During technical comparisons, WLG4S-3K2232 appears alongside Sick Laser Sensor, Sick Gtb6 P1211 and P&F Photoelectric Sensor so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Sick WLG4S-3K2232 Photoelectric Sensor
The Sick WLG4S-3K2232 Photoelectric Sensor offers a Rectangular design, 650 nm sensing range, PinPoint LED light source, PNP output, and β40 Β°C ... +60 Β°C connection. Manufactured by Sick under the Sick Photoelectric Sensor category, this model belongs to the WL Series.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WLG4S-3K2232 |
Sick WLG4S-3K2232 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range max. | 0.01 m ... 5 m |
| Sensing range | 0 m ... 3 m |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Γ 45 mm (1.5 m) |
| Wave length | 650 nm |
| Adjustment | Single teach-in button |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 20 mA 3) |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | Light/dark switching |
| Output current Imax. | β€ 100 mA |
| Response time | < 0.5 ms |
| Switching frequency | 1,000 Hz |
| Housing | Rectangular |
| Design detail | Slim |
| Dimensions (W x H x D) | 12.2 mm x 41.8 mm x 17.3 mm |
| Connection | Male connector M8, 4-pin |
| Housing material | Plastic, ABS |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67, IP66 |
| Ambient operating temperature | β40 Β°C ... +60 Β°C |
| Ambient temperature, storage | β40 Β°C ... +75 Β°C |
| Weight | 30 g |
The WLG4S-3K2232 Photoelectric Sensor from Sick employs a retro-reflective sensing principle with advanced autocollimation, enabling it to detect objects with high accuracy even in reflective or low-contrast backgrounds. This model features a sensing range of 0 to 3 meters, extendable to 5 meters with ideal reflector placement. It uses a PinPoint LED that emits visible red light at 650 nm and produces a Γ 45 mm spot at 1.5 meters, making optical alignment straightforward for engineers. The response time is under 0.5 ms, and it supports a fast 1,000 Hz switching frequencyβperfect for applications involving moving targets.
This sensor operates on a standard 10β30 V DC supply and consumes only 20 mA, ensuring energy efficiency in large-scale installations. It offers a PNP digital output and supports light/dark switching for flexible programming into control systems. Its slim rectangular housing made from durable ABS plastic, along with a robust PMMA front screen, is rated to IP66 and IP67, making it suitable for dusty, humid, and outdoor installations. Measuring just 12.2 mm Γ 41.8 mm Γ 17.3 mm and featuring a secure M8 4-pin male connector, it easily fits into modern machines, control panels, and robotic arms without additional space requirements.
The Sick WLG4S-3K2232 is a versatile sensor used across industries to detect transparent containers on filling lines, confirm presence of products on conveyors, or ensure proper alignment in labelling and packaging stations. Its zero-adjustment setup and quick teach-in functionality simplify commissioning for junior technicians, while its stable output and repeatable detection cycles satisfy the requirements of experienced automation engineers. In educational contexts, this sensor demonstrates key industrial principles like optical reflection, response timing, and sensor logic integration. Whether for OEMs or factory upgrade projects, this Photoelectric Sensor from Sick delivers trusted performance, durability, and precision in every cycle.

