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Technical Document Reader
Document
098-024
Name

AT3600 User Manual

Description
The full user manual for the AT3600 transformer tester.
AT3600 User Manual
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Expand 1 Introduction1 Introduction
Expand 2 Getting Started2 Getting Started
Expand 3 Test Program Editor3 Test Program Editor
Collapse 4 Using the Server4 Using the Server
4.1 Introduction
Expand 4.2 Test Program Handling4.2 Test Program Handling
Collapse 4.3 Test Results Handling4.3 Test Results Handling
4.3.1 Receiving Test Results
Collapse 4.3.2 Result Display And Analysis4.3.2 Result Display And Analysis
4.3.2.1 On-Line Monitoring
4.3.2.2 Batch Statistics On-Line
4.3.2.3 Database On-Line
4.3.2.4 OLE On-Line
4.3.2.5 Off-Line Analysis
Expand 5 Fixtures5 Fixtures
Expand 6 Front Panel Operation6 Front Panel Operation
Expand 7 Tests and Test Conditions7 Tests and Test Conditions
Expand 8 Specification8 Specification
Expand 9 Warranty and Service9 Warranty and Service
Expand 10 Safety Systems10 Safety Systems

4.3.2.2 Batch Statistics On-Line Analysis

Setting Up Batch Statistics

From the 'Set-up' menu, select 'Results' to see the following dialogue:

Select 'Display Basic Statistics' to save results to a database. For this feature to operate a licence for use must first be obtained from your Voltech supplier.

All results formats can be saved simultaneously.

Basic statistics displays, on-line, a summary of the results for the current batch of transformers that is being tested on every AT connected to the Server. Results for previous batches can also be opened and the statistics displayed and printed.

The batch statistics window display is automatically shown once this feature is enabled. For each AT connected to the Server the following information is displayed:

The type of AT and its serial number, and the part name, operator and batch.

PASS or FAIL for the last part tested, the total tested so far and the serial number of the last part tested.

The number that have passed and failed, and the AQL<+> (Acceptable Quality Level) of the transformer.

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. 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.

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or
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