Sears 82413 - DC Current and AC Voltage Measurements; Resistance Measurements; Diode Tests and Continuity Checks

4.
5.
Connect test
leads
to device or circuit
bcing measured.
Turn
on
power
to
device or
circuit bcing measured.
Voltage value wili appear on Digital
Display
aiong with
the voltage
polarity.
DC
Current
Measurement
1.. Red lead
to
"mA"
jack
for measurcrncr)ts rrp to 2
Amps,
Black
lead
to
"COM"
jack.
For measuremenb between 2 Amps
and
l0
Amps, connect
red
lead
to
"l0A"
jack.
POWER/FUNCTION switch to
"I)C
()",
rnd
RANGE
switch
to desired
"A''
position.
Open the circuit to be measured, and
conncct test
leads
IN SERIES with the ioad in which currcnt
is to
be
measured.
Read current value on
Digital Display.
AC Voltage
Measurements
L.
Red lead
to
"V-s}",
Black lead
to
"COM".
2. POWER/FUNCTION switch to
"AC",
and
RANGE switch
to desired
"V"
position.
3.
Read voltage vaiue on
Digital Display.
Resistance Measurements
1.
Red
lead
to
"V.
f,}", Black lead to
"COM".
2.
POWER/FUNCTION
switch to "DC
s2",
and RANGE
switch to desired
"OHM"
position.
If
the resistance
being
measured.is
connected
to
a circuit,
turn
off power
and
discharge
all
capacitors
before
applying
test
prods,
Connect
test leads
to
circuit
being
measured.
Read
resisrance
value
on Digital
Display.
4.
q
Continuity
Checks
1.
Red
lead
ro
,,V.
o,',
Black
lead
to
,,COM,,.
2. POWER/FUNCTION
switch
to
,,DC
A"
,
and
RANGE
switch
to Btzzer
(
,r|)
)
position.
3.
Connect
test leads
to
the
circuit
under
test.
4.
Built-in
buzzer
sounds
if
the
circuit
under
test
is con_
tinuous.
3.
)
J.
Diode
Tests
L.
Red
lead
to
,,V.f,)',,
Black
iead
to
,,COM".
2.
POWER/FUNCTION
switch
to
,.DC
0,',,
and
RANGE
switch
to the
2K,e (
+<-
)
position.
3, Ifthe
semiconductorjunction
being
measured
is
connected
,
to
a
circuit,
turn
off power
and
discharge
all
capacitors.
4.
Connect
test
leads
to
device.
5. In
case
of
connection
of forward (Red
to
anode,
Black
to,
cathode)
a
good
diode shows
a value.
If
the
diode
under
_test
is defective,
"000,' (shorted),
o,
,,1,,
(opend)
is
displayed.
When
the
test leads
are
connected
reverse
(Red
to
cathode,
Black
to
anode),
a good
diode
shows
,,1i'.
Ifit
is
defective,
"000"
or
other
figures
are
to be
displaved.
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