Voltech AT5600, Руководство пользователя

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C H A P T E R 1 6 - C H A N G E L O G
AT5600 User Manual 98-119 issue 14
Page 396
The number of re-tries that have been attempted, the percentage of failures so far
and the number of transformers that failed out of the last 10 tested.
For each test in the program, the test limits, the last result and the accumulated
number of fails for each test.
Results may also be exported or printed using the normal options found under the
file menu.
AQL
AQL (Acceptable Quality Level) settings for production test are defined for each
program using the Editor,
Program > Options . AQL is the level of test failures in
a batch that are acceptable. Exceeding the AQL is an indication that there is
problem with the quality of the production process or the quality of materials used.
AQL monitoring is an optional feature of the Voltech PC Server which displays live
summary results from multiple AT testers. When the AQL level set here is
reached or exceeded, the Server will display a warning.
'AQL No. of Parts' is the number of failures in the batch at which a warning will be
displayed on the Server. This is most often used when the batch size is always
similar, or zero / very small numbers of defects are expected.
'AQL % of Parts' is the percentage level of failures at which a warning will be
displayed on the Server. Note that this AQL is only applied after sufficient parts
have been tested to make the percentage meaningful. When setting AQL % of
Parts to be 1% for example, a warning will only be displayed after 100/1 = 100
parts have been tested. Both types of limit may be used at the same time.
Reaching any one limit will cause a warning to be displayed on the Server.
When an AQL level is reached, or exceeded the Server will display a warning:
Click on 'OK' to acknowledge the warning. You will be given the option to disable
the warning for further parts in the batch. Normally, you would select 'No' to leave
the AQL checking active for the rest of the batch. When a new batch is started,
the AQL level is reset according to the level entered for the part using the Voltech
AT Editor.