User`s guide

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Using the Oscilloscope
Oscilloscope Common Menus
Autoscale
Autoscale is an algorithm that automatically optimizes the display of
one or more waveforms. When you select the Autoscale field and
choose Continue, the autoscale algorithm starts.
What the Autoscale algorithm does when a signal is found
The autoscale algorithm first checks all input channels to determine
whether or not there are any signals present. The vertical scaling is
then set as required for each channel. Next the time base is scaled for a
single input channel, the trigger channel is selected, the data is
acquired, and the waveforms are displayed.
Finding the vertical settings. The autoscale algorithm sets the
vertical scaling (V/Div and offset) appropriate to the input signal for
channel 1. This process is repeated for channel 2.
Finding the time base settings. The time base settings (s/Div and
delay) are determined based on the input signal of Channel 1 (if active)
or Channel 2. The time base is scaled so that between two and five
complete cycles of the time base scaling source input signal can be
seen on the screen. The trigger settings are also changed by the
autoscale algorithm and an edge mode trigger with CHAN 1 or CHAN 2
is selected. The channel selected for time base scaling is selected as
the trigger source.