Calibration Management A practical, evidence-based way to decide whether a measuring instrument should be repaired, retained, restricted, or replaced after a calibration result raises concern. Contents Calibration or Replacement? The Short Answer What a Failed Calibration Tells You Calibration, Adjustment, Repair, and Verification Start With the Measurement Requirement How Measurement Uncertainty Changes the Decision Why the As-Found Condition Matters Use Calibration History and Interval Data When Repair and Continued Use Are Reasonable When Replacement Becomes the Better Option Compare Lifecycle Cost and Downtime ISO/IEC 17025 and NABL Scope A Practical Decision Process Decision Matrix Frequently Asked Questions Calibration or Replacement? How to Decide After a Measuring Instrument Fails Calibration When a measuring instrument produces an un...

Dimensional Calibration Interpret height-gauge calibration results as a measurement system. Learn how the surface plate, base, probe, carriage, direction of travel and working range can create different error patterns, and use those patterns to decide what needs investigation before the instrument returns to inspection use. How to Interpret Height-Gauge Calibration Results Direct answer Don’t judge a height gauge by its display resolution or a single calibration point. Review its errors across the range you actually use, then consider the setup that produced those results. A height gauge works from a reference plane. That means the surface plate, base, carriage, probe or scriber, contact method, and direction of approach can all affect the measurement. The calibration certificate should be read as evidence about that measurement system—not just the scale or encoder. Contents What a height-gauge certificate can tell you Why the surface plate and base matter...