Omron E3S-AR36 Photoelectric Sensor
Omron E3S-AR36 is a PNP retro-reflective photoelectric sensor with an MSR function for object sensing across a distance of up to 2 m with the E39-R1 reflector. A 660 nm red LED provides the optical source, while the PNP output sends the switching state to compatible PLC inputs and machine-control circuitry. The sensor operates from 10 to 30 VDC and uses an M12 connector for detachable wiring. Light-ON or Dark-ON operation can be selected, while a two-turn endless adjuster supports sensitivity setup. Response time is specified at 0.5 ms and load current up to 100 mA. Within the E3S Series, the E3S-AR36 provides the PNP connector version. Explore PNP retro-reflective sensors across Omron Sensor Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-AR36 |
Omron E3S-AR36 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective Sensors |
| Sensing Distance | 2 m (100 mm) |
| Standard Sensing Object | Opaque: 75-mm dia. min. |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 10 to 30 VDC, including ripple (p-p) 10% |
| Output Configuration | PNP |
| Connection Method | Connector (M12) |
| Current Consumption | 30 mA max. (plus approx. 15 mA with turbo function) |
| Control Output | Load power supply voltage: 30 VDC max., Load current: 100 mA max. (residual voltage: 1 V max.) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | Operation or reset: 0.5 ms max. |
| Sensitivity Adjustment | Two-turn endless adjuster with an indicator |
| Ambient Illumination | Incandescent lamp: 5,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25°C to 55°C (with no icing or condensation) Storage: −40°C to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% (with no condensation) Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC between current-carrying parts and case |
| Dielectric Strength | 1,000 VAC, 50/60 Hz for 1 min. between current-carrying parts and case |
| Vibration Resistance | 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500m/s2, 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply reverse polarity protection, Output short-circuit protection, Mutual interference prevention |
| Degree Of Protection | IEC IP67; NEMA: 4X (indoors only) |
| Material | PBT, Denatured polyallylate, Stainless steel (SUS304) |
| Weight | Approx. 60 g |
The Omron E3S-AR36 Photoelectric Sensor uses retro-reflective sensing with an MSR function across a maximum distance of 2 m with the E39-R1 reflector. Its 660 nm red LED establishes the optical path, while the PNP output transfers the switching state to compatible PLC inputs and machine-control circuitry. The sensor operates from 10 to 30 VDC and uses an M12 connector for detachable electrical connection. Current consumption is specified at 30 mA maximum, with approximately 15 mA additional consumption when turbo mode is active. Load current is rated up to 100 mA with a maximum load supply voltage of 30 VDC. Light-ON or Dark-ON operation can be selected, while a two-turn endless adjuster supports sensitivity setting. Operation or reset time is specified at 0.5 ms maximum.
For an Omron PNP retro reflective photoelectric sensor requiring 2 m sensing, MSR, and M12 connection, the relevant model is the E3S-AR36. The stated target is an opaque object with a minimum diameter of 75 mm. Ambient-light resistance reaches 5,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -25 to 55°C, with storage from -40 to 70°C without icing or condensation. Power-supply reverse polarity, output short-circuit, and mutual-interference prevention are included. Its specification also aligns with searches for an Omron 2 m PNP sensor and Omron M12 retro reflective sensor. For an E3S NPN version with the same 2 m retro-reflective sensing range and M12 connection, see E3S-AR66.
