Promax OD-610 User Manual page 42

Normal: The Normal mode allows the oscilloscope to acquire a
waveform only when it is triggered. If no trigger occurs, the oscilloscope
keeps waiting, and the previous waveform, if any, will remain on the
display. Single: In Single mode, after pressing the Run/Stop key, the
oscilloscope waits for trigger. While the trigger occurs, the oscilloscope
acquires one waveform then stop.
Single: In Single mode, after pressing the Run/Stop key, the
oscilloscope waits for trigger. While the trigger occurs, the oscilloscope
acquires one waveform then stop.
Coupling
►
Trigger coupling determines what part of the signal passes to the trigger
circuit. Coupling types include AC, DC, LF Reject and HF Reject.
AC: AC coupling blocks DC components.
DC: DC coupling passes both AC and DC components.
LF Reject: LF Reject coupling blocks DC component, and attenuates all
signal with a frequency lower than 8 kHz.
HF Reject: HF Reject coupling attenuates all signals with a frequency
higher than 150 kHz.
Holdoff: Trigger holdoff can be used to stabilize a waveform. The holdoff
►
time is the oscilloscope's waiting period before starting a new trigger. The
oscilloscope will not trigger until the holdoff time has expired. It provides a
chance for user to check the signal in a short period and helps to check
some complex signals, such as AM waveform etc.
Trigger Control
►
The oscilloscope provides two trigger types: single trigger and alternate
trigger.
Single trigger: Use a trigger level to capture stable waveforms in two
channels simultaneously.
Alternate trigger: Trigger on non-synchronized signals.
The Single Trigger and Alternate Trigger menus are described respectively as
follows:
June 2017
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