Vertical Controls 3
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 81
To adjust the vertical scale
1 Turn the large knob above the channel key marked to set the vertical
scale (volts/division) for the channel.
You can also do this using the touchscreen. See “Turn Channels On/Off and
Open Scale/Offset Dialogs" on page 55.
The vertical scale knob changes the analog channel scale in a 1-2-5 step
sequence (with a 1:1 probe attached) unless fine adjustment is enabled (see “To
change the vertical scale knob's coarse/fine adjustment setting" on page 83).
The analog channel Volts/Div value is displayed in the status line.
The default mode for expanding the signal when you turn the volts/division knob
is vertical expansion about the ground level of the channel; however, you can
change this to expand about the center of the display. See “To choose "expand
about" center or ground" on page 347.
To adjust the vertical position
1 Turn the small vertical position knob ( ) to move the channel's waveform up or
down on the display.
You can also make this adjustment using the touchscreen. See “Change
Waveform Offsets By Dragging Ground Reference Icons" on page 53 and “Turn
Channels On/Off and Open Scale/Offset Dialogs" on page 55.
The offset voltage value represents the voltage difference between the vertical
center of the display and the ground level ( ) icon. It also represents the voltage
at the vertical center of the display if vertical expansion is set to expand about
ground (see “To choose "expand about" center or ground" on page 347).
To specify channel coupling
Coupling changes the channel's input coupling to either AC (alternating current)
or DC (direct current).
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