Making Measurements; Measuring Voltages - ADInstruments AD71B Manual De Usuario

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Introduction
Chapter 3 explains how to make measurements. Most measurement functions can be
selected by using the rotary switch.
While letters or symbols identify primary functions; blue letters or symbols identify
alternative functions. Press the

Measuring Voltages

A.
Red Black
Figure 3-1. Voltages Measurement
Warning
To avoid harms to you or damages to the Meter from
do not attempt to measure voltages higher than 1000V, although readings
may be obtained.
To measure voltages, set up the Meter as Figure 3-1 and do the following:
Insert the red test lead into the V terminal and the black test lead into the COM
1.
terminal.
2. UT71A: Set the rotary switch to
UT71B: Set the rotary switch to
Connect the test leads across with the object being measured.
3.
4. The measured value shows on the display.
AC measurement displays the True RMS value.
DC measurement displays the effective value of sine wave (mean value response).
When a ACV function is selected, you can press the Yellow Button to view the AC +
DC True RMS value in the primary display. To exit, please EXIT button.
The BLUE button cycles among
Note
z When measuring voltage, the Meter acts around a 10M ( and ) or 2.5G (
impedance in parallel with the circuit. This loading effect can cause measurement
errors in high impedance circuits. In most cases, the error is negligible (0.1% or
©Copyright Abacanto Digital SA.
Making Measurement
BLUE
button to access these alternate functions.
or or
or or
, frequency and duty cycle.
Manual de usuario AD71B
AD Instruments
Chapter 3
electric shock, please
)
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