Hioki 8847, Instruction Manual

Page: 165 / 372

9.3 Triggering by Analog Signals
155
9
Chapt
er
9
T
rigger
Set
tings
1. Level Trigger ________________________________________________
A trigger is applied when an input signal crosses the specified trigger level
(threshold voltage).
2. In-Window Trigger, Out-of-Window Trigger _______________________
Upper and lower limit values are set for the trigger level, and triggering occurs
when the input signal enters this range (In) or leaves this range (Out).
Trigger Level
Input Waveform
Trigger Slope: [
↓
]
T T
[
↑
]
In this manual, indicates a "trigger point", as the time at which a trigger is
applied.
T
Type Parameters
[Level]
[L] (Level)
Sets the level (voltage value) for the trigger. (The setting
can be made in 1/50 increments.)
[S] (Slope)
Determines whether triggering occurs when the signal
crosses the threshold (trigger level) on the upslope (rising
edge) or on the downslope (falling edge). With the [ ] set-
ting, triggering occurs in either direction.) (
↑, ↓,
)
[Event]
The number of signal rising edge (or falling edge) events is
counted, and triggering occurs when the Event number set
here is exceeded. (1 to 4000)
[F] (Filter)
Triggering occurs when the trigger criteria are met within
the specified filter width. This is useful to prevent spurious
triggering due to noise. (
: Off, 0.1 - 10 div,
: Off, On*) *: Filter width is 10 ms.
Upper Threshold
Lower Threshold
T T
Upper Threshold
Lower Threshold
T T
(In)
(Out)
Type Parameters
[In]
or
[Out]
[Lower]
Set the lower limit value.
(The setting can be made in 1/50 increments.)
[Upper]
Set the upper limit value.
(The setting can be made in 1/50 increments.)
[F] (Filter)
Triggering occurs when the trigger criteria are met within
the specified filter width. This is useful to prevent spurious
triggering due to noise. (
: Off, 0.1 - 10 div,
: Off, On*) *: Filter width is 10 ms.