Question

What is the maximum allowed deviation in weighbridge readings?

Answer 1

The maximum allowed deviation (tolerance) in weighbridge readings depends on standards like Legal Metrology and accuracy class (usually Class III for truck weighbridges).

👉 In general practice:

• Allowed error ≈ ±0.3% of full capacity (±3‰)
• Example:
  • For a 100-ton weighbridge → allowed deviation ≈ ±300 kg

👉 Also:

• At lower loads, the permissible error is even smaller (as per standards like IS 1436)
• Variations between different weighbridges can occur due to calibration, loading position, environmental factors, etc.