Sick GRL18S-N1131V Photoelectric Sensor
Sick GRL18S-N1131V photoelectric sensor delivers retro-reflective dual lens detection with 6 m range NPN output IP69K protection for industry. This Sick Red Light Photoelectric Sensor uses visible red PinPoint LED at 650 nm wavelength, operates on 10–30 V DC, and switches at 1,000 Hz for reliable detection. It belongs to Sick sensing solutions, listed under Sick Photoelectric Sensors and the GR Series used in industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Product | GRL18S-N1131V |
Sick GRL18S-N1131V 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 55.9 mm |
| Housing design (light emission) | Cylindrical |
| Thread diameter (housing) | M18 x 1 |
| Optical axis | Axial |
| 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 | NPN |
| Switching mode | Light/dark switching 3) |
| Signal voltage PNP HIGH/LOW | Approx. VS / ≤ 3 V |
| Output current Imax. | ≤ 100 mA 4) |
| Response time | < 500 µs 5) |
| Switching frequency | 1,000 Hz 6) |
| Connection type | Cable, 4-wire, 2 m 7) |
| Protection class | III |
| Housing material | Stainless steel, Stainless steel V4A (1.4404, 316L) |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67, IP68 1, IP69K 1 |
| Items supplied | Fastening nuts (2 x) |
| Ambient operating temperature | –25 °C ... +55 °C 13) |
| Ambient temperature, storage | –30 °C ... +75 °C |
The GRL18S-N1131V Sick Red Light Photoelectric Sensor is a retro-reflective sensor designed for stable object detection in industrial environments. The GRL18S-N1131V Sick Red Light Photoelectric Sensor provides a 0.06–6 m sensing range, NPN switching output, and a defined red light beam using PinPoint LED technology. As part of the GR Series, it is applied in industrial automation where consistent sensing and robust construction are required.
In practical use, the GRL18S-N1131V is installed on conveyors, packaging systems, automated assembly lines, and material handling equipment. Retro-reflective dual lens sensing allows reliable detection even with varying target surfaces. Fast response times and 1,000 Hz switching frequency support high-speed processes, while the stainless-steel housing ensures durability in washdown, food, and harsh industrial conditions.
The GRL18S-N1131V from Sick is engineered for dependable long-term operation reminding industrial buyers of Sick sensor reliability. With IP67, IP68, and IP69K enclosure ratings, controlled current consumption, and stable signal behavior, it fits demanding automation systems. As a GR Series photoelectric sensor, the GRL18S-N1131V maintains consistent performance and supports precise red light detection across industrial automation applications.
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