UNI-T UTD2000M, Руководство по эксплуатации

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UTD2000M User Manual
Less amplitude trigger can be used to trigger the pulse signal that has passed one trigger level but has failed to
pass another one.
Less amplitude triggering can only accept those triggers aroused by pulses within two prescribed amplitudes for
both entry and exit.
Following is the operation steps explained by taking a specific case as an example:
1
、
Press MENU key located in the trigger control area to enter into trigger type menu;
2
、
Then press F1 and use “
MULTIPURPOSE
” knob to select less amplitude pulse in the ejected menu, then press “SELECT”
to confirm the selection;
3
、
Press F2 to set signal source as CH1;
Now the waveform we see can not be triggered stably;
4
、
Press F3 to select high and low level respectively, and use trigger level knob to adjust the corresponding high and low level
separately;
5
、
Press F5 to enter into less amplitude pulse settings;
Less amplitude pulse settings:
1
、
Press F1 to select positive or negative polarity;
2
、
Press F2 to select specific trigger condition (select “
＞
” as for this case), and then use “MULTIPURPOSE” knob to set a specific
trigger time.
Fig 3 ‐ 12 Less Amplitude Pulse Trigger (Positive Polarity)
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