Municipal Waste Sorting Equipment worked example

Optical Sorter Sensor Cleaning Interval at 29% access, glass swap, and recalibration allowance: a worked example

Push access, glass swap, and recalibration allowance up to 29% and the picture changes. This example computes every intermediate figure at that operating point. Use it when planning the sensor wipe-down cadence on the optical sorters so ejection accuracy does not drift between shifts.

The inputs for this scenario

  • Optical sensor stations to clean: 12 stations (unchanged)
  • Stations cleaned per minute per technician: 0.1 stations / min (unchanged)
  • Access, glass swap, and recalibration allowance: 29 % (raised for this scenario; the documented default is 25)

Working through the calculation

  • Applying the documented formula (Base sensor cleaning time = sensor stations / cleaning rate per technician) to the inputs above produces each figure below.
  • At this operating point the engine returns 155 min for required sensor cleaning time, the number this scenario is built around.
  • At this operating point the engine returns 120 min for base sensor cleaning time.
  • At this operating point the engine returns 29 % for access and recalibration allowance applied.
  • At this operating point the engine returns 0.1 pieces / min for cleaning rate per technician.

How this compares with the baseline

  • Against the tool's baseline example, where access, glass swap, and recalibration allowance sits at 25% and the headline result is 150 min, this scenario comes in 3.2% above the baseline at 155 min.
  • It computes the total technician time to clean a set of optical sensor stations, multiplying base cleaning time by an allowance for access, glass swaps, and 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

  • Required sensor cleaning time: 155 min (headline result)
  • Base sensor cleaning time: 120 min
  • Access and recalibration allowance applied: 29 %
  • Cleaning rate per technician: 0.1 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.