Omron E3T-SL22 2M Ultracompact Photoelectric Sensor
Omron E3T-SL22 2M is an ultrathin limited-reflective photoelectric sensor designed for short-range object sensing from 5 to 30 mm. 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 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-SL22 2M provides the 30 mm Dark-ON NPN option. Related Dark-ON reflective sensors are available across Omron Sensing Range.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL22 2M |
Omron E3T-SL22 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-SL22 2M Photoelectric Sensor uses limited-reflective sensing across a short 5 to 30 mm range in an ultrathin square body. Its red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. The NPN output communicates the switching state to compatible PLC inputs and machine-control circuitry, and Dark-ON operation defines the specified output logic. The sensor operates from 12 to 24 VDC and consumes up to 20 mA. Operate or reset time is specified at 1 ms max., and a 2 m pre-wired cable provides direct electrical connection. The short sensing range supports close-position sensing where available mounting area is limited.
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 and approximate weight of 20 g are stated. Its specification also suits searches for an Omron 30 mm NPN sensor and Omron compact reflective sensor. The 1 ms response supports part presence and position confirmation in compact automated equipment. For the related Light-ON version using the same sensing range and output type, see E3T-SL21 2M.
