Triggers
11
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide
171
You can also adjust the trigger level using the touchscreen. See
Trigger Menu, Change the Trigger Mode, and Open the Trigger Level Dialog"
You can push the Trigger Level knob to set the level of all displayed analog
channels to the waveform's 50% value. If AC coupling is used, pushing the Trigger
Level knob sets the trigger level to about 0 V.
When High and Low (dual) trigger levels are used (as with the Rise/Fall Time and
Runt triggers, for example), pushing the Level knob toggles between high and low
level adjustment.
The position of the trigger level for the analog channel is indicated by the trigger
level icon (if the analog channel is on) at the far left side of the display. The
value of the analog channel trigger level is displayed in the upper-right corner of
the display.
The trigger level for a selected digital channel is set using the threshold menu in
the Digital Channel Menu. Press the
[Digital]
key on the front panel, then press the
Thresholds
softkey to set the threshold level (TTL, CMOS, ECL, or user defined) for
the selected digital channel group. The threshold value is displayed in the
upper-right corner of the display.
The line trigger level is not adjustable. This trigger is synchronized with the power
line supplied to the oscilloscope.
Forcing a Trigger
The
[Force Trigger]
key causes a trigger (on anything) and displays the acquisition.
This key is useful in the Normal trigger mode where acquisitions are made only
when the trigger condition is met. In this mode, if no triggers are occurring (that is,
the "Trig'd?" indicator is displayed), you can press
[Force Trigger]
to force a trigger
and see what the input signals look like.
In the Auto trigger mode, when the trigger condition is not met, triggers are forced
and the "Auto?" indicator is displayed.
T
NOTE
You can also change the trigger level of all channels by pressing
[Analyze] > Features
and
then selecting
Trigger Levels
.
Summary of Contents for DSOX3012T
Page 78: ...78 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 2 Horizontal Controls...
Page 88: ...88 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 3 Vertical Controls...
Page 98: ...98 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 4 FFT Spectral Analysis...
Page 148: ...148 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 7 Digital Channels...
Page 154: ...154 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 8 Serial Decode...
Page 160: ...160 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 9 Display Settings...
Page 232: ...232 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 13 Acquisition Control...
Page 242: ...242 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 14 Cursors...
Page 288: ...288 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 16 Mask Testing...
Page 320: ...320 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 19 Waveform Generator...
Page 340: ...340 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 21 Print Screens...
Page 374: ...374 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 23 Web Interface...
Page 394: ...394 Keysight InfiniiVision 3000T X Series Oscilloscopes User s Guide 24 Reference...