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5. Press the Standard softkey to select the desired video standard. The series of scope support the
following video standards: PAL and NTSC.
6. Press the Sync softkey, then turn the Multifunctional Knob to select field or line.
7. Press the Line Num softkey and turn V0 to set the line number in the field to be triggered.
8. Press the Mode softkey, turn V0 to select the trigger mode (auto, normal), and press V0 to confirm.
Auto: When the oscilloscope meets the trigger condition, it completes a trigger acquisition once; when
the trigger condition is not met, it can run the acquisition waveform freely.
Normal: When the oscilloscope meets the trigger condition, the input waveform is displayed; when the
trigger condition is not met, the original waveform is displayed.
9. Press the Holdoff softkey and turn V0 to set the time that the oscilloscope waits before a trigger to
the next trigger, so that complex waveforms are displayed stably.
2.7.4. Slope Trigger
The slope trigger looks for a rising or falling transition from one level to another level in the specified
time range. In the series of scope, positive slope time is defined as the time difference between the two
crossing points of trigger level line A and B with the positive edge as shown in the figure below.
1. Press the [Trig Menu] button on the front panel to enter the Trigger function menu.
2. Press the Type softkey, turn the Multifunctional Knob to set select Slop and then press the knob to
confirm.
3. Press the Source softkey, turn the Multifunctional Knob to select CH1~CH2 as the trigger source.
4. Press the Slop softkey, turn the Multifunctional Knob to set select the desired trigger edge (rising or
falling), and then push down the knob to confirm.
5. Press the Level softkey and press of Lower Upper softkey to select Lower(V2) or Upper(V1) the
trigger level; then turn the Trigger Level Knob to adjust the position. The trigger different level value
between Upper and Lower is displayed at the upper right corner of the screen.
The Lower trigger level cannot be upper than the upper trigger level. V1 means the upper trigger level
while V2 means the lower trigger level.
6. Press the When softkey, then turn the Multifunctional Knob to select the desired slope condition,
and push down the knob to confirm.
< (less than a time value): trigger when the positive or negative slope time of the input signal is lower
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