User manual

User Manual Compliance Test System 3.0
% which essentially means the actual IEC limits are applied to determine a pass or fail result.
This is the mode to use for actual compliance testing.
Setting this margin to a value below 100 % can be useful for pre-compliance testing. Selecting a
lower margin means the test is more stringent. If the EUT can pass the more stringent test, it is
more than likely to pass when submitted to an independent test lab.
Setting the margin above 100 % means you are “loosening” the limits allowing EUT’s to pass that
would normally fail. This mode is not recommended.
6.4.5 Running the Flicker Test
Before starting a test, make sure all user fields are set correctly. Changes to these fields are no
longer possible once a test is in progress. Also make sure the EUT is connected to the AC output
of the PACS unit and the correct AC line voltage is programmed on the AC source.
A test run is started by clicking on the Start button.
During the test execution, the CTS 3.0 Software will continuously evaluate EUT Flicker against
the appropriate IEC limits. The Pass or Fail indication is updated in real-time. If the test fails early
in a long test period, you may elect to abort the test prematurely rather than wait till the end.
6.5 Printing Results
The CTS 3.0 Software can produce a WORD based report. At the end of test, the report button
will be enabled. Clicking on the Report button will generate information needed for a report and
present an option to generate a report in WORD.
6.6 Flicker Replay Mode
The CTS 3.0 Software can be used to replay previously recorded test data. This replay can be
done on the same test system that was used to record the original data or on an altogether
different PC.
In order to replay a test, the data acquired during the test needs to be saved to a CTS native data
file. If the save data option is not enabled in the additional setup window for Flicker, there is no
way to replay a test later. The Pass or Fail result of any run on the actual test system PC is
always logged however. If a different PC is used to play back data, the data files have to be
transferred to this PC first. The test data files are stored in the following directory:
C:\Program Files\California Instruments\CTS\Data_files
6.6.1 To play back test on the actual test system PC, proceed as follows:
1. From the Test Menu, select 'Replay an existing test'. This will bring up a table showing all
tests ever run on this system.
2. Select the test you want to replay by clicking on its row. If data for this test was stored and is
available, the Replay Test button at the bottom will be enabled.
3. Click on the Replay Test button to start the replay process. This will bring up a standard
Harmonics or Flicker test screen.
4. To start the replay process, click on the Start button. The data displayed will be taken from
the stored data files. The replay mode is indicated in the lower right corner on the status bar.
5. The buffer rate and speed at which data is replayed can be controlled using the various
settings in the Options menu. This may be required to adjust to the speed of the PC used.
6. The replay process can be halted at any time by clicking on the Stop button. This will stop
the data at the buffer number shown in the lower left corner.
California Instruments Revision N 91