digi-Key Media
• +1
• Indicators:
• Operation Indicator: Orange​
• Octopart
• Stability Indicator: Green​
• Farnell
• +7
• Octopart
• +7
• Digi-Key Media
• +7
• Power Indicator: Orange​
• IndMall
• +7
• Octopart
• +7
• Mouser
• +7
• Weight: Approximately 120 grams​