Hioki LR8431, Instruction Manual, Page: 77 / 204

4.1 Setting Criteria to Start and Stop Recording
69
3
4
Chapt
er
4 S
p
ecify
ing Crit
eria for Meas
urement
s
(T
riggering, Ala
rm and T
imer)
Enter the signal level threshold at which to start or
stop recording, and whether triggering occurs on the
upslope or downslope of the input signal.
Recording starts or stops when the signal crosses the
specified threshold. The level value is an instanta-
neous (not rms) value.
Levels can be confirmed on the level monitor or on the
Waveform screen.
Select the [CH] Screen.
Move to a setting item.
Apply
Open the setting options
for the item to be set.
Select from the listed
options.
1
2
Setting the Input Signal Trigger Threshold (Level Trigger)
T
T
Level Setting Ranges and Resolution
Channels Input type Range Resolution Channels Input type Range Resolution
CH1 -
CH10
Voltage
100mV 25

V
P1 - P4
Count

1 c
1V 250

V Revolve

1 r/s
10V 2.5 mV
20V 5 mV
100V 25 mV
1-5V 2.5 mV
Tc

0.5

C
1
Select [Level] as the [Cond] setting option
for the start or stop trigger.
2
Select the input signal rising (

) or falling (

)
edge setting option.
Setting options: (

default setting)
3
Set the [Level] setting to the input signal level
at which to start or stop recording.
 
Recording starts (or stops) when the signal cross-
es the threshold on the upslope (rising edge

).

Recording starts (or stops) when the signal cross-
es the threshold on the downslope (falling edge

).
1
2
3
When scaling is enabled,
the scaled value is also dis-
played.
Default setting: 0