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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
32
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Time 20ns to 10 .0 sec
Press F4 to select this option. Turn the multi-functional knob
to set the time span.
Overtime
Overtime
Overtime
Overtime Trigger:
Trigger:
Trigger:
Trigger: In Pulse Width trigger, you may sometimes be puzzled with the long time for
trigger, as you do not need a complete pulse width to trigger the oscilloscope, but want the trigger
occurs just upon the overtime point. This is called Overtime Trigger.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Type OT
Source
CH1
CH2
Select the trigger source.
Polarity
Positive
Negative
Select to trigger on positive or negative pulses.
Mode
Auto
Normal
Overtime t
Press F5 to select Overtime option and adjust V0 to set the
time.
Coupling
AC
DC
HF Reject
LF Reject
Selects the components of the trigger signal applied to the
trigger circuitry .
Holdoff:
Holdoff:
Holdoff:
Holdoff:
To
use Trigger Holdoff, push the HORIZONTAL Menu button and set the Holdoff Time
option by pressing F4. T he Trigger Holdoff function can be used to generate a stable display of
complex waveforms ( such as pulse trains ) . Holdoff is the time between when the oscilloscope
detects one trigger and when it is ready to detect another. D uring the holdoff time , t he oscilloscope
will not trigger. For a pulse train, the holdoff time can be adjusted to let the oscilloscope trigger only
on the first pulse in the train.
Trigger Level
Indicates
Trigger Points
Holdoff
Holdoff
Acquisition I nterval
Acquisition I nterval
5.5
5.5
5.5
5.5 Menu
Menu
Menu
Menu and
and
and
and Option
Option
Option
Option Buttons
Buttons
Buttons
Buttons
As shown below, these six buttons at the top of the front panel are used mainly to recall relative
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