Making Measurements
Making a Triggered Measurement 4
4-19
Setting a Trigger Delay
When in external trigger mode, the Meter is capable of delaying the start of the
measurement cycle after the trigger stimulus is sensed by up to 3600 seconds.
To set a trigger delay:
1. With the measurement setup menu displayed, press the soft key labeled TRIGGER.
2. Press the soft key labeled TRIG DELAY.
3. Use the soft keys to set the trigger delay.
Select the digit in the value by pressing either <-- or -->.
With the desired digit selected, press the soft key labeled -- to decrement the digit
or ++ to increment the character.
4. Press ENTER.
Setting Number of Samples per Trigger
When in external trigger mode, the Meter will take between 1 and 50,000 measurements
for each trigger received.
To set the number of samples, or measurements the Meter will take for each external
trigger received:
1. Press Lto display the measurement setup menu.
2. Press the TRIGGER soft key.
3. Press the soft key labeled #SAMPLES.
4. Use the soft keys to set the number of samples between 1 and 50,000.
Select the digit in the value by pressing either <-- or -->.
With the digit selected, press the soft key labeled -- to decrement the digit or ++ to
increment the character.
5. Press ENTER.
Connecting an External Trigger
The TRIG I/O jack on the Meter’s rear panel is used to connect to an external trigger
signal. The falling edge of a TTL signal will trigger the Meter to start taking
measurements, if the Meter is in external trigger mode.
Figure 4-9 indicates the purpose of the three pins in the TRIG I/O connector.
TRIG I/O
Pin 3: Measure Complete OutPin 1: Trigger In
Pin 2: Signal Ground
caw059.eps
Figure 4-9. TRIG I/O Pin-out Description
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