Owon PDS5022S User Manual page 53

User's Manual of OWON Colour Digital Storage Oscilloscope
12. Press F3 menu selection button and choose video for type.
13. Press F4 menu selection button and choose line for sync.
14. Press F5 menu selection button to next menu.
15. Press F2 menu selection button and choose NTSC for modulation.CH2 trigger
complete set.
After Acquire waveform is shown as Fig.42
Fig.42 Alterate trigger waveform
Term interpretation
Trigger modes: There are three kinds of trigger modes available for this oscilloscope,
which is, auto, normal and single .
Automatic trigger mode: The oscilloscope can acquire the waveform without any
triggering condition detected in this mode, in which it will be triggered compulsively
when waiting for a specified period of time without any triggering condition ignited When
an invalid trigger is enforced，the oscilloscope can not keep the waveform in phase.
Normal trigger mode: In this mode, the oscilloscope cannot acquire the waveform till it
is triggered. When there is not any trigger, the oscilloscope will display the origin
waveform without new waveforms captured.
Single shot mode: In this mode, the oscilloscope will detect a trigger and capture a
waveform at each time when the customer presses the RUN/STOP key.
Sensitivity: Trigger circuit including sluggish in order to exclude the influences from
signal noise and get the stable trigger. The sluggish is adjustable among 0.2div~1.0div. It
means when set on 1.0 div trigger circuit don't have any response to any signal of PK-PK
range ≤1.0div which to exclude the influences from signal noise.
Holdoff:A time interval before the oscilloscope responses to next trigger signal.During
51