Omron E3T-SL22 5M Ultracompact Photoelectric Sensor
Omron E3T-SL22 5M is an ultrathin limited-reflective photoelectric sensor designed for short-range object sensing from 5 to 30 mm. A red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. The NPN output transfers the switching state to compatible PLC inputs and control circuits, and Dark-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and includes a 5 m pre-wired cable for extended wiring. Within the E3T Series, the E3T-SL22 5M provides the long-cable Dark-ON option. Related limited-reflective sensors are available across Omron Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL22 5M |
Omron E3T-SL22 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Limited Reflective |
| Shape | Square type |
| Sensing Distance | 5 to 30 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 5m |
| Current Consumption | 20 mA max |
| Light Source (Wavelength) | Red LED |
| Operation Mode | Dark-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 20g |
The Omron E3T-SL22 5M Photoelectric Sensor uses limited-reflective sensing across a 5 to 30 mm range in an ultrathin square format. A red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. Its NPN output communicates the switching state to compatible PLC inputs and machine-control circuitry, and Dark-ON operation defines the specified output behavior. The sensor operates from 12 to 24 VDC and consumes up to 20 mA. Operate or reset time is specified at 1 ms max. A 5 m pre-wired cable provides additional wiring length between the sensing point and control equipment.
For an Omron Dark ON limited reflective sensor requiring NPN output and 5 to 30 mm sensing, the corresponding model is the E3T-SL22. Polybutylene terephthalate is listed for the housing, while denatured polyarylate is specified for the optical section. IP67 protection is stated, and approximate weight is 20 g. Its configuration also suits searches for an Omron 30 mm NPN sensor and Omron long cable reflective sensor. The 1 ms response supports short-range part presence and position confirmation in compact automated equipment. For the related 2 m cable version using the same NPN output and Dark-ON logic, see E3T-SL22 2M.
