Digital Storage Oscilloscope 27
the input signal is lower than the specified time value.
> (greater than a time value): trigger when the positive or negative slope
time of the input signal is greater than the specified time value.
!=(not equal to a time value): trigger when the positive or negative slope time
of the input signal is not equal to the specified upper limit of time and lower
than the specified lower limit of time value..
=(equal to a time value): trigger when the positive or negative slope time of
the input signal is equal to the specified upper limit of time and lower than
the specified lower limit of time value.
2.8.1.5 Overtime Trigger
Trigger when the time interval (△ T) from when the rising edge (or falling edge) of the
input signal passes through the trigger level to when the neighboring falling edge (or
rising edge) passes through the trigger level is greater than the timeout time set, as
shown in the figure below.
1. Press the [TRIG MENU] button on the front panel to enter the TRIGGER system
function menu.
2. Press the Type softkey, then use the Universal Knob to select Overtime and push
down the knob to confirm.
3. Press the Source softkey, turn the Universal Knob to select CH1~CH4 as the
trigger source. Select channel with signal input as trigger source to obtain stable
trigger.
4. Press the Polarity softkey to select Positive or Negative edge.
5. Press the Time softkey, turn the Universal Knob to select the desired value.
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