
23.04.2010
This devi
•
Prote
e.g.
•
circui
o
o
f
This devi
• Volta
• meas
behin
• meas
III /
bus b
• Meas
mete
envir
or cir
5. Pol
IEC 6101
protective
more prot
certain en
properties
the device
Pollution
de
ree 1
Pollution
degree 2
Pollution
degree 3
Pollution
degree 4
Warning:
This devic
This impli
can occur
e is suitable fo
ted electronic cir
lectronics circuits
s which are direc
easurements on
ains by means o
ono-phase appli
ormal domestic e
part from a CAT I
ousehold applian
rom a distribution
e is NOT suitab
es above 600V
rements in/on lo
d meter box)
rements on (fixe
AT IV-environme
rs, low-voltage d
rements on distri
boxes and equip
nment e.g. circui
uits using under
This device is onl
environments.
lution degr
-1 specifies differ
measures are ne
ction, and the pr
ironment depend
. The pollution de
may be used.
No pollution or
has no influenc
Only noncondu
conductivity ca
office environm
Conductive poll
becomes condu
(industrial envir
but not in conta
The pollution g
dust or by rain
environments
articles occur
was designed in
s that certain res
within the enviro
DVM89
6
measurements
uits which are no
control signals,
ly connected to
mono-phase appli
a plug
nces and circuits
nvironment, provi
II- or 20m apart
es, portable tools
board …
le for:
-voltage distribu
) mono- or poly-
ts (e.g. mains o
istribution boards
bution equipment
ent/circuits outs
s in sheds, garde
round wiring e.g.
suitable for mea
e
nt types of pollu
essary to ensure
tection against t
s mainly on the i
ree rating of the
nly dry, noncond
onl
to be foun
tive pollution occ
sed by condensat
nts fall under thi
tion occurs, or d
tive due to cond
onments and envi
ct with
reci
itati
nerates persisten
r snow. (expose
here high humidit
accordance with
rictions in use ap
ment of use. Ref
up to 600V on:
directly connect
ircuits behind isol
ains power, but li
ances which are c
directly connecte
ded that the circu
rom a CAT IV-en
, light circuits at
tion boards (distri
phased appliance
tlets, electric ove
and circuit break
and outdoor inst
ide or remote fro
n houses and free
garden lighting,
surements up to
ion environments
afety. Harsher e
e pollution which
sulation and the
DVM indicates in
ctive pollution o
in hermeticall
s
rs. Occasionally,
ion is to be expec
cate
or
.
y nonconductive
nsation that is to
ronments expose
n
.
conductivity cau
outdoor environ
y levels or high c
N 61010-1 pollu
ly that are relate
r to the table abo
rev.
©Velleman
d to mains powe
ting transformer
mited to:
onnected to the
to the mains in
t is at least 10m
ironment. E.g.
ore than 10m
bution boards
and circuits in C
s, lighting circuit
rs).
llations including
the domestic
-standing garage
ool-pump...
00V in CAT II
for which differe
vironments requi
is to be found in
nclosure
hich environmen
curs. The pollutio
ealed enclosures
emporary
ed (home and
ollution occurs th
be expected
to outside air -
ed by conductive
ents and
ncentrations of fi
ion degree 2.
d to pollution whi
e.
1
nv
,
T
,
,
t
e
t
e
h
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