Hantek DSO1000E Series User Manual page 35

Type
positive
Polarity
Negative
Overtime 20ns to 10.0sec
Coupling Noise Reject
HF Reject
LF Reject
Overtime 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 Settings
Type
Source
Positive
Polarity
Negative
Mode
Normal
Overtime
Coupling Noise Reject
HF Reject
LF Reject
50%
Holdoff: To use Trigger Holdoff, push the HORI button and set the Holdoff Time option. The
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. During the holdoff time, the 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
DSO1000E Series HandHeld Oscilloscope User Manual
O.T.
Set the time span.
AC
DC
Selects the components of the trigger signal applied to the
trigger circuitry.
O.T.
CH1
Select the trigger source.
CH2
Select to trigger on positive or negative pulses.
Auto
AC
DC
Selects the components of the trigger signal applied to the
trigger circuitry.
Acquisition Interval
Holdoff
Comments
Acquisition Interval
Holdoff
Basic Operation
30