Pulse Trigger; Video Trigger - Tenma 72-14520 Instructions Manual

Pulse Trigger

• Pulse trigger means determining the triggering time based on the pulse width. You
can acquire abnormal pulse by setting the pulse width condition.
• Press the TRIG MENU button then press F1 to select trigger type and then set the
pulse width using the multi-purpose control.
Functions Menu
Type
Trigger source
Pulse width
condition
Pulse width setting
Trigger polarity
Trigger mode
• PULSE WIDTH: The time difference between the trigger level and the positive
pulse is defined as the positive pulse width, and the time difference between the
trigger level and the negative pulse is defined as the negative pulse width, shown in
the following diagram.

Video Trigger

• The waveform of the video signal includes the image signal and the time sequence
signal, and each kind of signal uses different standards and formats.
• Basic measurement functions, which can be triggered in NTSC, SECAM, PAL, and
other standard video formats.
• Press the TRIG MENU, Press F1 to select the trigger type, then set to video trigger
using the multi-purpose control.
Setup
Pulse
CH1 to CH4 Set Ch1 to CH4 as the signal source trigger signal
EXT, EXT/5 Set the external trigger input channel as the signal
source trigger signal
AC Line Set AC line as trigger
Larger Trigger when pulse width is larger than default value
Smaller Trigger when pulse width is smaller than default value
Equal Trigger when pulse width equals to default value
The pulse width time can be set from 4.0ns~10.0s using
4.0ns~10.0s
the multi-purpose control
Pos pulse width Set positive pulse as the trigger signal
Neg pulse width Set negative pulse width as the trigger signal
Auto The system automatically samples waveform data
when there is no trigger signal input. The scan baseline
is shown on the display. When the trigger signal is
generates it automatically turns to trigger scan.
Normal The system stops acquiring data when there is no
trigger signal. When the trigger signal is generated
trigger scan occurs.
Single One trigger will occur when there is an input trigger
signal. Then trigger will stop.
Notes
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