Tektronix TDS500C Manuel d'utilisateur télécharger pdf (Page 60)

Performance Tests

1–44

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

H Use the vertical POSITION knob to center the test signal on screen.

H Set the horizontal SCALE of the Main time base to 1 ms.

H Press 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:

H Align the trigger T to the center vertical graticule line by adjusting

the horizontal POSITION. See Figure 1–13 on page 1–45.

H Press HORIZONTAL MENU.

H Set 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:

H Set the horizontal SCALE of the D (delayed) time base to 500 ns for

the TDS 600B or to 100 ns for the TDS 500C/700C.

H Set delayed time to 10 ms. Do this on the keypad by pressing 10,

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 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 500C/700C, of center

graticule. See Figure 1–13.

H Enter number of divisions on test record.

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 147 148

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Tektronix TDS500C Manuel d'utilisateur Page 60