Performance Tests
TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications 1–47
HPress VERTICAL MENU; then press the main-menu button
Coupling. Press the side-menu button to toggle it to the 50
setting. (This step is not required on the TDS 794D.)
HPress SET LEVEL TO 50%.
HUse the vertical POSITION knob to center the test signal on screen.
HPress TRIGGER MENU; then press the main-menu button Mode
& Holdoff. Press the side-menu button Normal.
2. Confirm Main and Delayed time bases are within limits for accuracies:
a. Display the test signal:
HPress HORIZONTAL MENU.
HSet horizontal modes. To do this, press the main-menu button Time
Base. Press the side-menu buttons Delayed Only and Delayed Runs
After Main. See Figure 1–13.
b. Measure the test signal:
HSet the horizontal SCALE of the D (delayed) time base to 500 ns for
the TDS 600B or to 100 ns for the TDS 500D/700D.
HIf using a time-mark generator, align the trigger T to the center
vertical graticule line by adjusting the horizontal POSITION. See
Figure 1–13 on page 1–48.
HIf using a sine wave generator, align the rising edge of the sine wave
on the center graticule crosshairs by adjusting the horizontal
POSITION.
HSet delayed time to 10.000016 ms. Do this on the keypad by
pressing 10.000016, then SHIFT, then m followed by ENTER).
c. Check long-term sample rate and delay time accuracies against limits:
H CHECK that the rising edge of the marker (or sine wave) crosses
the center horizontal graticule line at a point within either ±2.0
divisions, for the TDS 600B, or ±2.5 divisions, for the
TDS 500D/700D, of center graticule. See Figure 1–13.
HEnter number of divisions on the test record.