Rion DA-21, Инструкция по эксплуатации

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47
Menu Operations and Setting Items
Type Trigger signal type setting
Determines the type of trigger signal. When the “Mode” item is set to
“Free”, this item does not appear.
Level A trigger event occurs and recording is started when the level
of the input signal in the specifi ed channel (trigger channel)
becomes a preset value (trigger level) or higher.
External
A trigger event occurs and recording is started when the Ext.
Trig. connector is shorted.
External Gate
Recording is carried out only while the Ext. Trig. connector is
shorted (gate trigger operation). When the Ext. Trig. connec-
tor goes open, recording will stop after a delay of 5 seconds
(post-recording).
Time Recording is carried out from the specifi ed Start Time to the
specifi ed Stop Time, at intervals as specifi ed by the Interval
setting.
Level Trigger level setting
When the trigger signal type is “Level”, a trigger event occurs when the
absolute value of the input signal waveform exceeds the trigger level. The
trigger level is a threshold set as a relative percentage [%] correlated to
the full-scale value of the input range setting that is active at the time of
recording.
Consequently, the actual trigger level (input signal waveform value) will
change when the input range setting is changed.
The trigger level is indicated on the bar graph for the trigger channel (see
page 26).
Ch Trigger channel setting
When the trigger signal type is “Level”, a channel (1 to 4) must be spec-
ifi ed for monitoring. This is called the trigger channel.