Tenma 72-2650 Operating Manual page 59

72-2650/72-10510/72-8225A /72-8705A/72-8710A user manual
manually set the trigger level to the centre; or change
the trigger mode to AUTO
②. Or press AUTO button next to the RUN/STOP
button, the above setting will be completed automatically.
6. The waveform is refreshing slowly:
①. Check if the Acquire mode is in "Average" mode
②. In "Average" mode, waveform is refreshing slowly
because it displays the average value of the waveform
to reduce the random noise in displayed signal.
③. Change to "Sample" mode or "Peak" mode for the
desired display.
7. The waveform display does not smooth out.
①. The horizontal time division value may be too small,
increase the horizontal time base division to improve
the waveform smoothness.
②. If the display type is "Vector", the signal waveform may
not smooth between the dots. This can be improved by
setting the display type to "Dot" mode.
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