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UTD2000 Series User Manual
28
Mode
AUTO
Set to automatic trigger. The DSO will continuously perform data acquisition
without triggering signal.
Normal
Set to normal trigger. The DSO will only perform data acquisition when there is
triggering signal.
Single
Set to single trigger. The DSO will only perform 1 cycle of the data acquisition
when there is triggering signal.
Coupling
AC Block the DC component of triggering signal.
DC Pass through DC and AC components of triggering signal
HF Reject high-frequency component of the triggering signal (over 80kHz signals).
LF
Reject low-frequency component of the triggering signal (below 80kHz
signals).
Noise Reject high-frequency noise, reduce the probability of mis-triggering.
4.2 Pulse width trigger
For pulse width trigger, the trigger time shall be subject to pulse width of the triggering
signal. You can capture abnormal pulse by setting pulse width conditions.
Table 4-2 Pulse width trigger menu
Function Menu Setting Description
Type Pluse
Source
CH1 Set CH1 as the triggering signal source
CH2 Set CH2 as the triggering signal source
EXT Set external trigger input channel as the triggering signal source
AC Line Set AC power line as trigger source
Trigger coupling
AC Block the DC component of triggering signal.
DC Pass through DC and AC components of triggering signal
HF
Reject high-frequency component of the triggering signal (over 80kHz
signals).
LF
Reject low-frequency component of the triggering signal (below 80kHz
signals).
Noise Reject high-frequency noise, reduce the probability of mis-triggering.
Trigger mode
AUTO
When there is no signal input, the system will automatically collect waveform
data and the scan base line will be displayed on the screen. When there is
signal input, the system will automatically switch to trigger scan.
Normal
Stop collecting data when there is no trigger signal, the system will conduct
trigger scan when the trigger signal generates.
Single The DSO will only perform 1 cycle of triggering when there is triggering signal.
Pulse width
setting
Enter pulse setting menu
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