Velleman DVM1100 - Manual (Page 5)

22.06.20
4. Ov
DMMs ar
occur at
caused b
The exis
CAT I
CAT II
CAT III
CAT IV
Warning
This dev
II 1000V
voltage p
This dev
• Prote
circu
• circu
o me
plu
o mo
env
fro
tha
This dev
• meas
• meas
envir
distr
This dev
• Volta
• Meas
equip
gard
light
5. Po
IEC 610
measure
protectio
the insul
which en
010
vervoltage
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
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 which are d
easurements o
ug
ono-phase app
vironment, pro
om a CAT IV-en
an 10m from a
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 env
llution deg
10-1 specifies
es are necessar
on against the
lation and the
nvironment the
e/installat
depending on
est. Transients
rike on a powe
s according EN
meter is suita
ly connected to
d meter is suita
ces which are
stic environme
part from a CAT
ed meter is suit
measurements
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 which
gnals, circuits b
directly connec
n mono-phase
liances and cir
ovided that the
nvironment. E.
distribution bo
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...
only suitable f
vironments.
gree
different types
ry to ensure sa
pollution which
enclosure prop
e device may b
DVM11
5
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
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
h are not direc
behind isolating
cted to mains p
appliances wh
rcuits directly c
e circuit is at le
g. household a
oard …
rements up to
distribution bo
or poly-phased
s, electric oven
eakers).
uipment and o
mote from the
garages , or c
for measureme
s of pollution e
afety. Harsher
h is to be foun
perties. The po
be used.
00
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
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 on:
ctly connected
g transformer…
power, but limi
hich are connec
connected to th
east 10m apart
appliances, por
o 600V:
oards (distribu
d appliances an
ns, lighting circ
outdoor installa
domestic envir
circuits using u
ents up to 600
nvironments, f
environments
d in a certain e
ollution degree
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
measurements
s, electric oven
, CAT II- and C
the supply cab
be used.
tion category C
are related to v
fer to the table
to mains powe
…
ted to:
cted to the ma
he mains in a n
t from a CAT II
rtable tools, lig
tion boards be
nd circuits exc
uits, bus bars,
ations including
ronment e.g. c
underground w
0V in CAT III
for which differ
require more p
environment de
rating of the D
Rev
©Vellema
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
in or on
s).
CAT III-
bles run outdoo
CAT III 600V /
voltages and
e above.
er, e.g. electron
ins by means o
normal domest
I- or 20m apa
ht circuits at m
ehind meter bo
ept in CAT IV-
low-voltage
g meter boxes
ircuits in sheds
iring e.g. garde
and up to 100
rent protective
protection, and
epends mainly
DVM indicates i
v. 01
n nv
g.
ich
-
n a
CAT
ools…
nts,
at
ors
CAT
nics
of a
ic
rt
more
x)
and
s,
en
00V
d the
y on
in