October 2014
Page
53
Alternate trigger (Trigger Type: Slope) menu list:
Menu
Settings
Instruction
Source
CH1
CH2
Select CH1 as the trigger source.
Select CH2 as the trigger source.
Mode
Slope
Slope
Condition
Rising Edge and more than.
Rising Edge and less than.
Rising Edge and equal to .
Falling Edge and more than
Negative pulse and less than
Negative pulse and equal to
settings
24ns~10s
Turn "TRIG LEVEL" knob to set slope time
High level
Turn "TRIG LEVEL" knob to set the High level
Low level
Turn "TRIG LEVEL" knob to set Low level
Slew rate
Slew rate=( High level- Low level)/ Settings
Coupling
AC
DC
HF
LF
Block the direct current component.
Unblock all components.
Block the high-frequency signal and only unblock
the low-frequency component.
Block the low-frequency signal and only unblock the
high -frequency component.
Holdoff
100ns~10s
Set interval by using TRIG LEVEL control, value
range from 100ns~10s.
Holdoff
Reset
Reset hold time to default value (100ns).
TERM INTERPRETATION
►
Source
: Trigger can occur from several sources: Input channels (CH1, CH2),
AC Line, Ext, Ext/5.
Input
: It is the most commonly used trigger source. The channel will
work when selected as a trigger source whatever displayed or not.
Ext Trig
: The instrument can trigger from a third source while acquiring
data from CH1 and CH2. For example, you might want to trigger from an
external clock or with a signal from another part of the test circuit. The
Ext, Ext/ 5 trigger sources use the external trigger signal connected to
the EXT TRIG connector. Ext uses the signal directly; it has a trigger
level range of +1.6 V to -1.6 V. The EXT/ 5 trigger source attenuates the
signal by 5X, which extends the trigger level range to +8 V to -8 V. This
allows the oscilloscope to trigger on a larger signal.
