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4.2.1 Scan Mode Display (Roll Mode)
With the TIME/DIV control set to 80ms/div or slower and the trigger mode set to Auto, the oscilloscope
works in the scan acquisition mode. In this mode, the waveform display is updated from left to right
without any trigger or horizontal position control.
4.3 Vertical Controls
Vertical controls can be used to display and remove waveforms, adjust vertical size and position of the
signal, set input parameters and perform math calculations. Each channel has a separate vertical menu.
See below for menu description.
1. VERTICAL POSITION Bar: Move the channel waveform up and down on the screen. In
dual-window mode, move the waveforms in both windows at the same time in the same direction.
2. Menu (CH1, CH2): Display vertical menu options; turn ON or OFF the display of channel
waveforms. Press the MENU button to turn on the Menu. Press the CH1 or CH2 button to select
the channel you want to adjust. Press the F5 key to switch from Menu page 1 to page 2.
Options Settings Comments
Coupling (F1)
(menu page 1)
DC
AC
Ground
DC passes both DC and AC components of the input signal.
AC blocks the DC component of the input signal and
attenuates signals below 10Hz.
Ground disconnects the input signal and applies a zero volt
input.
20MHz Bandwidth Limit
(F2)
(menu page 1)
OFF
ON
Limits the bandwidth to reduce display noise; filters the
signal to eliminate noise and other unnecessary HF
components.
VOLTS/Div (F3)
(menu page 1)
Coarse
Fine
Selects the resolution of the VOLTS bar.
‘Coarse’ defines a 1-2-5 sequence. ‘Fine’ changes the
resolution in smaller steps between the Coarse settings.
Probe Attenuation (F4)
(menu page 1)
1X
10X
100X
1000X
Select a value to match the probe attenuation factor so as to
ensure correct vertical readouts. Reduce bandwidth to
6MHz when using a 1X probe.
