UTD2000 Series User Manual
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display is achieved only when the correct trigger mode is selected.
③ Try changing the trigger coupling to High Frequency Holdoff or Low
Frequency Holdoff or to filter any high or low frequency noise that is interfering with
triggering.
(4) Slow refresh
①. Check if the acquiring mode in ACQUIRE button menu is average, and
the average times are large.
②. If increasing the refresh speed is needed, please decrease the average
times appropriately or select other acquiring modes, i.e. normal sampling.
③. Check if the persistence in DISPLAY button menu is set relatively long or
infinite.
(5) The waveform is like stair-step shape.
①. Stair-step waveform is normal. The horizontal time-base scale may be is
overlow, increase the horizontal time base to increase the horizontal
resolutuion, which can improve the display.
②. The display type may be vector, the connecting line between sampling
points may lead to a stair-step shape. Set the display type as point display
to solve the problem.