Quality & Metrology worked example

Calibration Interval with gauge uses per day of 100 uses / day: a worked example

Push gauge uses per day up to 100 uses / day and the picture changes. This example computes every intermediate figure at that operating point. Use it when setting calibration intervals from real gauge usage instead of a fixed annual schedule.

The inputs for this scenario

  • Gauge uses per day: 100 uses / day (raised for this scenario; the documented default is 40)
  • Baseline calibration interval: 180 days (unchanged)
  • Usage safety buffer: 200 uses (unchanged)

Working through the calculation

  • Applying the documented formula (Expected uses in baseline interval = gauge uses per day × baseline calibration interval) to the inputs above produces each figure below.
  • At this operating point the engine returns 0 days for protected days of supply, the number this scenario is built around.
  • At this operating point the engine returns 0.56 days for unprotected days.
  • At this operating point the engine returns 100 pieces for inventory.
  • At this operating point the engine returns 180 pieces / day for daily usage.

How this compares with the baseline

  • Against the tool's baseline example, where gauge uses per day sits at 40 uses / day and the headline result is 0 days, this scenario comes in 150% above the baseline at 0 days.
  • It multiplies gauge uses per day by the baseline calibration interval to get expected uses, then adds a usage safety buffer to define the usage budget before recalibration. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Protected days of supply: 0 days (headline result)
  • Unprotected days: 0.56 days
  • Inventory: 100 pieces
  • Daily usage: 180 pieces / day

Run it with your numbers

  • Every input above is editable in the live Calibration Interval calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.