Radio Shack 2200087 - Measuring hFE

To
select
the
frequency
function,
press
Hz/DUTY/WIDTH
until
Hz,
kHz,
or
MHz
appears.
To
select the
duty
cycle
or
pulse
width
function,
press
Hz/DUTY/WIDTH
until
%
appears
(to
select
duty
cycle)
or
until
pS
or
mS
appears
(to
select
pulse
width).
If
%,
pS,
or
m5
appears
and
you
want
to
select
the
frequency
function
again,
press
Hz/DUTY/WIDTH
until
Hz,
kHz,
or
MHz
appears.
Connect
the
test
leads
to
the
device
you
want
to
check
=
Note:
Measuring
hg
You
can
use
the
meter to
measure
the
DC
gain
of
small-signal,
bipolar
transistors
in
the
FE
range
of
1000
ND
CAUTION:
To
avoid
damaging
the
meter,
do
not
try
to check
a
transistor
if
you
do
not
know
its
type
and
pinout.
1.
2.
Ifthe
function
dial
is
set
to
=2V/dBm
and
you
want
to
set
the
meter
for
maximum
sensitivity
when
measuring
a new signal,
press
SELECT
to
select the
AC
V
function
then
press
Hz/DUTY/WIDTH
to
select
the
frequency
function.
To
change
back
to
AC
V
measurement,
press
SELECT
once
then
press
SELECT
again
to
select
the
AC
V
display
mode
(dBm
or
volts).
Press
SELECT
twice to
set
the
meter
back
to
the
AC
V
measurement
function.
Ifthe
meter
is
set
to
measure
current,
it
cannot
measure
the
frequency
of
a
signal
with
DC
bias.
w
1
a
0
Oo
©
1)
=
i)
=
o
=
Set
the
function
dial
to
hgg.
Unplug
both
test
leads from
the
meter,
then
slide
down
the
Sliding
Guard
to
show
the
hgg
socket
Insert
the
transistor
you
want
to
check
into
the
hgg
socket,
matching
the
pinout
of
the
transistor
with
the
labels
on
heg
Socket
the
socket.
The
transistor's
value
appears.
17