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Automatic setting of scanning parameters
Automatic setting provides users with stable waveform display. This function will automatically set the
vertical/horizontal amplitude and the trigger level and trigger mode. If you need to observe the signals in certain
circuits without knowing its amplitude and frequency and hope to fast obtain the waveform display and measure its
parameters i.e. frequency, cycle and amplitude, you may follow the following steps for automatic setting:
1. Connect the probe to the test point of signals.
2. Press “R” button
The scopemeter will automatically set the vertical/horizontal amplitude and the trigger level. If you need to
optimize the display of waveform, you may make further adjustment manually.
If the instrument cannot find appropriate scanning parameters, it will display “AUTO SET FAIL” and exit
automatic setting. The instrument will display the waveform in accordance with the original scanning parameters.
Instructions!
The automatic setting of scanning parameters is most effective for stable periodic signals. Due to
aliasing effect, when the frequency of tested signals is close to or exceeds the upper limit of the
frequency of the instrument, the scopemeter may selects a wrong time base. User has to be careful
when using this function and observe whether the display result after automatic setting is
reasonable.
