Uni-Trend UT4000 Series, User Manual

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UNI-T
®
UT4000 User Manual
Table 2-7 (Con’t)
Function Menu Setup Explanatory Note
D0-D15 Set one of the channels between D0-D15 as the
signal source trigger signal (the LA function must be
enabled).
Trigger coupling DC
AC
L/F Suppression
H/F Suppression
Allow AC and DC quantities of the input signal to
pass.
Intercept DC quantities of the input signal.
Reject low frequency quantities below 80kHz of the
signal.
Reject high frequency quantities above 80kHz of the
signal.
Trigger mode Auto
Normal
Single
Set to sample waveform only if no trigger condition
is detected.
Set to sampling waveform only when trigger
condition is met.
Set to sample waveform once when detecting one
trigger and then stop.
Edge type Fall
Rise
Rise, Fall
Set to trigger at the signal’s falling edge.
Set to trigger at the signal’s rising edge.
Set to trigger at the signal’s rising and falling edges.
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.
Table 2-8
Function Menu Setup Explanatory Note
Type Pulse
Trigger source CH1
CH2
EXT
EXT/5
AC
CH1 & CH2
D0-D15
Set CH1 as the signal source trigger signal.
Set CH2 as the signal source trigger signal.
Set the external trigger input channel as the signal source
trigger signal.
Divide the external trigger source by 5 to extend the
trigger level range.
Set grid trigger.
CH1 and CH2 trigger their respective signals alternately.
Set one of the channels between D0-D15 as the signal
source trigger signal (the LA function must be enabled).
Trigger coupling DC
AC
L/F Suppression
H/F Suppression
Allow AC and DC quantities of the input signal to pass.
Intercept DC quantities of the input signal.
Reject low frequency quantities below 80kHz of the
signal.
Reject high frequency quantities above 80kHz of the
signal.