Agree carton test packs, weight-decision limits, actual conveyor conditions, physical reject confirmation and the production response to failed checks.
Use known full, incomplete, doubled and marginal cartons from the actual fault list. Agree the challenge method, repetitions and acceptable results, then follow each failed weight decision through the reject device to confirmed physical removal and the agreed production response.
Use the complete weighing and rejection sequence and record the tested carton and packaging range alongside the acceptance-window basis.
Plan carton checkweighers around the smallest meaningful weight difference, normal product and tare variation, pack transfer, line speed, reject confirmation and traceable test evidence. Use this guide to resolve test packs, challenge method, records and production response before it limits the final system.
Discuss your application
For each challenge, retain the carton format, recipe, test-pack identity, intended fault, measured result and final disposition. Include the reject-confirmation result and the production response, rather than recording the reject signal alone.
For Carton Checkweighers, include normal production conditions, credible extremes, product or part variants and changes over time.
Record the response to a missing removal confirmation or reject-bin state needing attention. Keep the agreed result, required production action and follow-up evidence with the challenge record.
Include representative board, glue, leaflet, insert and product variation in the full-carton samples. Keep packaging batches, formats and recipes identified with the tested fault cartons.
Compare the lightest missing or doubled item with complete-carton variation before agreeing limits. Where the weight signal is not distinct, record the limitation; equal-mass contents need a different check.
Use actual closed-carton dimensions, flap condition, skew and stability. Include unstable or marginal examples when judging presentation and transfer behaviour.
Run the challenge cartons at the proposed speed and spacing, including relevant vibration, transfer gaps and movement changes. Nominal equipment speed alone is not the trial condition.
Confirm physical removal for the affected carton. Agree and demonstrate the production response when removal confirmation is missing or a reject-bin condition needs attention.
Agree the challenge method, repetitions, acceptable results, retained records and production response. Record the tested format and recipe with each full, incomplete, doubled or marginal carton.