Radio Shack 22-174A - Frequency Measurement Notes; Gate Signal and Range Selection for Frequency; Measuring Capacitance; Capacitance Measurement Procedure and Safety

Notes:
MEASURING
CAPACITANCE
o
The meter
uses
a 1 Hz
gate
signal
to measure
the fre.
Before
you
measure capacitance, fully discharge
the capaci-
quency
of
signals
below 4000
Hz. You
might
have
to wa1
a
tors. Follow
these
steps to measure capacitance.
few
seconds for
the
display
to
stabilize.
o
For
signals
above 4000
Hz,
you
might
have
to manually
set
the frequency
range
to
prevent
the meter
from
displaying
a
harmonic
of
the
actual frequency.
See',Manually
Sel-ecting
the Range."
o
Because
measuring
frequencies
takes
several
seconds,
the
keypad
might
be slow
to
respond
to key
presses.
o
Measuring
frequencies
above
100 kHz
might
cause
BATT
to appear
on the
display.
lf
this happens,
switch the meter
to
another mode.
lf
BATI
still
appears,
the batteries
might
need
to
be replaced.
1.
Set the function control to
-l
F.
nF
appears
on the
display.
2. Plug
the
red test
lead into
the +
jack,
and
plug
the
black test
lead
into
the
-COM
jack.
Black
Red
c
3.
Attach the
red
test
probe
to the capacitor's
*
side,
and attach the
black test
probe
to the capacitor's
negative side.
Or,
plug
the capacitor
into
thE DIODE/OHMS/CAP
socket.
(Observe
the
polarity
for electrolytic
caoacitors.)
4. Read
the
measured
value on
the display.
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