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FUNCTIONAL SPECIFICATION
■
Measuring Resistance
The unit of resistance is the Ω. The meter sends a low current into
the circuit so that the resistance can be measured. This current
runs along all paths between the two probes and enables the total
resistance to be calculated.
How to measure:
Connect the red
lead to
the black lead to
, as shown in
the figure to the left,
and measure the
resistance and
measure the
resistance directly.
■
Continuity Testing
Continuity means the presence of a complete path for current to
flow. The continuity test features a beep that sounds when a circuit
is complete. The beep allows users to quickly test continuity without
having to watch the display.
and
How to test: Resistance mode
changes to continuity mode,
when
is pressed. The
beeper is activated when the
resistance between the red and
black probes is less than 80Ω.
MODE
Change Mode
STORE
Fix and show the current
value.
36
FUNCTIONAL SPECIFICATION
■
Measuring AC & DC Voltage
Voltage is the difference in electrical potential between two points. The
polarity of an AC voltage varies with time, while DC polarity is constant. The
meter displays AC voltage as RMS values (root mean square readings). The
RMS value is the equivalent DC voltage measured in a time varying
sinusoidal signal.
How to measure : Press the
select AC or DC by pressing the
place the red lead on +ve side and the black lead on -ve side of the voltage
source.
voltage measuring button, and then
button. When DVC is being measured,
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