Hioki LR8432-20, Инструкция по эксплуатации

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5.3 Inserting Event Marks (Search Function)
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Event marks can be inserted by applying external input signals.
Refer to Input signal specifications in section “9.2 External Trigger Input” (p. 159).
Inserting Event Marks Using External Input Signals
Select the [System] screen.
Select [External Trig In].
Apply
Open the setting options
for the item to be set.
Select [Event].
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Connect the external signal input (p. 157).
Event marks are inserted when the external trigger signal (EXT.TRIG input
terminal 2) transitions on the falling edge from High level (3.0 V to 5.0 V) to
Low level (0 V to 0.8 V).