Sick GRL18S-P2338 Photoelectric Sensor
Sick GRL18S-P2338 photoelectric sensor is a radial retro-reflective dual lens model providing 6 m sensing range with PNP output. This sensor uses visible red PinPoint LED at 650 nm wavelength, features a Ø 175 mm light spot, supports 10–30 V DC supply, and switches at 1,000 Hz. It belongs to Sick sensing solutions, listed under Sick Photoelectric Sensors and the GR Series for industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Product | GRL18S-P2338 |
Sick GRL18S-P2338 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Dual lens |
| Dimensions (W x H x D) | 18 mm x 18 mm x 38.1 mm |
| Housing design (light emission) | Cylindrical |
| Thread diameter (housing) | M18 x 1 |
| Optical axis | Radial |
| Sensing range max. | 0.03 m ... 7.2 m |
| Sensing range | 0.06 m ... 6 m |
| Type of light | Visible red light |
| Light source | PinPoint LED |
| Light spot size (distance) | Ø 175 mm (7 m) |
| Wave length | 650 nm |
| Adjustment | None |
| Indication | LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 30 mA |
| Switching Output | PNP |
| Switching mode | Light switching |
| Signal voltage PNP HIGH/LOW | VS - (≤ 3 V) / approx. 0 V |
| Output current Imax. | ≤ 100 mA 3) |
| Response time | < 500 µs 4) |
| Switching frequency | 1,000 Hz 5) |
| Connection type | Connector M12, 3-pin |
| Protection class | III |
| Housing material | Plastic, ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Items supplied | Fastening nuts (2 x) |
| Ambient operating temperature | –25 °C ... +55 °C 9) |
| Ambient temperature, storage | –40 °C ... +70 °C |
The GRL18S-P2338 Sick Radial Retro-reflective Sensor is a photoelectric sensor designed for reliable object detection in industrial automation systems. The GRL18S-P2338 applies a dual-lens retro-reflective optical principle with a radial optical axis, supporting a 0.06–6 m sensing range and defined Ø 175 mm light spot. It operates with a PNP light-switching output, requires 10–30 V DC supply, and is enclosed in an IP67-rated M18 housing. This sensor is part of the GR Series used in factory automation.
In industrial environments, the GRL18S-P2338 Sick Radial Retro-reflective Sensor is used on conveyors, packaging equipment, automated assembly stations, and material handling systems. The radial optical axis enables flexible mounting in confined spaces. Its <500 µs response time and 1,000 Hz switching frequency support high-speed detection, while the ABS housing and M12 connector ensure stable operation under standard industrial conditions.
The GRL18S-P2338 from :contentReference[oaicite:0]{index=0} delivers consistent sensing performance through controlled optics, stable electrical characteristics, and defined mechanical construction. With radial retro-reflective sensing, fixed adjustment design, and IP67 enclosure protection, this photoelectric sensor is suitable for continuous industrial use. Its integration within the GR Series supports compatibility with common automation architectures, making the GRL18S-P2338 appropriate for industrial sensing applications.
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