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LAUNCH
X431 GDS Scopebox Manual
Fig.3-7
In Fig. 3-7, the yellow inverted triangle is the horizontal hold-off
pointer. Button [Hold-off 50%] can coarsely tune the horizontal
trigger, and make fine adjustment in the horizontal trigger hold-off
zone.
<6> Auto calibration
Click [Auto calibrated] button, the oscilloscope will perform automatic
calibration. [Auto calibrated] button will be temporarily invalid during
calibrating. Once it becomes active, it indicates calibration has
completed. See Fig. 3-8.