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Simpson 260 Series - DC Current Measurement: 0-500 mA Ranges

Simpson 260 Series
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d.
e.
Operation
Open
the
ground
side
of
the
circuit
in
which
the
current
is
being
measured.
Connect
the
VOM
in
series
with
the
circuit.
Connect
the
red
test
lead
to
the
positive
side
and
the
black
test
lead
to
the
negative
side.
Read
the
current
on
the
black
DC
scale.
Use
the
0-50
figures
to
read
directly
in
microamperes.
NOTE:
For
polarity
reversing
see
paragraph
4.3.
4.16
DIRECT
CURRENT
MEASUREMENT
0-1mA
[;
THROUGH
0-500mA
RANGE
.
Set
the
function
switch
at
+
DC
(Figure
4-7).
.
Plug
the
black
test
lead
into
the
—
COMMON
jack
and
the
red
test
lead
into
the
+
jack.
Set
the
range
switch
at
one
of
the
four
range
positions
marked
1
mA,
10
mA,
100
mA
or
500
mA.
.
Open
the
grounded
side
of
the
circuit
in
which
the
current
is
being
measured.
Connect
the
VOM
in
series
with
the
circuit.
Connect
the
red
test
lead
to
the
positive
side
and
the
black
test
lead
to
the
negative
side.
.
Turn
the
power
on.
Read
the
current
in
milliamperes
on
the
black
DC
scale.
For
the
Іта
range,
use
the
0-10
figures
and
divide
by
10.
For
the
10mA
range,
use
the
0-10
figures
di-
rectly.
For
the
100mA
range,
use
the
0-10
figures
and
multi-
ply,
by
10.
For
the
500mA
range,
use
the
0-50
figures
and
multiply
by
10.
Turn
the
power
off
and
disconnect
the
test
leads.
4-20

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