Measurement Methods; Continuous Measurement Triggering; Trigger Key Triggering; Trigger Model Triggering - Keithley 2461 Reference Manual

Section 3: Functions and features

Measurement methods

Triggers are signals that instruct the instrument to make a measurement. You can set the Model 2461
to use the following triggering measurement methods:
•
Continuous measurement: The instrument is making measurements continuously.
•
Manual trigger mode: Press the front-panel TRIGGER key to initiate a single measurement.
•
Trigger model: The instrument makes measurements according to the settings of the trigger
model. To select this method, a trigger model must be set up. Select Initiate Trigger Model to
start the trigger model, or Abort Trigger Model to stop a trigger model that is presently running.

Continuous measurement triggering

When you select the continuous measurement method, the instrument makes measurements
continuously.
The continuous measurement method is only available when you are controlling the instrument locally
(through the front panel).
The instrument stores the readings in the active reading buffer. See
detail on the buffer options that are available.
If you press the front-panel TRIGGER key when the instrument is set to the continuous measurement
method, measurements are not made. Instead, a dialog box is displayed that asks if you want to
change the measurement method.

Trigger key triggering

When you select the Manual Trigger Mode from the Model 2461 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
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 Model 2461 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
3-98
Model 2461 Interactive SourceMeter® Instrument Reference Manual
Trigger model (on page 3-107).
Reading buffers (on page 3-2) for
Reading buffers (on page 3-2) for
2461-901-01 A/November 2015