Extech
Instruments
23 GX900-EU-EN V1.6 4/14
CAPACITANCE
MEASUREMENTS
WARNING:
To
avoid
electric
shock,
disconnect
power
to
the
unit
under
test
and
discharge
all
capacitors
before
taking
any
capacitance
measurements.
Remove
the
batteries
and
unplug
the
line
cords.
1.
Set
the
rotary
function
switch
to
the
CAP
position.
2.
Press
the
F1
key
(MENU),
move
the
menu
selector
to
the
menu
item
labeled
CAPACITANCE,
and
then
press
the
OK
key.
3.
Select
CAPACITANCE
and
then
press
the
OK
key.
4.
Insert
the
black
test
lead
banana
plug
into
the
negative
COM
jack.
5.
Insert
the
red
test
lead
banana
plug
into
the
positive
V
jack.
6.
Touch
the
test
leads
to
the
capacitor
to
be
tested.
7.
Read
the
capacitance
value
in
the
display
FREQUENCY,
DUTY
CYCLE,
PULSE
WIDTH,
and
PERIOD
MEASUREMENTS
(ELECTRONIC)
1.
Set
the
rotary
function
switch
to
the
Hz/%
position.
2.
Press
the
F1
key
(MENU),
move
the
menu
selector
to
the
menu
item
of
your
choice,
either
FREQUENCY(Hz),
DUTY
CYCLE,
PULSE
WIDTH,
or
PERIOD,
and
then
press
the
OK
key.
3.
Insert
the
black
lead
banana
plug
into
the
negative
COM
jack
and
the
red
test
lead
banana
plug
into
the
positive
Hz
jack.
4.
Touch
the
test
probe
tips
to
the
circuit
under
test.
5.
Read
the
measurement
on
the
display.
