How To Choose Industrial DPM Code And Laser Code Scanner

When choosing industrial DPM code (direct part mark code) and laser code scanner, we need to make a comprehensive evaluation based on the actual use environment, combined with barcode characteristics and functional requirements.

Clarify core performance requirements

1. Accuracy and resolution

Ø   DPM code characteristics: Laser etched codes on metal surfaces are easy to reflect and have low contrast, and the scanner needs to have a minimum reading accuracy of ≥3mil.

Ø   Pixel requirements: High-resolution CMOS sensors (such as 1280×960 pixels) can capture subtle code points, which is better than 300,000-pixel devices.

2. Durability and life

2. Light source technology

Ø   Multi-light source system: For reflective materials (such as beer bottle caps, PCB boards), choose devices that support intelligent switching of red/white/blue light sources, which can adapt to background colors and materials.

Ø   Anti-reflective design: The red ring light source penetrates the metal reflective layer, and the blue light source improves the recognition rate of low-contrast codes.

3. Environmental adaptability

Ø   Protection level: Oily and dusty workshops require IP65 or above protection, and outdoor or humid environments require IP67.

Ø   Anti-static requirements: When scanning PCB boards in the electronic manufacturing industry, choose an ESD anti-static shell (such as unitech MS852 DPM ESD), and the surface resistance value must be 10⁵~10⁹Ω/□.

Ø   Temperature range: A wide temperature design is required for low-temperature workshops (-20℃) or high-temperature environments (+60℃).

In addition, we also need to consider industrial durability design, such as drop resistance test, protection level, etc., whether to use corrosion-resistant shell, whether it is a wide temperature design, etc.

Dewo has developed and designed a "light source anti-reflection + AI algorithm + industrial protection" scanner for industrial DPM codes and laser codes. It uses millions of pixels, supports multi-light source switching, and matches special designs in special scenarios such as anti-static and wide temperature. Contact us for more product information.