1-10
IM 701830-01E
Trigger Mode
≡
Page 6-1.
≡
Conditions for updating displayed waveforms are set. The following two types of trigger mode
are available.
Auto-mode
Displayed waveforms are updated each time a trigger is activated within a specified time
(approximately 50 ms, referred to as the time-out period) and are updated automatically after
each time-out period.
Auto level mode
If a trigger is activated before the timeout period, it displays the waveform in the same way as
in the auto mode. If the trigger is not activated within the timeout period, then the center value
of the amplitude of the trigger source is detected, and the trigger level is changed to that value.
The trigger is activated using the new value and the displayed waveform is updated.
Half the amplitude
Half the amplitude
Trigger level Amplitude
Normal mode
Displayed waveforms are updated only when a trigger is activated. Displayed waveforms will
not be updated if no trigger is activated.
Trigger Hysteresis (For Voltage, Temperature, and Strain Modules)
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Page 6-3.
≡
Allow the trigger level to have a width, so that the trigger does not get activated due to small
fluctuations in the signal. Select the trigger hysteresis from the following three choices.
• For voltage modules
: Hysteresis of about
±
0.1 div centered on the trigger level.
: Hysteresis of about
±
0.5 div centered on the trigger level.
: Hysteresis of about
±
1 div centered on the trigger level.
• For temperature module
: Approx.
±
(0.5
×
the setting resolution of the trigger level)
: Approx.
±
(1
×
the setting resolution of the trigger level)
: Approx.
±
(2
×
the setting resolution of the trigger level)
• For strain modules
: Hysteresis of approx.
±
2.5% of the selected measurement range centered on the trigger
level.
: Hysteresis of approx.
±
12.5% of the selected measurement range centered on the trigger
level.
: Hysteresis of approx.
±
25% of the selected measurement range centered on the trigger
level.
Hysteresis width
Trigger level
A trigger is activated at this point if
"Rise" ( ) is selected.
Trigger Source and Trigger Level
≡
Page 6-2 and 6-4.
≡
Trigger source
: Selects the signal for the selected trigger type.
Trigger level
: Sets the voltage level used to judge trigger conditions such as trigger slope
(rise/fall of a signal).
1.3 Setting a Trigger
