Tabor Electronics 5064, User Manual

Page: 90 / 369

3
Using the Instrument
Selecting a Run Mode
3-19
updated with the selected run mode
2. Use the arrow keys or the dial to scroll down to the parameter
field you want to modify
3. Press Enter to edit the field value
4. Use the arrow keys or the dial to modify the parameter
5. Press Enter to lock in the value
Triggered Mode
In Triggered mode, the output remains at a DC level as long as a
valid trigger signal has not occurred. Each time a trigger occurs, the
2074 generates one complete output waveform. At the end of the
output cycle, the output resumes position at a DC level that is equal
to the amplitude of the last point of the waveform.
The instrument may be triggered from one of the following sources:
A rear panel input, designated as TRIG IN, front panel button,
marked MAN TRIG and a remote command such as *TRG. When
placed in EXT (external) trigger source, remote commands are
ignored and the instrument monitors the TRIG IN connector or the
MAN TRIG control. When in BUS, the hardware inputs are ignored
and only remote commands can trigger the instrument. The MIX is
a special trigger advance mode that senses the first remote trigger
and only then enables the hardware sources.
There are four parameters you can adjust for this mode:
Source
– defines the trigger source. EXT enables the rear
panel trigger input, BUS enables remote commands and MIX
enables remote command and after the first trigger enables the
EXT source.
Slope
– defines edge sensitivity for the trigger input
Level
– sets the trigger level crossing point for the rear panel
TRIG IN connector. Signal transition to above the trigger level
will trigger the instrument. When the slope is set to negative,
transitions to below the trigger level will trigger the instrument.
Trigger level sensitivity and maximum level should be observed
to avoid damaging the input
Trigger Delay
– defines the state of the delayed trigger
function.
Re-Trigger
– defines the state of the re-trigger function
You may use the triggered mode to trigger standard, arbitrary
sequenced and modulated waveforms. The Trigger run mode
parameters are shown in Figure 3-9.