APPLICATIONS AND MEASUREMENTS
Once the operator becomes familiar with the instrument and makes the initial operator's adjustments, this section will aid in
making measurements. Basically. this instrument is used the same as if it were an individual multimeter or general purpose
oscilloscope with the added convenience of being able to change modes with the push of a switch.
The procedures for making the basic voltage, current, and resistance measurements with the digital multimeter are the same
as those in the Operators Adjustments and Basic Displays section and will not be duplicated here.
PRELIMINARY INFORMATION
Common Connections
Reliable signal measurements cannot be made unless the in
strument and unit under test are connected together by a
common reference. The common clip on the probe provides
the best common connection when using the probe, while
the COMMON jack is used with a mA-D input jack. Also,
the COMMON jack may be used as an alternate common
connection for the probe.
I
WARNING
I
The probe common clip and the COMMON jack
are electrically connected to each other. Poten
tials applied to one are present on the other which
creates a possible shock hazard.
�
The probe common clip and COMMON jack are
electrically connected to each other. Dissimilar
voltages applied simultaneously to the common
clip and COMMON jack can cause equipment
damage.
Measurement Precautions
When making measurements with the probe or mA-D lead,
the unused lead and its corresponding common connection
should be disconnected to prevent a signal on that lead
from interferring with the signal being measured.
When making resistance measurements, check that the RMS
pushbutton is in the out position or the reading will be in
error. Also, if the circuit being measured is voltage sensitive,
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213 Operators
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Summary of Contents for 200 Series
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Page 8: ...213 DMM Oscilloscope 213 Operators ...
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