Extech Instruments MS420 User Manual page 16

Figure 7
4. Press ◄ (yellow) or ► (yellow) to adjust time base horizontal position, press▲
(yellow) or ▼ (yellow) to adjust trigger position.
5. Use the OPTION key to toggle between the two modes described above.
When triggering in the Alternate trigger mode:
7. Press OPTION and the following will appear:
—Time
—Trig 2
Figure 8:
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