Triggering
In Detail
3Ć72
Normal
When the instrument is in nonstore mode and normal trigger mode, it
behaves in a manner similar to that of an analog oscilloscope. If a new
trigger does not occur, the instrument holds the waveform until the end
of the update period. Then the display is blanked until the next trigger
occurs.
In store mode, the instrument stores the waveform on the display until
a new trigger occurs.
AutoĆBaseline
When in autoĆbaseline mode, the instrument acquires and displays
whatever data it can capture, regardless of whether a trigger event
occurs. This mode allows you to display information even when a
signal is too small to trigger on.
If the instrument is using the scrolling timeĆbase mode for slow timeĆ
base settings, it remains untriggered because scrolling accepts no
triggers.
AutoĆLevel
In autoĆlevel mode, the instrument sets the trigger level itself. It deterĆ
mines the high and low peak values of the signal, and sets the trigger
level to the midpoint between them. If you adjust the trigger level
setting directly while in this mode and triggering is lost, the trigger level
quickly returns to the midpoint.
If no signal is applied to the trigger source, the autoĆlevel feature
causes the instrument to behave in the same manner as it does under
autoĆbaseline mode:it forces a trigger event and displays the resulting
data.
NOTE
If the instrument is using the autoĆlevel trigger mode and
you change the trigger level or the trigger is lost, the
instrument can sometimes fail to reacquire the new trigger
level. If this occurs, press the
AUTOLVL:PUSH
knob.
The instrument attempts to set the trigger level automatically when
under three conditions:
Triggering
In Detail
3Ć72
Normal
When the instrument is in nonstore mode and normal trigger mode, it
behaves in a manner similar to that of an analog oscilloscope. If a new
trigger does not occur, the instrument holds the waveform until the end
of the update period. Then the display is blanked until the next trigger
occurs.
In store mode, the instrument stores the waveform on the display until
a new trigger occurs.
AutoĆBaseline
When in autoĆbaseline mode, the instrument acquires and displays
whatever data it can capture, regardless of whether a trigger event
occurs. This mode allows you to display information even when a
signal is too small to trigger on.
If the instrument is using the scrolling timeĆbase mode for slow timeĆ
base settings, it remains untriggered because scrolling accepts no
triggers.
AutoĆLevel
In autoĆlevel mode, the instrument sets the trigger level itself. It deterĆ
mines the high and low peak values of the signal, and sets the trigger
level to the midpoint between them. If you adjust the trigger level
setting directly while in this mode and triggering is lost, the trigger level
quickly returns to the midpoint.
If no signal is applied to the trigger source, the autoĆlevel feature
causes the instrument to behave in the same manner as it does under
autoĆbaseline mode:it forces a trigger event and displays the resulting
data.
NOTE
If the instrument is using the autoĆlevel trigger mode and
you change the trigger level or the trigger is lost, the
instrument can sometimes fail to reacquire the new trigger
level. If this occurs, press the
AUTOLVL:PUSH
knob.
The instrument attempts to set the trigger level automatically when
under three conditions:
Summary of Contents for 222PS
Page 6: ......
Page 18: ...Contents xii Contents xii ...
Page 21: ...Overview Overview ...
Page 22: ......
Page 27: ...At a Glance At a Glance ...
Page 28: ......
Page 45: ...In Detail In Detail ...
Page 46: ......
Page 50: ...Acquisition Modes In Detail 3Ć4 Acquisition Modes In Detail 3Ć4 ...
Page 54: ...Auto Setup In Detail 3Ć8 Auto Setup In Detail 3Ć8 ...
Page 60: ...Calibration In Detail 3Ć14 Calibration In Detail 3Ć14 ...
Page 66: ...Channels In Detail 3Ć20 Channels In Detail 3Ć20 ...
Page 70: ...The Display In Detail 3Ć24 The Display In Detail 3Ć24 ...
Page 76: ...Horizontal Operation In Detail 3Ć30 Horizontal Operation In Detail 3Ć30 ...
Page 96: ...Probes In Detail 3Ć50 Probes In Detail 3Ć50 ...
Page 106: ...Saving and Recalling Data In Detail 3Ć60 Saving and Recalling Data In Detail 3Ć60 ...
Page 108: ...Store Mode In Detail 3Ć62 Store Mode In Detail 3Ć62 ...
Page 124: ...Vertical Operation In Detail 3Ć78 Vertical Operation In Detail 3Ć78 ...
Page 127: ...Appendices Appendices ...
Page 128: ......
Page 170: ...Appendix C Quick Checks Appendices AĆ42 Appendix C Quick Checks Appendices AĆ42 ...
Page 210: ...Appendix F Accessories Appendices AĆ82 Appendix F Accessories Appendices AĆ82 ...
Page 211: ...Glossary Index Glossary Index ...
Page 212: ......
Page 230: ...Index Index IĆ10 Index Index IĆ10 ...
Page 231: ......
Page 232: ......