How to control the EMC consistency of mass-produced intelligent low-voltage monitoring units?

Mass production EMC consistency control requires standardized production and inspection.

Design standardization includes: fixed PCB layout, component selection, and grounding methods. Material control involves specifying the brand and model of key EMC components and conducting incoming inspection.

Production processes include: controlled soldering temperature profiles; controlled shielding gasket installation pressure; and controlled screw torque.

Inspection involves: random sampling of each batch for simplified EMC testing.

Through these controls, the EMC performance dispersion of mass-produced products is less than 3dB, ensuring that each product meets certification requirements.