User Manual
2253i / 2253iX
AMETEK
California Instruments
86
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.
4.7.6 Programming list transients from the front panel
The output transient system allows sequences of programmed voltage and or frequency changes to be
executed in a time controlled manner. Changes can be either step changes (maximum slew rate) or
ramps (specified slew rates).
