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IM DL350-01EN
• Depending on the specified time interval, a trigger may occur while the waveform is being acquired or in
the pre-trigger section (the section before the trigger that is acquired for observation). When this happens,
the trigger is ignored.
• If the specified date and time fall within the pre-trigger section, a trigger occurs at the end of the pre-trigger
section.
• If the specified date and time are in the past, triggers occur at the points in the present defined by the
function (specified date and time) + (time interval × integer N).
• If you set the
, the specified number of waveforms are acquired. When the specified
number of acquisitions is infinite, waveform acquisition continues until you press START/STOP.
External Signal (External)
Select External to use the signal that is received through the left-panel TRGI input terminal as the trigger source.
Trigger Slope (Slope)
Slope
refers to the movement of the signal from a low level to a high level (rising edge) or from a high level to a
low level (falling edge). When a slope is used as one of the trigger conditions, it is called a
trigger slope
.
The following trigger slope settings are available for triggering the instrument.
The instrument triggers when the trigger source changes from a level
below the trigger level to a level above the trigger level (rising).
The instrument triggers when the trigger source changes from a level
above the trigger level to a level below the trigger level (falling).
The instrument triggers on both rising and falling edges.
* can be selected only when a simple trigger is used with an analog trigger source.
Trigger Level (Level)
Trigger level
refers to the signal level used as a reference for detecting a signal’s rising and falling edges or high
and low states. With simple triggers such as the edge trigger, the instrument triggers when the trigger source
level passes through the specified trigger level.
The range and resolutions that you can use to set the trigger level vary depending on the type of signal being
measured.
When Measuring Voltage
Selectable range: ±10 div (two times the display range)
Resolution: 0.01 div. (Example: when the probe attenuation is 1:1 and the voltage scale is 2 mV/div, the
resolution is 0.02 mV.)
When Measuring Temperature
Selectable range: The range of thermocouple being used. Resolution: 0.1°C or 0.1 K
When Measuring Strain
Selectable range: Selectable range: The range of the strain module being used. Resolution: 1 μSTR or 0.0005
mV/V
When Measuring Acceleration
Selectable range: ±10.00 div. Resolution: 0.01 unit
When Measuring Frequency (Revolutions, periods, duty ratios, power supply frequencies, pulse widths,
pulse integration, velocities)
See section 6.13 in the
Getting Started Guide
, IM DL350-03EN.
6 Triggering