Omron E3Z-B61 2M Photoelectric Sensor
Omron E3Z-B61 2M is a retro-reflective photoelectric sensor without an MSR function for sensing targets from 80 to 500 mm when used with the E39-R1S reflector. Its 660 nm red LED establishes the optical path, while the NPN output transfers the switching state to compatible industrial control circuitry. Light-ON or Dark-ON operation can be selected to match the required control logic. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable. Response time is specified at 1 ms maximum, and a one-turn adjuster supports sensitivity setting. Within the E3Z Series, the E3Z-B61 2M provides the 2 m cable version. Related retro-reflective NPN sensors can be reviewed across Omron Automation Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-B61 2M |
Omron E3Z-B61 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective without MSR function |
| Sensing Distance | When using the E39-R1S: 80 mm to 500 mm |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired, Cable Length 2M |
| Current Consumption | 30 mA max. |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max |
| Ambient Temperature Range | Operating: −25 to 55°C, Some connector models: −40°C to 55°C * (with no icing or condensation) Storage: −40 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 1,000 VAC, 50/60 Hz for 1 min |
| Vibration Resistance | Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500 m/s2 3 times each in X, Y, and Z directions |
| Protection Circuits | Reversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention, and Reversed output polarity protection |
| Degree Of Protection | IEC, IP67 |
| Material | Polybutylene terephthalate (PBT) |
| Material Lens | Denatured Polyarylate |
| Features | Transparent detection |
| Weight | Approx. 65 g |
The Omron E3Z-B61 2M Photoelectric Sensor uses retro-reflective sensing without an MSR function across a range of 80 to 500 mm when used with the E39-R1S reflector. A 660 nm red LED establishes the optical path, while the NPN output transfers the switching state to compatible control circuitry. Light-ON or Dark-ON operation can be selected according to the required machine logic. The sensor operates from 12 to 24 VDC and connects through a 2 m pre-wired cable. Response time is specified at 1 ms maximum, current consumption is 30 mA maximum, and a one-turn adjuster supports sensitivity setting. Ambient-light resistance is listed at 3,000 lx under incandescent light and 10,000 lx under sunlight.
For an Omron retro-reflective sensor requiring NPN output, selectable switching logic, and 2 m fixed-cable wiring, the relevant model is the E3Z-B61. Operating temperature extends from -25 to 55°C, while storage covers -40 to 70°C without icing or condensation. Reverse supply polarity, output short-circuit, mutual-interference, and reversed-output polarity protection are listed. PBT and denatured polyarylate are specified as construction materials. This configuration also suits searches for an Omron 500 mm photoelectric sensor and Omron NPN reflector sensor. For the same B61 configuration with an extended 5 m pre-wired cable, see the E3Z-B61 5M. The longer cable provides additional routing distance between the sensing point and associated control equipment.
