Current condition
Identify each good and faulty challenge bottle, its format and reference weight or fault condition. Record the active recipe and limits, line speed, spacing and production state.
Dynamic production weighing
Bottle Checkweighers: Challenge-Test and Reject Checklist
Agree bottle checkweigher challenge packs, weight limits, line conditions and physical reject records before acceptance testing.
Illustrative bottling-line scene.
In brief
Agree identified good and faulty bottle samples, decision limits and the actual line conditions before the trial. For each challenge, retain the weight decision and evidence that the correct bottle was removed; record the responsible response when a challenge or reject check fails.
Include normal tare variation, bottles near the decision boundaries, liquid movement and difficult transfers. Use the acceptance-window guidance to identify which weight faults can be separated from acceptable bottles.
On the production floor
Turn your production information into clearer decisions — Bottle Checkweighers
Plan bottle checkweighers around the smallest meaningful weight difference, normal product and tare variation, pack transfer, line speed, reject confirmation and traceable test evidence. Agree the samples, repetitions, pass conditions and production response with the responsible team before testing. Keep the weighing decision separate from the physical reject check.
Discuss your application
What to record
Record samples, line conditions and reject outcomes
Realistic range
Include normal product and tare spread, boundary examples, unstable formats and liquid movement. Agree representative operating conditions and repetitions rather than relying on a single successful pass.
Effect on the system
Connect each weight decision to the physical reject outcome, removal confirmation and destination state. Record failed checks, the responsible action and the agreed route back to production.
Before you contact us
Five questions about test packs, challenge method, records and production response for your application
- Who can confirm this information?Identify the person responsible for test packs, challenge method, records and production response in production, quality, engineering or operations.
- How representative is the sample?Include age, supplier, batch, environment and upstream process state where they affect bottle checkweighers.
- What is the difficult condition?Include bottles at or near the decision limits, normal tare variation, liquid movement and difficult transfer or spacing conditions.
- How will you judge the result?Agree the method, repetitions, acceptable range, result record and the response if the observed result falls outside the agreed range.
- What else must be coordinated?Your final bottle checkweighers scope must also account for reject device, removal confirmation and reject-bin state, test packs, challenge method, records and production response, current regulations and the conditions at your site.
Connected details
Six checks for the bottle challenge-test record
Representative Good and Faulty Bottles
Retain sample identities and the relevant product, bottle, cap and label variation. Compare good and faulty weights using the tare-variation study; a gross-weight decision cannot separate faults whose weights overlap normal bottles.
Examples Near the Decision Limits
Include known acceptable and faulty bottles near the agreed limits. Record the reference condition, active limits, observed weight and decision without treating one nominal weight as the complete production range.
Actual Line Conditions and Bottle Stability
Record format, speed, minimum gaps and entry and exit transfer behaviour. Include liquid movement and unstable bottles; use the in-line bottle application guidance to prepare representative trials.
Isolated and Consecutive Failed Bottles
Run isolated and consecutive faulty bottles with good bottles immediately before and after them. Keep each weight result connected to its bottle so the test shows whether the intended bottle was removed.
Removal Confirmation and Reject Destination
Record the physical removal result as well as the reject signal. Include the agreed response to a failed confirmation or unavailable reject destination; the trial must show how affected bottles and production are handled.
Records, Changes and Responsible Action
Retain sample identity, recipe, limits, line conditions, weight decision and reject outcome together. Agree who acts after a failed challenge or unexplained rise in rejects, and which checks repeat after a format or limit change.