AMETEK Lx Series II - Manual (Page 103)

User Manual Lx / Ls Series II
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4.7.4 Pulse Transients
Pulse transients let you program the output to a specified value for a predetermined amount of
time. At the end of the Pulse transient, the output voltage returns to its previous value.
Parameters required to set up a Pulse transient include the pulse count, pulse period, and pulse
duty cycle. An example of a Pulse transient is shown in Figure 4-10. In this case, the count is 4,
the pulse period is 16.6 ms or 60 Hz and the duty cycle is 33%.
Figure 4-10: Pulse Transients
Note that Pulse transients can only be programmed over the bus, not the front panel. Refer to the
SCPI Programming Manual for more information about programming Pulse transients and
triggers.
4.7.5 List Transients
List transients provide the most versatile means of controlling the output in a specific manner as
they allow a series of parameters to be programmed in a timed sequence. The following figure
shows a voltage output generated from a list. The output shown represents three different AC
voltage pulses (160 volts for 33 milliseconds, 120 volts for 83 milliseconds, and 80 volts for 150
milliseconds) separated by 67 millisecond, zero volt intervals.
Transient list programming is supported from the front panel and may be accessed by selecting
the TRANSIENTS screen. Transient lists can also be programmed over the bus. Refer to the
SCPI Programming Manual for more information about programming List transients and triggers
over the bus.
Figure 4-11: List Transients
The list specifies the pulses as three voltage points (point 0, 2, and 4), each with its
corresponding dwell point. The intervals are three zero-voltage points (point 1, 3, and 5) of equal
intervals. The count parameter causes the list to execute twice when started by a single trigger.