AMETEK MX CTSL - Manual (Page 78)

User Manual MX-CTSL Compliance Test System
California Instruments Revision J 78
Windows Notepad or a similar text editor. Open the file and locate the entry called "over16amps = 1". To
disable this message pop-up, change to called "over16amps = 0" and save the file.
During the test execution, the CTSMXL software will continuously evaluate the EUT current harmonics
against the appropriate class 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 waiting till the end.
5.8.1 Voltage and Current Waveform Graphs
The top graph continuously displays two signal periods of the AC voltage (yellow) and current (green)
waveforms. For Classes A and D tests, it also shows the special current wave shape template in red.
Alternate display modes can be selected from the drop down combo at the top of the graph.
5.8.2 Voltage and Current Harmonics Graphs
The bottom graph serves a dual purpose. During the test run, it can be used to show either the current or
the voltage harmonics. In either mode, the IEC test limits are displayed using a red line for the current
harmonic limits and a green line for the voltage harmonic limits.
Note: The voltage harmonic limits apply to the AC source qualification and may indicate that the current
harmonics are affected due to AC voltage distortion. In this case, distortion compensation is
automatically applied,which is shown on the left hand side of the main window.
When displaying the current harmonics, the actual harmonic currents from the second through the fortieth
for each acquisition window are shown in green. The IEC test limits are shown using a red line. Note that
this red line always displays the 100 % IEC test limits during Steady State testing, regardless of the user
specified test margin which is used for the Pass or Fail determination. (see "Setting the Test Margin" ,
found in paragraph 5.7.3).
Note: The fundamental current is not shown in the harmonics graphs as there is no test limit for the
fundamental.
5.8.3 Aborting a Test
Tests in progress can be aborted at any time by clicking on the Stop button. Aborted test data files will be
marked as incomplete.