MS400 EXTECH [Extech Instruments Corporation.], MS400 Datasheet - Page 35

• Manufacturer Part Number: MS400
• Description: Handheld Digital Storage Oscilloscope & Multimeter
• Manufacturer: EXTECH [Extech Instruments Corporation.]

Triggering Control
Edge Triggering
The Edge triggering menu:
There are two triggering modes: Edge and Video. Each trigger mode is set by menu
functions:
Edge triggering occurs when the trigger input passes through a given level in the
specified direction.
Video triggering: Perform video field trigger or line trigger on standard video signals.
The following describes the Edge and Video triggering menus respectively.
With Edge triggering selected, the trigger occurs on the rising or falling edge of the
input signal, if the triggering threshold is met.
Function
menu
Slope
Signal
source
Trigger
mode
Coupling
Settings
Rise
Fall
CH1
CH2
Auto
Normal
Single Shot
AC
DC
HF
suppression
LF
suppression
Description
Triggering on the rising edge of the signal.
Triggering on the falling edge of the signal.
CH1 is used as the trigger source.
CH2 is used as the trigger source.
Acquisition of waveforms is possible even if there is
no triggering condition detected.
Acquisition of waveforms can only be performed
when the triggering condition is satisfied.
The sampling is performed on a waveform when one
trigger is detected, then sampling ceases.
With this mode selected, the DC component is
prevented from passing-through.
All dc components are allowed to pass.
The HF part of the signal is prohibited and only the LF
component is allowed.
The LF part of the signal is prohibited and only the HF
component is allowed to pass
Figure 38: Edge Trigger
35
MS400 Version 2.0 – December 2007