EZ Digital DS-1000 Series, Operation Manual

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AC : Only AC component is passed through in the signal and DC
component Is removed from the trigger signal.
DC : Trigger signal which includes DC signal is coupled. Trigger is applied
when DC level of signal intersects with setting trigger level.
HF Reject (High frequency rejection) : This function interrupts a high
frequency component of triggering signal. So, only the low frequency
component is passed through triggering system and then captured.
Interruption of high frequency reduces a signal with 300kHz or more.
LF Reject (Low frequency rejection) : This function interrupts low
frequency component of triggering signal. Interruption of low frequency
reduces a signal with 1kHz or less.
Slope(Rising/Falling) : This function decides at which place the trigger
point is found out, rising edge or falling edge. This function displays a status
of slope setting behind "coupling". Screen display of rising edge is " " and
falling edge is " "
Mode(Auto/Normal/Single) : When MODE function is pressed, AUTO,
NORM and SINGLE are displayed in sequence. Setting of trigger mode is
displayed at the top left of the screen.
Auto : Without trigger, waveform is able to be captured by this function.
When AUTO mode is triggered forcibly without triggering, note that
It is not synchronized with the waveform of display. In other words,
successive capture is not triggered at same point on display.
Therefore, waveform seems to cross and roll on the screen.
Normal : When Trigger is operated, oscilloscope is able to capture the
waveform by this function. Without trigger , oscilloscope does not
capture the waveform.
Single : Trigger is able to be operated with NORM mode. However,
when trigger is operated in long period or non-periodic signal, it is in the
status of STOP, and when trigger is not operated, oscilloscope is
In stand-by status until the trigger is restarted.
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