Reference
Help
Push the Help button to d isplay the Help menu. The topics cover all the menu
options and controls of the oscilloscope. (See p age xiv, Help System.)
Horizontal
You can use the horizontal c ontrols to set up two views of a waveform, each with
their own horizontal scale and position. The horizontal position readout shows
the time represented by the center of the screen, using the time of the trigger
as zero. When you change the horizontal scale, the waveform will expand or
contract around the screen center.
Options Comments
Main The main horizontal time base setting is used to display the
waveform
Window Zone
Tw o cursors define a window zone
Adjust the window zone with the Horizontal Position and
Horizontal Scale controls
Window
Changes the display to show the waveform segment (expanded
to screen width) within the window zone
Set Holdoff Displays the holdoff value; push the option button and use the
multipurpose knob to adjust
NOTE. You can push the horizontal option buttons to switch between an entire
waveform display and a zoomed part of it.
A readout near the top right of the screen displays the current horizontal position
in seconds. An M indicates the Main time base and a W indicates the Window
time base. The oscilloscope also indicates horizontal position with an arrow icon
at the top of the graticule.
Knobs and Buttons
Horizontal Position Knob. Use to control the position of the trigger relative to
the center of the screen.
The trigger point can be set to the left or the right of the center of the screen. The
maximum number of divisions to the left depends on the Horizontal Scale (time
base) setting. For most scales, the maximum is at least 100 divisions. Placing the
trigger point off the screen to the left is called D elayed Sweep.
Set To Zero Button. Use to set the horizontal position to zero.
Horizontal Scale Knob (seconds/division). Use to change the horizontal time scale
to magnify or compress the waveform.
86 TDS2000C and TDS1000C-EDU Series Oscilloscope User Manual