Autoscale Key
The Autoscale key causes the oscilloscope to quickly analyze the signal.
Then, it sets up the vertical, horizontal, and trigger to best display that signal.
Autoscale can find repetitive signals with a frequency greater than or equal to
50 Hz, a duty cycle greater than one percent, and an amplitude of 50 mV p-p
or greater.
Autoscale looks for signals on all channels, even if they are turned off. Also,
autoscale searches for a trigger signal on the external trigger inputs before
searching the channel inputs for a trigger signal.
You may find situations where you have pressed the Autoscale key
unintentionally. When this happens, you can use the Undo Autoscale key to
return the oscilloscope to the settings prior to pressing the Autoscale key.
To undo an Autoscale
Press the blue shift key, then press the Autoscale key again.
Clear Display Key
The Clear display key erases all channel and function waveform data from the
graticule area, and it resets all associated measurements and measurement
statistics.
When the oscilloscope is stopped
If the oscilloscope is stopped, the display remains cleared of waveform data
until the trigger circuit is rearmed and the oscilloscope is triggered. Then,
the new data is displayed and measurements are recalculated.
When the oscilloscope is running
If the oscilloscope is running, new waveform data is displayed on the next
acquisition and all measurements are recalculated.
Front-Panel Features
Autoscale Key
2–3
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