Scale Calibration is the process of adjusting a weighing scale to ensure its accuracy and precision in measuring weight. Calibration involves comparing the scale's measurements to a known reference and making necessary adjustments to correct any discrepancies.

• Accuracy: Calibration ensures that the scale provides accurate measurements that reflect the true weight of the objects being weighed. It aligns the scale’s readings with known standards, minimizing measurement errors.
• Compliance: In regulated industries, such as pharmaceuticals and food processing, accurate measurements are critical for compliance with standards and regulations. Regular calibration ensures that scales meet these requirements.
• Quality Control: Calibration is essential for maintaining quality control in manufacturing processes. It ensures that products are weighed correctly, which is crucial for consistency and quality assurance.

• Initial Setup: The calibration process begins by setting up the scale and ensuring that it is on a stable, level surface. This helps eliminate environmental factors that might affect accuracy.
• Using Calibration Weights: Known reference weights, often certified calibration weights, are used to check the scale’s accuracy. These weights are placed on the scale to determine if the measurements align with the true weight.
• Adjustments: If discrepancies are found between the scale’s readings and the known weights, adjustments are made to correct the scale’s accuracy. This may involve modifying calibration settings or performing a full recalibration.
• Verification: After adjustments, the scale is re-tested with the calibration weights to verify that the measurements are now accurate. The process may need to be repeated until the scale meets accuracy standards.

• Regular Intervals: Scales should be calibrated at regular intervals, depending on their usage and importance. High-precision scales or those used in critical applications might require more frequent calibration.
• After Use: Calibration is also necessary after significant changes in the scale’s environment, such as moving the scale or after heavy usage that could affect its accuracy.

• Documentation: Keeping detailed records of calibration activities is essential for tracking the accuracy and compliance of the scale over time. Calibration records include information on calibration dates, weights used, and any adjustments made.
• Audit Trails: In regulated industries, maintaining an audit trail of calibration activities is necessary for compliance and quality assurance purposes.

• https://en.wikipedia.org/wiki/Calibration
• https://www.nist.gov/pml/weights-and-measures/calibration