Keysight Technologies InfiniiVision 3000 X Series, Руководство пользователя

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58 Keysight InfiniiVision 3000 X-Series Oscilloscopes User's Guide
2
Horizontal Controls
To position the time reference (left, center, right)
Time reference is the reference point on the display for delay time (horizontal
position).
1 Press [Horiz] .
2 In the Horizontal Menu, press Time Ref ; then, select:
• Left — the time reference is set to one major division from the left edge of the
display.
• Center — the time reference is set to the center of the display.
• Right — the time reference is set to one major division from the right edge of
the display.
A small hollow triangle (
∇
) at the top of the display grid marks the position of the
time reference. When delay time is set to zero, the trigger point indicator (
▼
)
overlays the time reference indicator.
The time reference position sets the initial position of the trigger event within
acquisition memory and on the display, with delay set to 0.
Turning the Horizontal scale (sweep speed) knob expands or contracts the
waveform about the time reference point (
∇
). See "To adjust the horizontal
(time/div) scale" on page 50.
Turning the Horizontal position ( ) knob in Normal mode (not Zoom) moves the
trigger point indicator (
▼
) to the left or right of the time reference point ( ∇ ). See
"To adjust the horizontal delay (position)" on page 51.
Searching for Events
You can use the [Search] key and menu to search for Edge, Pulse Width, Rise/Fall
Time, Runt, and Serial events on the analog channels.
Setting up searches (see "To set up searches" on page 59) is similar to setting up
triggers. In fact, except for Serial events, you can copy search setups to trigger
setups and vice-versa (see "To copy search setups" on page 59).
Searches are different than triggers in that they use the measurement threshold
settings instead of trigger levels.