Tektronix MDO3012, Руководство пользователя

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Get Acquainted with the Instrument
11. The horizontal position/scale readout shows on the top line the horizontal scale (adjust with the Horizontal Scale knob).
With Delay Mode on, the bottom line shows the time from the T symbol to the expansion point icon (adjust with the
Horizontal Position knob). Use horizontal position to insert added delay between when the trigger occurs and when you
actually capture the data. Insert a negative time to capture more pretrigger information. With Delay Mode off, the bottom
line shows the time location of the trigger within the acquisition, as a percentage.
12. The Timing Resolution readout shows the timing resolution of the digital channels. Timing resolution is the time between
samples. It is the reciprocal of the digital sample rate. When the MagniVu control is on, “MagniVu” appears in the readout.
13. Measurement readouts show the selected measurements. You can select up to four measurements to display at one
time. A
symbol appears instead of the expected numerical measurement if a vertical clipping condition exists. Part of
the waveform is above or below the display. To obtain a proper numerical measurement, turn the vertical scale and
position knobs to make all of the waveform appear in the display.
14. The auxiliary waveform readouts show the vertical and horizontal scale factors of the math and reference waveforms.
15. The channel readout shows the channel scale factor (per division), coupling, invert, and bandwidth status. Adjust with the
Vertical Scale knob and in the channel 1 , 2 , 3 , or 4 menus.
16. For digital channels, the baseline indicators point to the high and low levels. The indicator colors follow the color code
used on resistors. The D0 indicator is black, the D1 indicator is brown, the D2 indicator is red, and so on.
MDO3000 Series Oscilloscopes User Manual 47