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11
INSTRUMENTS
INSTRUMENTS
Continuity Test
Switch the main function to
the "
" range, verify
that the power line is
disconnected from the
system. Connect the Red
test lead to the "
+
" terminal
and the Black one to the
"COM" terminal. Connect
the tips of the test lead to
the points where the value of
the conduction condition
is needed. If the resistance
is under 100Ω, the beeper
will sound continuously.
Diode Test
Switch the main function to the
"
" range, verify that the
power line is disconnected from the
system. Connect the Red test lead to
"
+
" terminal and the Black one to the
"COM" terminal. Connect the tips of
the Red test lead to the anode side and
the Black test lead to the cathode side
of the diode being tested. Read the
forward Voltage (Vf) value on the
LCD panel.
If the polarity of test leads are reversed
with diode polarity, the digital
reading will show "OL". This can be
used for distinguishing between anode
and cathode terminals of a diode.
Beeper
Short circuit
continued ...
Open circuit
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