13
Auto Range Digital Multimeter - 1000V DC/750V AC
5. M A I N T E N A N C E
General Maintenance and Cleaning
T
To
o a
av
vo
oiid
d e
elle
ec
cttrriic
ca
all s
sh
ho
oc
ck
k o
orr d
da
am
ma
ag
ge
e tto
o tth
he
e m
mu
ullttiim
me
ette
err,, d
do
o n
no
ott g
ge
ett
w
wa
atte
err iin
ns
siid
de
e tth
he
e c
ca
as
se
e.. R
Re
em
mo
ov
ve
e tth
he
e tte
es
stt lle
ea
ad
ds
s a
an
nd
d a
an
nyy iin
np
pu
utt s
siig
gn
na
alls
s
b
be
effo
orre
e o
op
pe
en
niin
ng
g tth
he
e c
ca
as
se
e..
Cleaning the multimeter:
• Wipe the case with a soft damp (not wet) cloth and mild detergent.
• DO NOT use abrasives or solvents.
• Dirt or moisture in the terminals can affect readings.
• Cleaning the terminals:
• Turn the meter off and remove all test leads.
• Shake out any dirt that may have gathered in the terminals.
• Soak a clean swab or cotton bud with a cleaning and oiling agent (such as WD-40).
• Work the swab/bud around in each terminal until you are happy there are clean.
The oiling agent insulates the terminals from moisture-related contamination.
B
Be
effo
orre
e rre
ep
plla
ac
ciin
ng
g tth
he
e b
ba
atttte
erryy a
an
nd
d ffu
us
se
es
s,, d
diis
sc
co
on
nn
ne
ec
ctt tte
es
stt lle
ea
ad
ds
s ffrro
om
m
a
an
nyy c
ciirrc
cu
uiitt u
un
nd
de
err tte
es
stt,, ttu
urrn
n tth
he
e m
mu
ullttiim
me
ette
err ‘‘O
OF
FF
F’’ a
an
nd
d rre
em
mo
ov
ve
e tte
es
stt
lle
ea
ad
ds
s ffrro
om
m tth
he
e iin
np
pu
utt tte
errm
miin
na
alls
s.. T
To
o p
prre
ev
ve
en
ntt d
da
am
ma
ag
ge
e tto
o tth
he
e m
me
ette
err o
orr
p
pe
errs
so
on
na
all iin
njju
urryy,, a
allw
wa
ayys
s rre
ep
plla
ac
ce
e tth
he
e b
ba
atttte
erryy o
orr ffu
us
se
e w
wiitth
h s
sp
pe
ec
ciiffiie
ed
d rra
attiin
ng
g..
Battery Replacement
When the battery voltage drops below a usable operation range the symbol will
appear on the LCD display, this indicates that the battery will need replacing. To do
this follow these steps.
• Set the meter to ‘O
OF
FF
F’ state.
• Disconnect test leads from any input terminals.
• Use the appropriate screwdriver to unscrew the secured back cover. This will
expose the batteries.
• Replace the battery with 3 new 1.5V batteries (AAA).
• Replace the battery cover and screw securely back into place.
• The multimeter should new be fully functional.
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