Extech Instruments MS420 User Manual page 13

2. Auto measurement screen No. 1 ("f" for frequency, "T" for cycle, "V" for
average value, "Vp" is the peak-peak value and "Vk" is the root-mean-
square value
3. Auto measurement screen No. 2
4. Horizontal triggering position
5. The difference in time between the horizontal triggering position and the
screen's centerline (zero when the pointer is in the center of the screen)
6. The trigger modes:
Auto: The oscilloscope is in the automatic mode and displaying the waveform
in the non-trigger mode
Trig'd: The oscilloscope has detected a trigger and is displaying the
information generated after the trigger
Ready: All pre-triggered data has been captured and the oscilloscope is ready
to receive trigger signals
Scan: The oscilloscope records and displays waveform data continuously
Stop: The oscilloscope has stopped collecting waveform data
7. Red and blue trigger pointer shows vertical position of alternate triggers.
The trigger pointer turns green when it reaches an edge trigger or a video
trigger
Hide or View the menu using the MENU key;
8.
9. Menu setting options (vary with each function)
10. Trigger Voltage Level
11. Trigger signal source
12. Primary Time Base
13. The coupling mode for CH2; "~" AC, "-" DC, and ground
14. The vertical Voltage units scale for CH2
15. The coupling mode for CH1; "~" AC, "-" DC, and ground
16. Vertical Unit Scale for CH1
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