UTD1000 User Manual
the questionable channel to find the cause).
Ļ
Restart the acquisition process.
3.The measurement voltage amplitude value is 10 times
larger or smaller than the actual value :
ķ
Check if the channel attenuation factor corresponds
with the probe attenuation you have chosen.
4.There is waveform display but it is not stable :
ķ
Check the trigger source setup in the trigger menu.
See whether it is the same as the actual signal input
channel.
ĸ
Check the trigger type : Use edge trigger for ordinary
signals and video trigger for video signals. Stable
waveform display is achieved only when the correct
trigger mode is selected.
Ĺ
Try changing the coupling display to high frequency
suppression or low frequency suppression to filter
any high or low frequency noise that is interfering with
triggering.
5.No display after pressing [RUN/STOP] :
ķ
Check if the trigger mode is set to normal or single in
the menu, and whether the level exceeds the waveform
range. If so, move the level to the centre or set trigger
mode to AUTO.
ĸ
Press [AUTO] to complete the setup.
6.Display speed is slow after average sampling time is
enabled :
ķ
If average sampling is carried out for more than 32
times, the display speed will drop. This is normal.
ĸ
You can reduce the intervals of average sampling.
7.Trapezoidal waveform display :
ķ
This is normal. The reason is possibly horizontal
time base range is too low. You can improve horizontal
pixel aspect ratio and enhance the display quality by
increasing the horizontal time base.
ĸ
If the display type is vector, the connection between
sampling dots may cause a trapezoidal waveform. Set
the display type to dot to solve this problem.
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