Weighing, Dosing & Loss-in-Weight Feeding worked example

Scale Resolution at 65% gravimetric control efficiency: a worked example

This worked example runs the scale resolution numbers for a tougher week than the baseline: 65% gravimetric control efficiency instead of the typical 90%. This calculator turns weighed-and-dosed output over a runtime into a raw throughput, then discounts it by your gravimetric control efficiency to give the effective throughput you can actually plan around.

The inputs for this scenario

  • Units weighed and dosed: 1,200 units (held at the documented default)
  • Weighing runtime: 8 hr (held at the documented default)
  • Gravimetric control efficiency: 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw scale resolution = completed output รท runtime.
  • Effective throughput works out to 97.5 units at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 150 units at these inputs.
  • Efficiency works out to 65 % at these inputs.
  • Runtime works out to 8 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where gravimetric control efficiency sits at 90% and the headline result is 135 units, this scenario comes in 27.78% below the baseline at 97.5 units.
  • Use it when you need a realistic hourly rate for a loss-in-weight feeder or dosing station rather than an optimistic nameplate figure. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Effective throughput: 97.5 units (headline result)
  • Raw throughput: 150 units
  • Efficiency: 65 %
  • Runtime: 8 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Scale Resolution calculator, set gravimetric control efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.