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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
Expand 4 Using the Server4 Using the Server
Expand 5 Fixtures5 Fixtures
Collapse 6 Front Panel Operation6 Front Panel Operation
Expand 6.1 Introduction6.1 Introduction
6.2 Self Test
Collapse 6.3 Execute Mode6.3 Execute Mode
6.3.1 Execute Mode With No Options Enabled
6.3.2 Execute Mode With Options Enabled
6.3.3 Stop On Fail
6.3.4 Trim
6.4 Fixture Compensation
Expand 6.5 Measure Mode6.5 Measure Mode
Expand 6.6 Program Mode6.6 Program Mode
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

6.3.4 Trim

If the TRIM test is included in a program, the behaviour in EXECUTE Mode is similar to the ‘Stop on Fail’ option described above:

If the test before the TRIM test produces a ‘Pass’ result, then the program proceeds directly to the next test after the TRIM test.

If the test before the TRIM test produces a ‘Fail’ result, then the front panel display will be similar to the following:

The main difference between this and the ‘Stop on fail’ display is that the reading on the fourth line will be continuously updated, allowing adjustments to be made to bring the test result within limits.

Pressing the ABORT soft-key again stops the program and allows the operator to throw away a transformer that cannot be adjusted to give a ‘Pass’ result.

After pressing the CONTINUE soft-key, the remaining tests in the program will be executed, and at the end of the measurement, the component will be classed as a ‘Fail’.

Pressing the RE-RUN soft-key will re-start the test sequence from the beginning.

Note: After making the necessary adjustments, you must press RE-RUN to enable the component to be recorded as a ‘Pass’.

If further adjustment is necessary, you may re-run from the start as many times as you like. Unless the option ‘Send Retry Results to Server’ is enabled, there will be no data sent back to the Server until the measurements for all tests in the program have been completed.

As TRIM can only be applied to a test that uses a low voltage generator, the safety interlocks will not be in operation while adjustments are being made.

All transformers are capable of generating voltages much higher than the test voltage.

When making adjustments, take care not to touch any transformer terminals, the transformer body, or any exposed metal on the test fixture. Ideally, make sure that you use trimming tool with a well insulated handle.

When applying a test signal to a winding, always be mindful of the turns ratio of the transformer you are testing. Very high voltages can be generated on the other windings of the transformer, if these voltages exceed 7kV the tester may be permanently damaged.
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or
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