How to avoid buying a system the night shift will switch off
Trial the system with night-shift people and the hardest roll. Too many false alarms and it will be switched off. The hours it is off cannot be written as inspected.
A system the night shift will switch off is usually one with too many false alarms, or one where nobody can change the template. When you buy, trial it with night-shift people and the hardest roll, and give a way to get a roll through without changing the threshold. A system only the day shift likes will be muted at night.
Why it is judged this way
Turning the alarm sound off and bypassing the reject is the same as not having bought the system, but the report may still show online. Acceptance has to see whether the bypass stays in the record. Without that record, the night shift can silently not inspect.
What to compare
| What you see | What to call it | What not to do |
|---|---|---|
| The bypass is on the record | It can be checked afterwards | Only look at the system being on |
| The night shift cannot change the template | Train first, then accept | Train only the day shift |
| A hard roll false-alarms so much that production cannot run | Fix the zoning first | Force it online |
At job change or when a roll is opened
- Let a night-shift operator change a template once, themselves.
- Use a hard roll and see whether the false alarms still allow production.
- Confirm that a bypass will be written down.
