AMETEK MX CTSH - Manual (Page 78)

California Instruments Revision H 78
User Manual MX Series CTSH Compliance Test System
6. Flicker Testing
6.1 About This Chapter
This chapter covers testing a device for compliance with the IEC 61000-3-11 Flicker standard. The relevant
IEC Flicker test part is described in detail.
6.2 Principle of Operation
The MXCTSH Flicker software acquires, stores, processes and analyzes the EUT data in real-time and
provides continuous display updates on all Flicker parameters. Voltage time domain data is collected, the
rms voltage value is calculated for each half period of the signal or every 10 mseconds, and the
measurement data is written to disk for 100 consecutive acquisition periods or once every second.
This allows the operator to monitor the progress of the flicker test and, should a failure occur before the end
of the test run, abort the test if needed. Since flicker test can run for several hours, this will avoid needless
waiting for tests to finish on a EUT that already failed the IEC requirements.
In order to run the real-time Flicker test, you need a 1.2 GHz Pentium PC or better. This is due to the
amount of data that needs to be processed to perform flicker evaluation. Slower PC’s will not be able to
process the data in real-time.
6.3 Running a Flicker Test
Running a flicker test is similar to running a harmonics test. Launch MXCTSH and select flicker test in the
set up screen. Then select appropriate test parameters and click OK to continue. You will be presented
with a test screen similar to that of harmonics.
Figure 6-1: Flicker Setup Window