Omron E3T-SL22M 2M Ultracompact Photoelectric Sensor
Omron E3T-SL22M 2M is an ultracompact limited-reflective photoelectric sensor designed for object sensing across a 5 to 30 mm range. Its red LED provides the optical source, while the built-in amplifier processes light returned from the target. An NPN output communicates the switching state to compatible machine-control circuitry, and Dark-ON operation defines the specified output behavior. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and includes a 2 m pre-wired cable. Response time is specified at 1 ms max. Within the E3T Series, the E3T-SL22M 2M provides the compact NPN configuration. Related short-range reflective sensors can be reviewed across Omron Sensor Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL22M 2M |
Omron E3T-SL22M 2M 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 2m |
| 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-SL22M 2M Photoelectric Sensor uses limited-reflective sensing across a short 5 to 30 mm range in an ultracompact square body. Its 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 industrial control circuits, and Dark-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC and consumes up to 20 mA. Operate or reset time is 1 ms max., and a 2 m pre-wired cable provides direct electrical connection. The compact body supports close-position sensing where available mounting area is restricted.
For an Omron limited reflective NPN sensor requiring Dark-ON operation and 5 to 30 mm sensing, the relevant model is the E3T-SL22M. Polybutylene terephthalate is listed for the housing and denatured polyarylate for the optical section. IP67 protection is specified, while approximate weight is 20 g. This specification also matches searches for an Omron compact Dark ON sensor and Omron short range NPN sensor. Its 1 ms response supports part presence, edge confirmation, and close-range position sensing in compact equipment. For the related 5 m cable version with the same sensing range and logic, see E3T-SL22M 5M.
