www.tmatlantic.com
- 13 -
Chapter 3. Making Measurements
Introduction
Chapter 3 explains how to make measurements.
Most measurement functions can be selected by using the rotary switch.
White letters or symbols identify primary functions; blue letters or symbols identify alternative functions. Press the blue
button to access these alternate functions. Frequency-related functions can be selected when the rotary switch is in any of the
、
or
、
、
position.
Measuring Voltage
Voltage is the difference in electrical potential between two points. The polarity of ac (alternating current) voltage varies
over time, while the polarity of direct current voltage is constant over time.
Ranges available in volts functions are:
400.0mV
，
4.000V
，
40.00V
，
400.0V
，
750V
4.000V
，
40.00V
，
400.0V
，
1000V
40.00mV
，
400.0mV
Measuring AC Voltage (See
Figure 3-1)
1.
Set the rotary switch to
position, and “AC” “V” will be on display.
2.
Insert the black lead into”
COM
“terminal, and the red lead to into the “
Ω
V
” terminal.
3.
Connect the leads to the testing power.
4.
Read the measuring results from the screen.
5.
Press
to display the frequency and duty cycle ratio of the tested signals.
Figure 3-1.AC Voltage Measurement
