UNI-T UTD2000M, Руководство по эксплуатации

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UTD2000M User Manual
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Trigger occurs when the pulse width of an input signal is
larger than the preset pulse width time;
Trigger occurs when the pulse width of an input signal
equals the preset pulse width time;
Pulse Width Time
20.0ns
～
10.0s 20.0ns
～
10.0s;
Trigger pulse width is set between 20.0ns
～
10.0s using
“MULTIPURPOSE” knob
Return —— Return to “pulse width triggering” menu
2.4.3 Video Triggering
Once video triggering is selected, it allows triggering occurs at the field or row of a standard video signal in
NTSC or PAL format. Trigger coupling is preset to be DC. See below table for menu introduction.
Table 2 ‐ 11 Video Triggering
Menu Setting Description
Type Video
Signal Source CH1
、
CH2
EXT
、
EXT/5
Set CH1 or CH2 as the source of trigging
signal.
Set external triggering or the quotient of
dividing external triggering signal by 5 as the
signal source
Video Setting See Table 2 ‐ 12 Enter into video setting
Table 2 ‐ 12 Video Setting
Menu Setting Description
Video Format NTSC
PAL
NTSC format video signal
PAL format video signal
Synchronization Odd Field
Even Field
All Rows
Specific Row
Set to trigger at the odd field;
Set to trigger at the even field;
Set to trigger synchronization on row signal;
Set to trigger synchronization on a specific row signal;
Use “MULTIPURPOSE” to adjust; PAL format, 625 rows,
NTSC format: 525 rows
When video format is chosen to be PAL and in row synchronization, the screen display is shown in Fig. 2 ‐ 19
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