Hioki MR8740-50, Instruction Manual

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105
Setting the Trigger Satisfaction Conditions (AND/OR Operation) Among Trigger Sources
5.5 Setting the Trigger Satisfaction Conditions
(AND/OR Operation) Among Trigger Sources
Set the trigger logical-conditions among the analog, logic, external, and interval triggers by
choosing between logical AND or OR operation.
The forcible trigger triggers the instrument regardless of the trigger logical-conditions setting. If all
trigger sources are set to off (i.e., with no trigger setting), recording starts immediately (free run).
> [Trigger] > [Common]
Click [AND] or [OR] , whichever is displayed, to switch to the other.
OR
 When any one of the specified trigger conditions changes from not being satisfied to
being satisfied (at a changing point), the instrument is triggered. Thus, even though
a trigger condition has been already satisfied at the start of waiting for a trigger, the
instrument is not triggered until a changing point is detected.
AND Only when all of the specified trigger conditions are satisfied, the instrument is
triggered. Thus, if all the specified trigger conditions have been already satisfied at the
start of waiting for a trigger, the instrument is immediately triggered.
Setting example: To trigger the instrument when a waveform crosses the zero-volt level in
the positive direction ( [ ] *)
The instrument is triggered based on whether the trigger satisfaction condition is set to AND or OR
operation in the following ways:
Channel Trigger Level at time Slope Filter
CH1, CH2 Level 0.00 V * Off
[AND] [OR]
One waveform is above 0 V,
and the other is also above 0 V.
Either waveform crosses 0 V
upwards.
Start Start
*: With the [AND] setting, the slope setting item appears as [HIGH] .
5
Configuring the
Trigger Settings