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UTD2000 Series User Manual
30
Rising <
The DSO generates a trigger when the slew rate of rising edge of signal is
lower than the specified slew rate.
Rising <>
The DSO generates a trigger when the slew rate of rising edge of signal is
higher than the specified lower-limit slew rate and lower than the specified
upper-limit slew rate.
Descending >
The DSO generates a trigger when the slew rate of descending edge of signal
is higher than the specified slew rate.
Descending <
The DSO generates a trigger when the slew rate of descending edge of signal
is lower than the specified slew rate.
Descending <>
The DSO generates a trigger when the slew rate of descending edge of signal
is higher than the specified lower-limit slew rate and lower than the specified
upper-limit slew rate.
Time setting
The slope time is set at 20ns～10s, adjust the time through the multifunctional
knob on front panel.
Threshold
High level
Low level
High-low level
Adjust high-level threshold of slope trigger through the LEVEL knob on trigger
control area.
Adjust low-level threshold of slope trigger through the LEVEL knob on trigger
control area.
Through the LEVEL knob on trigger control area, adjust high-level & lowl-level
threshold of slope trigger at the same time.
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4.4 Video trigger
After the video trigger is selected, the DSO generates a trigger on the field or line of NTSC
or PAL standard video signal. Trigger coupling will be preset to DC coupling. Video trigger
menus are shown in the table below:
Tabel 4-6 Video trigger menu
Function
Menu
Setting
Description
Type
Viedo
Source
CH1
Set CH1 as the triggering signal source
CH2
Set CH2 as the triggering signal source
Video Setting
Enter video setting menu
Table 4-6 Video setting menu
Function
Menu
Setting
Description
Standard
PAL
Applicable to PAL video signal.
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