Sick GRL18-P2437 Photoelectric Sensor
Sick GRL18-P2437 photoelectric sensor provides retro-reflective dual-lens sensing with 6 m range PNP output IP67 enclosure for industrial automation. This model uses visible red PinPoint LED at 650 nm wavelength, features an M18 cylindrical housing, supports potentiometer adjustment, 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 | GRL18-P2437 |
Sick GRL18-P2437 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 73.5 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 |
| 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 | Male connector M12, 4-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 GRL18-P2437 Sick M18 Cylindrical Photoelectric Sensor is a retro-reflective photoelectric sensor designed for reliable object detection in industrial automation systems. The GRL18-P2437 offers a defined 0.06–6 m sensing range, stable PNP switching output, and dual-lens optical design for consistent detection performance. It is part of the GR Series, widely used in automated machinery where compact cylindrical sensors are required.
In practical applications, the GRL18-P2437 Sick M18 Cylindrical Photoelectric Sensor is used on conveyors, packaging machines, assembly lines, and material handling systems. Retro-reflective sensing enables dependable detection of objects regardless of surface variations. The <500 µs response time and 1,000 Hz switching frequency support fast-moving processes, while the M18 threaded housing allows straightforward installation in confined spaces.
The GRL18-P2437 from Sick is engineered for dependable industrial operation with an IP67-rated enclosure and robust cylindrical construction. Its optical stability, controlled current consumption, and compatibility within the GR Series make it suitable for long-term use in automation environments. The GRL18-P2437 supports consistent photoelectric sensing performance where accuracy and mechanical reliability are required.
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