Product Overview: Festo 38432 SME-8-K-LED-24
The Festo 38432, also known by the technical designation SME-8-K-LED-24, is a magnetic reed-type proximity sensor specifically designed for position sensing in pneumatic cylinders featuring a T-slot. This sensor is a cornerstone of Festo’s automation lineup, providing a reliable and cost-effective way to detect the end-position or intermediate positions of a piston. It is widely used across various industries, from basic assembly lines to complex robotic end-effectors.
Technical Specifications and Performance
The SME-8-K-LED-24 operates on a magnetic reed contact principle, making it compatible with both AC and DC voltages. One of its standout features is the integrated yellow LED, which provides immediate visual feedback on the switching status, greatly simplifying the commissioning and troubleshooting phases. The sensor is supplied with a 2.5-meter long cable, ensuring ample reach within typical control cabinet layouts.
Key Characteristics
- Part Number: 38432.
- Design: For T-slot (Integrated into the cylinder profile).
- Switching Element: Reed contact.
- Operating Voltage: 10V to 30V AC/DC.
- Switching Output: Contact-based, 2-wire.
- Cable Length: 2.5 meters.
- Protection Class: IP65 / IP67 (Dust-tight and water-resistant).
- Ambient Temperature: -40°C to +70°C.
Industrial Reliability and Mounting
Installation of the 38432 is remarkably straightforward; the sensor is simply inserted into the T-slot from above and secured with a screw. Once fixed, it remains flush with the cylinder profile, preventing accidental damage from external mechanical forces. Its robust construction allows it to function in extreme temperature ranges, and the high-quality cable sheath ensures resistance to typical industrial oils and coolants.
| Feature | Detail |
| Reproducibility | +/- 0.1 mm |
| Switching Time | Max. 0.5 ms |
| Material Information | PA (Polyamide), high-alloy steel |
Maintenance and Safety
Reed sensors like the SME-8-K-LED-24 are known for their longevity. However, to maintain peak performance, it is recommended to ensure that the sensor is not exposed to strong external magnetic fields that could interfere with the internal reed contact. Periodic cleaning of the T-slot to remove metal shavings will also ensure consistent switching accuracy.
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