LAUNCH X431 PAD Scopebox User’s Manual
<3> Trigger source
Trigger source means which channel signal will be measured as trigger object.
Before making settings to trigger mode and v
oltage of certain channel, you
have to choose the target channel.
3.3.3 Auto calibration
This option enables you to obtain a precise measurement of measured signal.
Auto calibration mainly includes: calibration of analog channel, trigger voltage
calibration of trigger circuit and nonlinear calibration of horizontal baseline
movement.
Click “View” and then click [Calibration], a dialog box simil
ar to Fig. 3-8 will
appear.
Fig. 3-8
Check the box before the channel to select it. T
o select all, click [Check All]. To
deselect it, just click [Reverse]. After choosing the desired channel(s), click
[Start] to start calibration and [Calibration] button will be temporarily invalid
during calibrating. Click [Stop] to stop calibrating. Once it becomes active, it
indicates calibration has completed.
Notes: In process of calibration, make sure CH1/CH2/CH3/CH4 has no signal
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