Tektronix 2205, Operator'S Manual

Page: 41 / 91

Applications
This section describes how to make specific types of measure­
ments with your 2205 Oscilloscope. Before performing any pro­
cedure, be sure you are familiar with the information contained
in the
Operator's Safety Summary
and in Section 1. Preset the
instrument front-panel controls, using the setup in Learning the
Controls in Section 2, as a guideline, and then turn on the
power.. For maximum measurement accuracy, allow a
20-minute w arm -up period.
AMPLITUDE MEASUREMENTS
P eak-to -P eak Voltage
This procedure may be used to make p eak-to-peak voltage
measurements between any two points on the waveform.
1. Apply the signal to either the CHI or the CH2 input connec­
tor and set the VERTICAL MODE selector to display the chan­
nel used.
2. Set the appropriate VOLTS/DIV control to display about 5
divisions of the waveform and ensure that the VOLTS/DIV
variable control is in the CAL detent.
3. Adjust the TRIGGER LEVEL control to obtain a stable display.
4. Rotate the SEC/DIV control to a setting that displays at least
one cycle of the waveform.
5. Vertically position the display so that the negative peak of
the waveform coincides with one of the horizontal graticule
lines (see Figure 3 -1 , Point A ).
6. Horizontally position the display so that one of the positive
peaks coincides with the center vertical graticule line (Figure
3 -1 , Point B ).
7. Measure the divisions of vertical deflection from p e a k -to -
peak (Figure 3 -1 , Point A to Point B).
2205 Operator’ s 3-1