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The Failure Monitor logs data records that violated SPC rules, gate limits or specification limits during data entry. You can use this list to find out which processes are generating SPC failures and to log corrective action and summary information.
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Starting the Failure Monitor
After you log in to the SPC Database Monitor module and the Start Monitor screen is displayed, click Start Failure Monitor.
To start the Failure Monitor when the Start Monitor screen is not available, click the Show menu, and then click Failure Monitor.
In PDA mode, click the Window (or Wnd) menu, point to Show, and then click Failure Monitor.
Understanding the Failure column
The Failure Monitor displays a table of data records with real-time failures. In this table, the Failure column will display one or more of the following failure codes:
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Symbol |
Failure |
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C |
Control Limit failure |
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S |
Specification Limit failure |
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G |
Gate Limit failure |
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R |
Run failure |
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T |
Trend failure |
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Z |
Zone failure |
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Q |
CuSum failure |
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I |
Individual limit failure |
The reasons associated with these failure codes are also listed in the status bar at the bottom of the screen. (In PDA mode, the status bar is not displayed.)
Managing the number of records shown in the Failure Monitor
The Failure Monitor keeps track of ALL real-time failures in your database, so it grows over time as you collect data. To keep the list at a manageable size, you can regularly purge old records from the list or choose which monitor records to display.
More:
Performing corrective action on failures
