Rion DA-21, Инструкция по эксплуатации

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Preparations
Trigger conditions
The trigger operation is determined by the trigger mode and trigger type.
When the trigger type is set to “Level”, the trigger level and trigger channel
must be set. For the “Time” trigger the start/stop time and interval must be
set. Only trigger events that occur while the DA-21 is in the trigger standby
condition are valid. Any trigger events that occur while data recording is in
progress are disregarded.
Setting the trigger mode
This setting determines the basic trigger operation.
Make the trigger mode setting using the “Mode” item in <Trigger> menu.
If the trigger function is not required, select the “Free” setting.
Free (trigger off)
Recording starts immediately when the [REC] key is pressed and
ends when the amount of data corresponding to the recording
time has been recorded.
Single (single trigger)
The unit goes into trigger standby mode when the [REC] key
is pressed. When a trigger event occurs, recording starts. When
the amount of data corresponding to the recording time has been
recorded, recording stops.
Repeat (repeat trigger)
The unit goes into trigger standby mode when the [REC] key
is pressed. When a trigger event occurs, recording starts. When
the amount of data corresponding to the recording time has been
recorded, the unit again goes into trigger standby mode and the
operation is repeated.
Note
Repeat setting is possible also when the Recording
Time is set to Manual. But the trigger operation is
carried out only once.