Roll mode, Vertical settings and channel controls, Adjusting sensitivity and position – Teledyne LeCroy WaveRunner XI SERIES Operator’s Manual User Manual

Page 53: Sensitivity adjustment, Ertical, Ettings and, Hannel, Ontrols

PERATOR

’

ANUAL

Roll Mode

• Roll mode can be selected when the timebase mode is real time, time per division is > 200 ms/div, and the

sampling rate is < 200 kS/s.

• Roll mode is not selected automatically when the above criteria are met. You must select Roll mode manually

from the

Timebase dialog each time you want to invoke it.

• Roll mode displays, in real time, incoming points in single-shot acquisitions that have a sufficiently low data

rate. The oscilloscope rolls the incoming data continuously across the screen until a trigger event is detected
and the acquisition is complete. The parameters or math functions connected to each channel are updated
every time the roll mode buffer is updated, as if new data is available. This resets statistics on every step of
Roll mode that is valid because of new data.

Note: If the processing time is greater than the acquire time, the data in memory gets overwritten. In this case,
the instrument issues the warning: Channel data is not continuous in ROLL mode!!! and rolling will start over
again.

VERTICAL SETTINGS AND CHANNEL CONTROLS

Adjusting Sensitivity and Position

Sensitivity Adjustment

1. Touch

Vertical in the menu bar, then Channel 1, for example, in the drop-down

menu.

Touch inside the

Trace On checkbox to display the trace. Or, use the

VERTICAL front panel buttons to turn it on.

2. Turn the volts per division knob. Or you can touch inside the

Volts/Div field and

type in a value using the pop-up keypad.

3. The voltage that you set is displayed in the

Volts/Div field and in the trace

descriptor label.

WRXi-OM-E Rev C