Hioki LR8431, Instruction Manual

Page: 76 / 204

4.1 Setting Criteria to Start and Stop Recording
68
There are two ways to set the criteria to start and stop recording according to
waveform slope.
Select whether to trigger at the rising or falling edge of the input signal.
4.1 Setting Criteria to Start and Stop Record-
ing
Type of Analog Trigger Trigger Example Description
Level Trigger

(p. 69)
[
Level
]
Recording starts (or stops) when
the input signal crosses the
specified trigger level (voltage).
Window Trigger

(p. 70)
[In]
Recording starts (or stops) when
the input signal enters a range
defined by upper and lower
thresholds.
[Out]
Recording starts (or stops)
when the input signal exits a
range defined by upper and low-
er thresholds.
[  ]
[

]
T T
Trigger Level
Input
Trigger Slope
T
T
Upper
Threshold
Lower
Threshold
T
T Upper
Threshold
Lower
Threshold
Enable the Trigger Function
Select the trigger to use, and press the
ENTER key. Press it again when the
confirmation message appears, and
you are ready to set trigger criteria (at
the same time, the [Trigger] setting on
the [Trig & Alm] screen turns on).
Set trigger criteria
Select the trigger criteria to be applied.
The [Timming] setting on the [Trig & Alm] screen

determines the effect of triggering, as follows:
• Start recording upon trigger: [Start]
• Stop recording upon trigger: [Stop]
• Alternately start and stop upon trigger: [Start&Stop]
Recording
T
Start Stop Start/Stop
T T T