User`s guide

RIGOL Chapter 3 To Set the Horizontal System
DS1000Z User’s Guide
3-8
Roll Mode
In this mode, the waveform scrolls from the right to the left to update the display and
the waveform horizontal position and trigger control are not available. The range of
horizontal scale adjustment is from 200.0 ms to 50 s.
Note: When Roll mode is enabled, the “horizontal position”, “Delayed Sweep”,
“Protocol Decoding”, “Pass/Fail Test”, “Waveform Record”, “To Set the Persistence
Time” and “To Trigger the Oscilloscope” are not available.
Slow Sweep
Another mode similar to Roll mode. When the horizontal time base is set to 200
ms/div or slower, the instrument enters “slow sweep” mode in which the instrument
first acquires the data at the left of the trigger point and then waits for trigger
event. After the trigger occurs, the instrument continues to finish the waveform at
the right of the trigger point. When slow sweep mode is used to observe low
frequency signal, it is recommended that the “Channel Coupling” is set to “DC”.