User`s guide

Chapter 2 Front Panel Operations RIGOL
M300 User’s Guide
2-3
(each English letter or number occupies 1 byte and each Chinese character
occupies 2 bytes).
To modify the name of the scan list created, please select Scan List firstly and
press OK to enter the filename input interface.
2 Sweep Count
Select Sweep using the up/down direction keys and select “Infinite” or “1” (you
need to set a value) using the left/right direction keys.
 Infinite: execute continuous scan. You can press and hold Run/Stop to
stop the scan.
 Number of Scans: you can use the numeric keyboard to set a value. The
range is from 1 to 50000. After executing the specified number of scans, the
instrument stops scanning automatically.
3 Trigger Mode
Select TrigMode using the up/down direction keys and select “Auto”, “Manual”,
“External”, “AbsTime” or “Alarm” using the left/right direction keys.
 Auto: the instrument executes infinite scan or the specified number of
scans at the specified interval automatically.
 Manual: the instrument executes a scan when you press Run/Stop.
 External: the instrument executes a scan when the external trigger signal
input interface receives a TTL trigger pulse.
 AbsTime: the instrument executes a scan when the system time reaches the
specified time.
 Alarm: the instrument executes a scan when an alarm is generated from the
specified alarm channel.
For details of the trigger mode, refer to “Trigger Mode”.
4 Interval
Interval is defined as the time interval between the start of a scan to the start of
the next scan in auto scan mode as shown in the figure below. When the trigger
mode is “Auto”, select Interval using the up/down direction keys and use the
numeric keyboard to set a desired interval. The range is from 00:00:00.000 to
99:59:59.999 (the time format is Hour:Minute:Second.Millisecond) and the
default is 00:00:00.000.
……
Interval
A Scan