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+--- Thread: Can load cells be damaged by lightning even when not directly struck? (/thread-49554.html)
Can load cells be damaged by lightning even when not directly struck? - Joseph Liemandt - 10-09-2025
Yes, electromagnetic pulse (EMP) from nearby lightning strikes can damage load cell electronics without direct contact. The rapidly changing magnetic field creates voltage surges in nearby conductors, including load cell cables. These surges can burn out the delicate strain gauge elements or damage the signal conditioning electronics. This is particularly problematic for truck scales and outdoor weighing systems. Professional installations use surge protectors specifically designed for low-voltage measurement circuits, not just standard electrical surge protectors.
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