Section 5-Basic Applications; Introduction; Voltage Measurement Cursors; Voltage Difference - Tektronix 2245A Operator's Manual

The TEKTRONIX 2245A Oscilloscope has a cursor measurement system
for making accurate,
measurements. The measurements given in this section are examples of
typical applications using this measurement system. After becoming
familiar with the controls, indicators, and capabilities of the instrument, you
can develop convenient methods for making special measurements for your
own applications. A brief description of how the graticule markings are used
in making measurements is given in Section 3 of this manual.
When a procedure calls for " Initial Setup" or " Auto Setup Function," refer
to the " OPERATOR CHECKS AND ADJUSTMENTS" Section 4. Certain
signals such as video or aperiodic (non-repeating) signals and signals con­
taining many unrelated
adjustment of the triggering controls to obtain the best display.

Voltage Measurement Cursors

The CURSOR VOLTS function can accurately measure signals displayed on
C H I or CH 2. Voltage measurements using the cursors may also be done
on CH 3, CH 4, and ADD waveforms by setting the VOLTS/DIV switch set­
ting of the selected measurement channel to the same scale factor as the
signal to be measured. However, measurements on CH 3 or CH 4 input
signals will be less accurate than on the CH 1 or CH 2 input signals. Volts
cursors are available for making measurements in the both the A and X-Y
horizontal modes.
V oltage D ifferen ce
Use the following procedure steps as a guideline in making voltage-
difference measurements using the positionable voltage cursors.
1. Apply the signal to the CH 1 input connector.
2. Set:
Vertical MODE
Horizontal MODE
3. Press AUTO SETUP button.
2245A Operators

Introduction

direct-readout voltage,
frequency components
CH 1
A
Basic Applications
time, and frequency
may require more
5-1