Product Description

​The Omron E3ZM-R81 is a compact retroreflective photoelectric sensor housed in durable stainless steel, designed for reliable object detection in industrial environments. It offers a sensing distance ranging from 100 mm to 4 meters when used with the E39-R1S reflector, providing flexibility for various applications. The sensor features a PNP output with selectable Light-ON/Dark-ON modes, operates over a supply voltage of 10 to 30 VDC, and consumes a maximum current of 25 mA. Its robust construction ensures protection against dust and water ingress, meeting IP67 and IP69K standards, making it suitable for demanding conditions.

Technical Specifications

• Sensing Method: Retro-reflective with M.S.R. function​
• TME
• +3
• Omron
• +3
• Omron
• +3
• Sensing Distance: 100 mm to 4 meters (using E39-R1S reflector)​
• DigiKey
• +4
• Omron
• +4
• fa.omron.co.jp
• +4
• Light Source: Red LED (660 nm)​
• fa.omron.co.jp
• +2
• Omron
• +2
• Omron
• +2
• Output Configuration: PNP open collector​
• Omron
• Operation Mode: Selectable Light-ON/Dark-ON​
• Omron Automation
• +4
• Omron
• +4
• Omron
• +4
• Supply Voltage: 10 to 30 VDC (including 10% ripple)​
• Omron
• Current Consumption: 25 mA maximum​
• Omron
• +1
• Omron
• +1
• Response Time: 1 ms maximum (operate or reset)​
• Omron
• +1
• Omron
• +1
• Sensitivity Adjustment: Single-turn potentiometer​
• Omron
• +1
• DigiKey
• +1
• Ambient Light Immunity: Up to 3,000 lx (incandescent) and 10,000 lx (sunlight)​
• fa.omron.co.jp
• +2
• Omron
• +2
• Omron
• +2
• Operating Temperature: -25°C to 55°C (with no freezing or condensation)​
• DigiKey
• +3
• Omron
• +3
• Omron
• +3
• Storage Temperature: -40°C to 70°C (with no freezing or condensation)​
• Omron
• +2
• Omron
• +2
• fa.omron.co.jp
• +2
• Operating Humidity: 35% to 85% (with no condensation)​
• Omron
• +1
• Omron
• +1
• Storage Humidity: 35% to 95% (with no condensation)​
• Insulation Resistance: 20 MΩ minimum at 500 VDC​
• Omron
• +1
• Omron
• +1
• Dielectric Strength: 1,000 VAC for 1 minute​
• DigiKey
• +5
• fa.omron.co.jp
• +5
• Omron
• +5
• Vibration Resistance: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions​
• Omron
• +1
• Omron
• +1
• Shock Resistance: 500 m/s², 3 times each in X, Y, and Z directions​
• fa.omron.co.jp
• +2
• Omron
• +2
• Omron
• +2
• Degree of Protection: IP67 and IP69K​
• DigiKey
• Connection Method: Pre-wired with 2-meter cable​
• Indicators: Operation indicator (yellow) and stability indicator (green)​
• Omron
• +1
• Omron
• +1
• Weight: Approximately 90 g (excluding connectors)​
• Omron
• +2
• fa.omron.co.jp
• +2
• Omron
• +2
• Housing Material: SUS316L stainless steel​
• fa.omron.co.jp
• +2
• Omron
• +2
• Omron
• +2
• Lens Material: Methacrylate resin​
• Omron
• Display Material: Polyetherimide (PEI)​
• Omron
• +1
• Omron
• +1
• Adjustment and Switch Materials: Polyetheretherketone (PEEK)​
• Omron
• Seal Material: