Operating Basics
Position. Adju
sts the horizontal position of all channel and math waveforms. The
resolution of this control varies with the time base setting.
NOTE. To make a large adjustment to the horizontal position, turn the Horizontal
Scale knob to a larger value, change the horizontal position, and then turn the
Horizontal Scale knob back to the previous value.
Horiz. Displays the Horizontal Menu.
Set to Zero. Sets the horizontal position to zero.
Scale. Se
lects the horizontal time/division (scale factor) for the main or the
window time base. When Window Zone is enabled, it changes the width of the
window zone by changing the window time base.
Trigger Controls
Level. When you use an Edge or Pulse trigger, the Level knob sets the amplitude
level that the signal must cross to acquire a waveform.
Trig Menu. Displays the Trigger Menu.
Se
tTo50%. The trigger level is set to the vertical midpoint between the peaks of
the trigger signal.
Force Trig. Completes an acquisition regardless of an adequate trigger signal.
This button has no effect if the a cquisition is already stopped.
Trig View. Displays the trigger waveform in place of the channel waveform while
you hold down the Trig View button. Use this to see how the trigger settings
affect the trigger signal, such as trigger coupling.
20 TBS1000 Series Oscilloscopes Installation and Safety Manual
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