AMETEK CTS 3.0 - Manual (Page 77)

User Manual Compliance Test System 3.0
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5.6 Additional Setup Parameters for Harmonics
If this is first time using the CTS 3.0 system, it may be necessary to check the Additional Setup
settings. These settings can be displayed by clicking on the "Additional Setup" button on the right
hand side of the main setup window.
The following settings are available from this dialog window:
Setting Description
Pre test time This is the time during which to apply power to the EUT before staring the
harmonics measurements. This capability may be used to skip any startup
behavior of the EUT that may affect the outcome of the test. High EUT inrush
currents that exceed the AC Source's maximum peak current capability can result
in high voltage distortion. This would invalidate the test. The Pre-test time
setting can be used to hold off measurements until after the EUT has reached a
steady state condition.
Source Control The CTS system is normally supplied with a suitable AC power source to provide
stable and low distortion AC power to the EUT. The Source Control section of
the additional setup dialog is used to configure the CTS system for the AC
Source used. Available options are:
Use the AC source
from its front panel
only This option may be needed if the AC Line is used or the
AC source used does not offer remote control capabilities.
This way of operating puts more responsibility on the
operator to ensure the correct power is applied during the
test.
RS232C control Used with AC Sources that have RS232C control
capability. The Verify Source must be used to make sure
the AC Source can be found. The AC source must be
connected using the serial cable provided and must be
powered up. The View Bus button may be used to bring
up the command trace for trouble shooting purposes if the
presence of source cannot be verified. When using
remote control, the user can select to have the front panel
locked or not by setting the Disable checkbox.
Note that support for the Pacific Power Source AMX with -
1UP or -3UP controllers is provided as well.
Figure 5-4: Additonal Settings for Harmonics Test