Process agent·Line A·Jacket loop·Hold temperature 84 to 86 °C·14:00TrialRunning trial
Raise hold temperature from 84 to 86 °C
Batches held at 86 °C reached target viscosity 6 minutes sooner in the model of the mixer, inside the narrowed band.
Expected result
ModelledViscosity2470 mPa·s90% interval 2410 to 2540
Spec 2380 to 2600 mPa·s (dashed). Driven by Hold temperature, Hold time, Charge mass.
Why this confidence
- Method
- Optimiser opt 2.4.0; band from the model of the machine; weakest input modelled
- Model fit
- Accepted, four checks passed
- Safety filter
- Passed: Inside narrowed band 80 to 90 °C
- Evidence
- EV-A-1102, EV-A-1120
Limits
Hold temperature84 °Cto 86 °C
7880 to 90 narrowed92
Signed by Plant head A. · 9 SeptStamped narrowingNowProposed
If stoppedStop restores the checked prior value, 84 °C, from the next batch. If restore fails the line goes recommend-only.
DecidedPlant head A. · 15 Oct 14:00
NoticedProposedWaitingtrialMeasuringVerdictHolding