Agilent Technologies 34450A Guía de usuario Pagina 84

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62 34450A User’s Guide
2 Functions and Features
External Trigger
External triggering takes one reading (or the specified
number of readings in data logger) each time the multimeter
receives a pulse on the rear- panel external trigger connector.
The multimeter uses the rising edge (POS) of the external
trigger signal to trigger a reading. Diagram below shows the
external trigger connector:
Figure 2-5 Trigger in connector
The trigger annunciator turns on when the multimeter is
waiting for an external trigger.
The rear panel trigger out connector provides a pulse after
the completion of each measurement. Trigger out and
external trigger implement a standard hardware handshake
sequence between measurement and switching devices.
Trigger Out
The Trigger out signal cannot be configured and is
implemented in four ways:
In local mode, a trigger out signal is sent whenever a
measurement is updated on the front panel.
In remote mode, a trigger out signal is sent whenever a
measurement is taken by the user through using command.
+
Tx
Rx
TRIG
IN
TRIG
OUT
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