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Chapter 13 Additional Function Keys
13.1 Auto Setting
Function
CH1
Vertical Displacement
Coupling
Bandwidth Limitation
VOLTS/DIV
Probe
Invert
Automatic settings will according to the input signal, choose appropriate time base scales, amplitude scales, and triggering parameters so that the waveform
automatically properly displays on the screen. Press the AUTO key to enable automatic settings.
Automatic setting applies only to the following conditions:
① Automatic setting is suitable for setting up simple single frequency signals, and not for complex combination waves.
② The measured signal frequency is not less than 10Hz, the amplitude is not less than 20mVpp, and the square wave duty cycle is more than 5%.
③ The automatic setting is only for the open channels and not for the closed channels.
13.2 Run / Stop
Use the RUN/STOP key on the front panel for control. When the key is pressed and the green light is on, it indicates the RUN state, and if the red light is
on after the key press, it is the STOP state. In the running state, the oscilloscope is continuously acquiring waveforms and the upper part of the screen shows
“AUTO”; in the stop state, the oscilloscope stops the acquisition and the upper part of the screen shows “STOP”. Press the RUN/STOP key to switch the
waveform sampling between the run and stop states.
13.3 Clear
Press the CLEAR button on the front panel of the oscilloscope to clear the loaded REF waveform on the screen.
13.4 Factory Setting
By pressing the DEFAULT button, you can quickly restore to factory settings. UPO3000E series oscilloscope factory settings are as below:
Factory Setting
1V/DIV
0 (vertical midpoint)
DC
Off
Coarse tuning
1×
Off
System
Vertical System
54
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