For design engineers integrating the sensor into equipment or production lines, precise mechanical drawings and material specifications are essential. This article provides key engineering reference data for the DAPPRA DPR-1440-NPN-NC Safety Light Curtain Area Sensor to support your design and integration work.

1. Core Dimensions and Tolerances

The following dimensional data, based on product drawings, is suitable for initial layout and installation design:

• General Tolerances: Linear dimensions typically follow ±0.5 mm (≤500 mm) and ±1.0 mm (>500 mm). Angular tolerance is generally ±0.5°.
• Optical Characteristics: The beam diameter is approximately 8 mm.

2. Material and Surface Finish

Understanding the materials helps assess environmental suitability and mounting methods:

• Main Housing: Aluminum alloy (6061), with black anodized surface treatment.
• End Caps: ABS engineering plastic.
• Optical Window: PMMA (Acrylic) with an anti-reflective coating.
• Connector: M12 metal connector, nickel-plated.

3. Mounting Bracket Reference (Optional Accessory)

If optional mounting brackets are used, their typical specifications are:

4. Design and Integration Points

• Alignment Requirement: The optical axis parallelism between the emitter and receiver must be within ±2° to ensure reliable reception.
• Mounting Orientation: Vertical and horizontal mounting are supported, but the emitter and receiver must remain parallel to each other.
• Clearance: Maintain a minimum of 50 mm clearance around the sensor housing for ventilation and maintenance access.
• Weight: Each unit (emitter or receiver) weighs approximately 0.6 kg, totaling about 1.2 kg for the pair. This load must be considered when designing mounting brackets.

Accurate engineering data is the foundation for correct installation and long-term operational stability of the sensor.