Radio Shack 310 Uživatelský manuál stáhnout pdf (Strana 27)

12. Calculate the DC signal using the oscilloscope’s

grid display as follows:

a.Place the mouse cursor directly over the oscillo-

scope screen’s upper horizontal cursor until the

cursor’s shape changes to a cross.

b.While you press and hold the left mouse button,

move the mouse up or down until the screen’s

upper horizontal cursor is superimposed directly

on the DC signal’s flat-line waveform.

13. Click on the voltmeter icon. The

DVM

: box at the bottom of the com-

puter’s display shows the actual

DC signal level.

Zero Reference Line

MAX

10V

100V

DC flat-line waveform

7.5

V DC

DVM

22-310.fm Page 27 Friday, August 6, 1999 12:26 PM

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Radio Shack 310 Uživatelský manuál Strana 27