AMETEK MX CTSH - Manual (Page 75)

California Instruments Revision H 75
User Manual MX Series CTSH Compliance Test System
The third page of the report contains data on the source voltage. If needed, the CTSMXH software will
compensate for voltage distortion that would affect the harmonic current results. This will be indicated.
Note that the overall EUT test results is repeated in the header of this page. This pass or fail does not apply
to the AC source.
Report Templates
Test reports are based on report templates. Each test mode (harmonics or flicker) and phase mode (single
or three-phase) requires a different report template. The CTSMXH program selects the correct template
automatically so this is transparent to the user.
All report templates are distributed with the program and are located in the following directory:
C:\Program Files\California Instruments\Ctsmxh\report_files\templates
If these files are accidentally moved, deleted or damaged, report printing will not function and the template
files have to be restored. This may be done by re-installing the program if needed.
5.10 Harmonics Test Data Files
The CTSMXH Software can be configured to log test data to a file. The file format used is proprietary but
can be converted at the end of the test to an ASCII text file with tab delimited fields for voltage, current,
power, peak current and all the current harmonics. This data is recorded in real-time or three to four times a
second.
Longer test times will result in larger test data files and reports. If you increase the test time, make sure you
have sufficient hard disk space available to accommodate these long test files. The rate at which data is
written to disk can be decreased to avoid excessive file sizes. The point at which the program will reduce
the rate of data storage can be set in the configuration. Should a test failure occur while the CTSMXH
program is in this reduced data rate recording mode, full rate data recording resumes for a specified
number of acquisition buffers. This always provides detailed information around the time of the failure.
These recording rate settings can be set in the miscellaneous section of the configuration program.
5.11 Three Phase Testing
Three-phase testing is similar to single phase testing described above except that three line voltages and
three line currents are being measured simultaneously and displayed in the CTSMXH Software GUI.
The three phase mode screens are virtually identical in function and form to the single-phase screens. The
user can view one phase at a time, or all three phases simultaneously.
5.12 Replay Mode
The CTSMXH 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 Harmonics, 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\Ctsmxh\Data_files
5.12.1 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.