8: Triggering 2470 High Voltage SourceMeter Instrument
8-2 2470-901-01 Rev. A / May 2019
Trigger key triggering
When you select the Manual Trigger Mode from the 2470 front-panel, the instrument only makes a
measurement when you press the front-panel TRIGGER key.
The instrument stores the readings in the active reading buffer. See Reading buffers (on page 6-1
) for
detail on the buffer options that are available.
Trigger model triggering
When you select the trigger model measurement method, the instrument uses a trigger model to
control the sequence in which measurements occur. The 2470 trigger model is flexible, allowing you
to control as much or as little as needed for your measurement application.
When you are remotely controlling the instrument, the trigger model measure method is automatically
selected. In addition, you can view different buffers from the front panel, but the actual buffer that is
used is defined by the remote commands.
For detail on the trigger model, see Trigger model (on page 8-27
).
Switching between measurement methods
The measurement methods that are available to you depend on how you are controlling the
instrument.
If you are using the front panel to control the instrument, you can choose any of the measurement
methods.
If you are using a remote interface to control the instrument, you can only use the trigger model
measurement method. When you switch to a remote interface, the trigger model measurement
method is automatically selected. If you switch from remote control to front-panel control, the trigger
model measurement method remains selected.
If you are running a script, the instrument automatically switches to the trigger model measurement
method.
Using the front panel:
1. Press the front-panel TRIGGER key for 2 s. A dialog box displays the available trigger methods.
The presently selected method is highlighted.
2. Select the method you want to use.
3. If the instrument is in remote control, the instrument displays a confirmation dialog box. Select
Yes to change to local control.
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