AMETEK CSW Series User Manual
Page 99
User Manual
California Instruments
CSW Series
99
TRIGGER
DELAY
ACQUISITION WINDOW
TRIGGER =
SET VOLT 120
START
[ENTER]
Figure 3-42: SET VOLT trigger source acquisition
This mode is appropriate for capturing the inrush current of a
load by programming the voltage to a specified value and
capturing the voltage and current at that moment in time. A
further refinement can be made by specifying the voltage start
phase angle in the PROGRAM 2 screen. If this field is changed
from RANDOM to 90°, the inrush current can be captured under
worst case conditions. In this case, the voltage should be
programmed to 0 volt before triggering the acquisition using the
START field.
Note: When using the SET VOLT trigger source, the output relay MUST be closed to
generate a trigger. If the output is open, the acquisition will be armed when the
START [ENTER] key is pressed but will wait for the trigger event. Closing the
output relay will generate the trigger event. If the output relay was already closed
when the START [ENTER] key is pressed, the trigger will occur immediately.