Panasonic EX14APN Photoelectric Proximity Sensor (Light Barrier) — Diffuse, Normally ON, Sensing Distance 25 mm

Panasonic EX14APN is a compact photoelectric proximity sensor designed for short-range non-contact object detection. Using a diffuse detection principle and a Normally ON (light-ON) output behavior, this light barrier provides reliable presence sensing at a sensing distance of 25 mm. Its small form factor suits integration into automation, assembly, packaging and material handling systems where precise, close-range detection is required.

Advantages

The sensor offers a compact design that simplifies mounting in confined spaces and reduces installation complexity. Diffuse sensing makes the device tolerant of small misalignments and reflective surface variations without requiring a separate reflector. The Normally ON output behavior is suitable for systems that expect a light-activated signal state. The 25 mm sensing distance provides consistent detection for small parts and close-proximity applications while minimizing false triggers from distant objects.

Suitable for

• Short-range presence detection of small components on assembly lines
• Part detection in packaging machinery
• Object counting and position verification in material handling
• End-of-travel sensing in compact pneumatic or robotic fixtures

Key specifications

• Detection principle: diffuse reflection
• Output behavior: Normally ON (light-ON)
• Sensing distance: 25 mm
• Mounting: compact inline form factor suitable for constrained spaces
• Detection target: small objects and reflective surfaces within short range

How to use

Mount the sensor so its sensing face points toward the detection zone at an appropriate distance near 25 mm, ensuring the target surface falls within the diffuse reflection field. Align the sensor to minimize obstructions and avoid direct strong ambient light on the sensing area. Connect power and signal wiring according to the system wiring scheme and verify the Normally ON output state during setup. Adjust mounting position rather than sensor settings for optimal detection of specific part geometries and surface finishes.

Recommendations

For stable performance, install the sensor with a firm, vibration-free mount and ensure the sensing face is kept clean from dust and debris. When detecting low-reflectivity or irregular surfaces, test with representative parts and adjust the working distance and angle to improve detection reliability.