Sick VTF18-3P5812 Photoelectric proximity sensor PNP

Industrial proximity sensing

The Sick VTF18-3P5812 is a cylindrical photoelectric proximity sensor designed for automation tasks that require non-contact object detection. Its PNP dark-switching output and 10–30 V DC supply make it compatible with standard industrial control systems. The angled light emission and potentiometer adjustment allow precise alignment on conveyor lines or packaging equipment. An IP67 enclosure rating ensures reliable operation in dusty or wet environments.

Cable and adjustment

A fixed 2 m PVC cable with 0.14 mm² conductors eliminates the need for separate connectors and simplifies installation in tight cable trays. The built-in potentiometer lets technicians set the switching point without software or teach-in procedures, reducing commissioning time. Infrared LED illumination provides consistent detection across varying surface colours while remaining invisible to operators. The plastic housing and PMMA optics resist common industrial cleaning agents.

Range and limits

The sensor detects objects from 0 to 45 mm with a maximum sensing range of 50 mm, suitable for short-range presence verification on assembly fixtures. Response time of 2 ms supports moderate line speeds but may limit use on very high-speed sorting conveyors. Operating temperature span of –25 °C to +70 °C covers most indoor and sheltered outdoor applications. Buyers needing longer detection distances or faster switching should consider alternative sensing principles.