Velleman DVM3218 - Manual (Page 5)

19.01.201
CAT IV
Warning
This dev
II 1000V
voltage p
This dev
• Prote
circu
• circu
o m
p
o m
e
f
m
This dev
• meas
• meas
envir
distr
This dev
• Volta
• Meas
equip
gard
light
5. Po
IEC 610
measure
protectio
the insul
which en
Pollution
degree 1
Pollution
degree 2
Pollution
degree 3
Pollution
degree 4
Warning
This dev
certain r
environm
11
least 10m apa
distribution lev
A CAT IV-rate
environments
Note that for a
(either overhe
g:
vice was design
V. This implies
peaks which ca
vice is suitab
ected electroni
uits, control sig
uits that are dir
measurements
plug
mono-phase ap
environment, p
from a CAT IV-
more than 10m
vice is suitab
surements in/o
surements on
ronments (e.g.
ibution boards
vice is NOT su
ages above 100
surements on d
pment/circuits
en houses and
ing, pool-pump
This device is
in CAT II.
llution deg
10-1 specifies
es are necessar
on against the
lation and the
nvironment the
n
1
No pollutio
(only to be
n
2
Only nonco
condensati
category).
n
3
Conductive
conductive
environmen
n
4
The pollutio
snow. (exp
or high con
g:
vice was design
restrictions in u
ment of use. Re
art from of a CA
vel equipment
d meter is suit
as well as on t
all measureme
ead or undergr
ned in accordan
that certain re
an occur within
ble for measur
c circuits that
gnals, circuits b
rectly connecte
on mono-phas
ppliances and c
provided that th
environment.
m from a distrib
ble for measur
on low-voltage
(fixed) mono-
. mains outlets
and circuit bre
uitable for:
00V
distribution eq
outside or rem
d free-standing
p...
s only suitable
gree
different types
ry to ensure sa
pollution which
enclosure prop
e device may b
n or only dry,
found in herm
onductive pollu
on is to be exp
e pollution occu
due to conden
nts exposed to
on generates p
posed outdoor e
ncentrations of
ned in accordan
use apply that
efer to the tab
DVM3
5
AT IV-environm
(fuse boxes, l
table for measu
the primary su
ents on equipm
ound) a CAT IV
nce with EN 61
estrictions in us
n the environm
rements up to
are not directly
behind isolating
ed to mains po
se appliances t
circuits directly
he circuit is at
E.g. household
bution board …
rements up to
distribution bo
or poly-phased
s, electric oven
eakers).
uipment and o
mote from the
garages , or c
for measurem
s of pollution e
afety. Harsher
h is to be foun
perties. The po
be used.
nonconductive
metically sealed
tion occurs. Oc
pected (home a
urs, or dry non
nsation that is
o outside air - b
persistent cond
environments
fine particles o
nce with EN 61
are related to
le above.
3218
ment, and for m
ighting circuits
uring in CAT I-
upply level.
ment for which t
V meter must
1010-1 installat
se apply that a
ment of use. Re
o 1000V:
y connected to
g transformer…
wer, but limite
that are connec
y connected to
least 10m apa
d appliances, p
o 600V:
oards (distribu
d appliances an
ns, lighting circ
outdoor installa
domestic envir
circuits using u
ments up to 60
nvironments, f
environments
d in a certain e
ollution degree
e pollution occu
d enclosures).
ccasionally, tem
and office envi
conductive pol
to be expected
but not in cont
ductivity caused
and environme
occur)
1010-1 pollutio
pollution which
measurements
s, electric oven
, CAT II- and C
the supply cab
be used.
tion category C
are related to v
fer to the table
o mains power,
…
ed to:
cted to the ma
the mains in a
art from a CAT
ortable tools, l
tion boards be
nd circuits exc
uits, bus bars,
ations including
ronment e.g. c
underground w
00V in CAT III
for which differ
require more p
environment de
rating of the D
urs. The polluti
mporary condu
ronments fall u
llution occurs t
d (industrial en
act with precip
d by conductiv
ents where hig
on degree 2.
h can occur wit
©Vellema
in or on
s).
CAT III-
bles run outdoo
CAT III 600V /
voltages and
e above.
, e.g. electronic
ains by means
a normal dome
III- or 20m ap
light circuits at
ehind meter bo
ept in CAT IV-
low-voltage
g meter boxes
ircuits in sheds
iring e.g. garde
I and up to 10
rent protective
protection, and
epends mainly
DVM indicates i
on has no influ
uctivity caused
under this
that becomes
nvironments an
pitation).
e dust or by ra
h humidity lev
This implies th
thin the
an nv
ors
CAT
cs
of a
estic
part
t
x)
and
s,
en
000V
d the
y on
in
uence
by
nd
ain or
els
hat