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Performance Tests
TDS 520A, 524A, 540A, & 544A Performance Verification
c.
Check long-term sample rate and delay time accuracies against
limits:
CHECK that the rising edge of the marker crosses the center
horizontal graticule line at a point within
center
graticule. See Figure 1-13.
d.
Check delta-time accuracy against limits:
Press the side-menu button Main Only. Set horizontal SCALE to
2 ns.
Set the output of the generator for 20 ns markers.
Press SET LEVEL TO 50%.
Press SHIFT; then ACQUIRE MENU. Next, press the main-menu
button Mode. Finally, press the side-menu button Average.
Enter 8, for eight averages, on the keypad.
Press MEASURE.
Press the main-menu button High-Low Setup; then press the
side-menu button Min-Max.
Press the main-menu button Select Measrmnt for
Ch1
.
Press the side-menu button –more–, until PERIOD appears in
the side menu. Press PERIOD.
Press CLEAR MENU.
CHECK that the readout for CH 1 Per is within 19.760 ns to
20.240 ns.
3.
Disconnect the hookup:
Disconnect the cable from the generator output
at the input connector of CH 1.