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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 voltage 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 similar to Fig. 3-8 will
appear.
Fig.
3-8
Check the box before the channel to select it. To 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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