Sick GRL18SG-P1137 Photoelectric Sensor
Sick GRL18SG-P1137 photoelectric sensor is a dual lens retro-reflective device delivering 6 m sensing range with PNP output IP67. This model operates using visible red PinPoint LED at 650 nm wavelength, produces 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 | GRL18SG-P1137 |
Sick GRL18SG-P1137 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 | 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 | Potentiometer, 270° |
| 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/dark 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 | Cable, 4-wire, 2 m |
| 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 GRL18SG-P1137 Sick 6m Dual lens Photoelectric Sensor is a retro-reflective photoelectric sensor designed for consistent object detection in industrial automation systems. The GRL18SG-P1137 uses a dual-lens optical principle with visible red PinPoint LED, supporting a 0.06–6 m sensing range and defined optical alignment. It provides a PNP switching output, operates on 10–30 V DC supply, and is enclosed in an IP67-rated M18 housing. This sensor belongs to the GR Series used in factory automation environments.
In industrial applications, the GRL18SG-P1137 Sick 6m Dual lens Photoelectric Sensor is installed on conveyors, packaging machines, automated assembly stations, and material handling lines. The retro-reflective sensing method supports reliable detection with reflectors in controlled layouts. Its <500 µs response time and 1,000 Hz switching frequency allow stable operation in high-speed processes, while the ABS housing and fixed cable connection ensure durability under industrial conditions.
The GRL18SG-P1137 from :contentReference[oaicite:0]{index=0} delivers predictable sensing performance through defined optics, stable electrical characteristics, and standardized mechanical construction. With dual-lens retro-reflective sensing, potentiometer-based adjustment, and IP67 enclosure protection, this photoelectric sensor is suitable for continuous industrial use. Its integration within the GR Series ensures compatibility with common automation architectures, making the GRL18SG-P1137 appropriate for industrial photoelectric sensing requirements.
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