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User Manual – Rev AJ
California Instruments
4.6.3 T
s
riggering Measurement
Both FFT results and waveform acquisitions may have to be positioned at a specific moment in
time. To allow the data acquisition to coincide with user specified events, the measurement
gger modes are available from both the bus and
system can be triggered in different ways. Tri
the front panel. If one of the remote control interfaces is used, acquisitions may also be triggered
r details on this mode of
4.6.3.1
ode
from the transient list system. Refer to the programming manual fo
operation.
Trigger m
The following trigger modes are supported by the MX Series 3Pi controller:
system to be armed only
nt
is
put in an idle state. A new user initiated START event must be
given to trigger an new acquisition.
This mode is appropriate for capturing events that occur only
once such as the inrush current when turning on a load.
Continuous (CONT)
This mode causes the trigger system to re-arm itself after each
trigger event. Every time a new trigger event occurs, new data
is acquired and the LCD display is updated. No user
intervention is required after the initial START event.
This mode is appropriate for capturing repetitive events or to
monitor the source output continuously. Display updates will
occur about once per second.
4.6.3.2 Trigger source
Single (SINGLE)
This mode causes the acquisition
once. The MX source waits for the user to press the ENTER
key while on the START field. As soon as the trigger eve
specified occurs, data is acquired and the acquisition system
The MX Series 3Pi controller offers a choice of trigger sources in front panel operation mode.
The following trigger sources are available from the HARMONICS/TRACE ANALYSIS, TRIG
SOURCE field:
Immediate (IMM)
This mode causes a trigger to occur as soon as the ENTER key
is pressed with the cursor on the START field. No trigger source
needs to be specified for this trigger mode. This mode is
equivalent to the INIT:IMM:ACQ bus command.
This trigger source is appropriate if no trigger condition is
known or desired. When using this trigger source, the
Phase (PHASE A)
This mode causes the MX acquisition system to wait for a
specified phase angle on the phase A voltage output. This
allows the acquisition to be positioned in time with respect to
any phase angle on phase A, B or C. Note that phase A, B and
C are typically at 0°, 240° and 120° with respect to the specified
trigger phase in this field. An example of this trigger source
mode is shown in Figure 4-40.
acquisition is always triggered.
132 MX
Series
Содержание MX30-1
Страница 4: ...User Manual Rev AJ California Instruments 4 MX Series ...
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