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CAT I
CAT II
CAT III
11
Remark:
Keep the
Protect th
Avoid col
cold to a
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This is a
instrume
§4 Overv
Pollution
moisture,
Pollution
Before ea
fingers b
touch fre
Make sur
test circu
Risk of e
circuits. U
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Do not m
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Max. mea
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aware tha
meter.
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r
identical
at your d
Switch o
All modif
user mod
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re categorized
the point of te
by lightning str
ting categories
A CAT I-rated
are not directl
A CAT II-rated
phase applian
normal domes
III- or 20m ap
A CAT III-rate
as well as for
:
refer to the w
device away f
his device from
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void condensat
an installation
ent. Never
us
voltage /inst
degree 2-devi
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n degree
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ach use, make
behind the prot
ee terminals wh
re the meter is
uit.
electric shock
Use extreme ca
measure circuit
measure curren
onduct resistan
erform low imp
asuring time is
rrying out mea
at high amplitu
replace interna
ones with the
dealer.
ff the meter an
fications of the
difications to th
e/installat
depending on
est. Transients
rike on a powe
s according EN
meter is suita
ly connected to
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stic environme
part from a CAT
ed meter is suit
measurements
DVM3
4
warning on the
from children a
m shocks and a
rge temperatu
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tion and measu
n category CA
se this equipme
tallation categ
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d dripping liqui
e sure the test
tective edges o
hen the meter
s in the approp
k during oper
aution when m
s that may con
nt in circuits wi
nce, diode or c
pedance measu
s 3s.
asurements on
ude voltage pu
al parts yoursel
same specifica
nd remove test
e device are for
he device is no
ion catego
the risk and se
are short-lived
r line.
61010-1 are:
ble for measur
o mains power
able for measu
connected to t
nt, provided th
T IV-environm
table for meas
s on (fixed) mo
3218
back of the m
and unauthoris
buse. Avoid br
re fluctuations
ched off until it
uring errors.
AT III 600V /
ent in a higher
gory.
use only. Keep
ids. Not for ind
probes are in g
of the test prob
is connected t
priate measurin
ation.
Be very
measuring volta
ntain voltages
th voltages >
continuity meas
urements on vo
a TV set or sw
lses at the tes
lf. Replace dam
ations. Order s
t probes prior t
rbidden for safe
ot covered by t
ory
everity of trans
d bursts of ene
rements on pro
, e.g. electroni
urements in CA
the mains by m
hat the circuit i
ent. E.g. house
urements in CA
ono- or poly-ph
eter
ed users.
rute force when
. When the un
t has reached r
CAT II 1000
category than
p this device aw
dustrial use.
Re
good condition
bes while meas
to a circuit.
ng range before
y careful when
ages higher tha
> 1000V
250V
surements on
oltages higher
witching power
t points might
maged or lost a
spare accessori
to replacing th
ety reasons. D
he warranty.
sient overvolta
ergy induced in
otected electro
ics circuits, con
AT I-environme
means of a plug
s at least 10m
ehold applianc
AT I- and CAT
hased applianc
©Vellema
n operating.
it is moved fro
room temperat
V measuring
n indicated. Ref
way from rain,
efer to §5
. Always place
suring!
Never
e connecting it
measuring live
an 60Vdc or 30
live circuits.
than 250V CA
circuits, alway
damage the
accessories by
ies e.g. test pr
e battery or fu
amage caused
age that might
n a system, e.g
nic circuits wh
ntrol signals…
ents and mono-
g and circuits in
apart from a C
es, portable to
II-environmen
ces which are a
an nv
om a
ture.
fer to
,
your
t to a
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T II.
ys be
robes
uses.
d by
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ich
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CAT
ools…
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