Weighing, Dosing & Loss-in-Weight Feeding calculator
Loss-In-Weight Catch Test Calibration Calculator
Compare a loss-in-weight controller total with an independent catch weight. Enter matched indicated mass, reference mass and the allowed indication error.
What this calculator does
- Compare a loss-in-weight controller total with an independent catch weight.
Formula used
- Indication error = Indicated mass − Reference catch
- Indication error % = Indication error × 100 ÷ Reference catch
- Reference-to-indicated ratio = Reference catch ÷ Indicated mass
- Error margin = Allowed error % − Abs(Indication error %)
Inputs explained
- Controller Indicated Discharge: Integrated discharge mass indicated during the timed catch.
- Reference Net Catch Mass: Net catch weight from an independently checked balance.
- Allowed Indication Error: Maximum absolute error from your calibration acceptance procedure.
How to use the result
- Best suited to feeder calibration checks, controller total verification.
- The ratio is not a universal calibration-factor update or speed correction.
Common questions
- Can I multiply every calibration setting by this ratio? No. Manufacturers define calibration factors differently; follow the specific controller procedure.
- Why use the caught mass as the denominator? It is the independent reference against which the controller indication is being checked.
- Should refill periods be included? Use the test procedure specified for the feeder, and document whether the catch includes refill operation.
- Does one catch establish calibration across the range? No. Repeat checks at the required rates and operating conditions in your calibration procedure.
Last reviewed 2026-10-12.