Velleman DVM400 Serie Manual Del Usuario página 6

circuit. c
Switch off the met S
or fuses. o
W When carrying out
a lways be aware th
might damage the m
4. Ove ervoltage/ins
DMMs are c categorized depend
that might occur at the point
induced in a a system, e.g. cau
The existing g categories accor
A CAT I-rated mete
CAT I ci ircuits that are not
ci ircuits, control sign
A CAT II-rated met
a nd mono-phase ap
CAT II a plug and circuits
ci ircuit is at least 10
e nvironment. E.g. h
A CAT III-rated me
e nvironments, as w
CAT III p hased appliances w
e nvironment, and f
(l ow-voltage distrib
A CAT IV-rated met
II II-environments as
CAT IV N ote that for all me
ru un outdoors (eithe
u sed.
Warning:
This device was designed in a
IV 600V / C CAT III 1000V. Thi
related to v voltages and voltag
use. Refer t to the table above
This devic e is suitable for
•
Protected d electronic circuits
electronic cs circuits, control
•
circuits th hat are directly co
o measu rements on mono
means s of a plug
mono- phase appliances
o
domes stic environment, p
CAT IV V-environment. E.g
more t than 10m from a d
• measurem ments in/on low-v
meter bo ox)
• measurem ments on (fixed) m
CAT IV-e nvironments (e.g.
bars, low w-voltage distributi
27.10.2010
DVM4x0
er and remove tes
measurements on
hat high amplitude
meter.
stallation cat
ding on the risk an
of test. Transients
used by lightning s
rding EN 61010-1
er is suitable for m
t directly connecte
nals...
er is suitable for m
ppliances that are
in a normal domes
0m apart from a CA
household applianc
ter is suitable for
well as for measure
which are at least
for measurements
bution boards, ligh
ter is suitable for m
s well as on the pr
easurements on eq
er overhead or und
accordance with EN
s implies that cert
ge peaks which ca
e.
measurements u
s that are not dire
signals, circuits b
nnected to mains
-phase appliances
and circuits direct
provided that the c
g. household appli
distribution board ...
voltage distribution
mono- or poly-pha
mains outlets, ele
ion boards and circ
6
0
st probes prior to r
n a TV set or switc
e voltage pulses at
tegory
nd severity of tran
s are short-lived b
strike on a power l
are:
measurements on p
ed to mains power
measurements in C
connected to the
stic environment,
AT III- or 20m apa
ces, portable tools
measurements in
ements on (fixed)
10m apart from o
in or on distributio
ting circuits, elect
measuring in CAT
rimary supply leve
quipment for which
derground) a CAT
N 61010-1 installa
tain restrictions in
n occur within the
up to 1000V:
ectly connected to
behind isolating tra
power, but limited
s that are connecte
ly connected to th
circuit is at least 1
ances, portable to
...
n boards (distribut
ased appliances an
ectric ovens, lighti
cuit breakers).
replacing the batte
hing power circuit
t the test points
nsient overvoltage
bursts of energy
ine.
protected electroni
r, e.g. electronics
CAT I-environment
mains by means o
provided that the
art from a CAT IV-
s...
CAT I- and CAT II
mono- or poly-
of a CAT IV-
on level equipmen
ric ovens).
I-, CAT II- and CA
el.
h the supply cable
IV meter must be
ation category CAT
use apply that are
e environment of
mains power, e.g.
ansformer...
d to:
ed to the mains by
he mains in a norm
0m apart from a
ools, light circuits a
ion boards behind
nd circuits except i
ing circuits, bus
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