RIGOL MSO/DS2000A Series - Manual (Page 62)

RIGOL Chapter 2 To Set the Vertical System
2-6 MSO2000A/DS2000A User’s Guide
Vertical Scale
Vertical scale refers to the voltage value per grid in the vertical direction on the
screen and is usually expressed as V/div.
Press CH1  Volts/Div to select the desired adjustment mode of the vertical scale,
or press VERTICAL SCALE to switch the adjustment mode quickly.
 Coarse adjustment: set the vertical scale in 1-2-5 step namely 500 μV/div, 1
mV/div, 2 mV/div, 5 mV/div, 10 mV/div…10 V/div (take counterclockwise as an
example).
 Fine adjustment: further adjust the vertical scale within a relatively smaller
range to improve vertical resolution. If the amplitude of the input waveform is a
little bit greater than the full scale under the current scale and the amplitude
would be a little bit lower if the next scale is used, fine adjustment can be used
to improve the amplitude of waveform display to view signal details.
After the adjustment mode is selected, rotate VERTICAL
SCALE to adjust the
vertical scale (clockwise to reduce the scale and counterclockwise to increase). The
scale information in the channel status label (as shown in the figure below) at the
bottom of the screen will change accordingly during the adjustment. The adjustable
range of the vertical scale is related to the probe ratio and input impedance currently
set. By default, the probe ratio is 1X, the input impedance is 1 MΩ and the adjustable
range of the vertical scale is from 500 μV/div to 10 V/div.
When adjusting the vertical scale, the waveform will be expanded or compressed
around the center of the screen or the ground level of the signal according to the
change of the vertical scale.