To Trigger The Multimeter - HP 34401A User Manual

Chapter 2 Front-Panel Menu Operation

To Trigger the Multimeter

To Trigger the Multimeter
You can trigger the multimeter from the front panel using single trigger
or auto trigger.
Enables single trigger
and triggers the multimeter.
Toggles between auto trigger
and reading hold.
Auto triggering is enabled when you turn on the multimeter. Notice
that the * (sample) annunciator turns on during each measurement.
Single triggering takes one reading each time you press
and then waits for the next trigger. Continue pressing this key to
trigger the multimeter.
Using an External Trigger
The external trigger mode is also enabled by pressing
the single trigger mode except that you apply a trigger pulse to the rear-panel
Ext Trig terminal. The multimeter is triggered on the negative edge of a
TTL pulse.
The front-panel
42
* (sample) annunciator is on
during each measurement.
Single
key is disabled when in remote.
Trig annunciator is on when the
multimeter is waiting for single
trigger (auto trigger disabled).
Single
Single
. It is like