Velleman DVM840 - Manual (Page 5)

18.10.201
4. Ov
DMMs are
that might
induced in
The existin
CAT I
A C
cir
cir
CAT II
A C
mo
an
lea
ho
CAT III
A C
en
ap
me
cir
CAT IV
A C
en
No
ou
Warning:
This devic
600V. This
voltage pe
above.
T
e
5. Po
IEC 61010
protective
more prot
certain en
The pollut
may be us
0
When carrying out
always be aware th
damage the meter.
Do not replace inte
by identical ones w
test probes at your
Switch off the met
or fuses.
All modifications o
caused by user mo
vervoltage/ins
e categorized depen
t occur at the point
n a system, e.g. caus
ng categories accor
CAT I‐rated meter is
rcuits which are not
rcuits, control signa
CAT II‐rated meter i
ono‐phase applianc
d circuits in a norm
ast 10m apart from
ousehold appliances
CAT III‐rated meter
vironments, as wel
ppliances which are
easurements in or o
rcuits, electric ovens
CAT IV‐rated meter
vironments as well
ote that for all meas
utdoors (either over
e was designed in a
s implies that certai
eaks which can occu
This device is only su
environment.
llution degree
‐1 specifies differen
e measures are nece
tection, and the pro
vironment depends
tion degree rating o
sed.
DVM840
5
measurements on
hat high amplitude v
.
ernal parts yourself
with the same speci
r dealer.
er and remove test
of the device are for
odifications to the d
stallation cate
nding on the risk an
of test. Transients
sed by lightning stri
ding EN 61010‐1 ar
s suitable for measu
t directly connected
ls…
is suitable for meas
ces which are conne
mal domestic enviro
a CAT III‐ or 20m ap
s, portable tools…
is suitable for mea
l as for measureme
at least 10m apart
on distribution leve
s).
is suitable for mea
as on the primary s
surements on equip
rhead or undergrou
accordance with EN
n restrictions in use
ur within the enviro
uitable for measure
e
nt types of pollution
essary to ensure saf
otection against the
s mainly on the insu
of the DVM indicate
a TV set or switchin
voltage pulses at th
f. Replace damaged
fications. Order spa
t probes prior to rep
rbidden for safety re
evice is not covered
egory
nd severity of transi
are short‐lived burs
ike on a power line
re:
urements on protec
d to mains power, e
surements in CAT I‐e
ected to the mains b
nment, provided th
part from a CAT IV‐
surements in CAT I‐
ents on (fixed) mono
from of a CAT IV‐en
l equipment (fuse b
suring in CAT I‐, CA
supply level.
pment for which the
nd) a CAT IV meter
61010‐1 installatio
e apply that are rela
onment of use. Refe
ements up to 600V
n environments, for
fety. Harsher enviro
e pollution which is
ulation and the enc
es in which environm
©Velleman n
ng power circuits,
e test points might
d or lost accessories
are accessories e.g.
placing the battery
easons. Damage
d by the warranty.
ent overvoltage
sts of energy
.
cted electronic
e.g. electronics
environments and
by means of a plug
hat the circuit is at
environment. E.g.
‐ and CAT II‐
o‐ or poly‐phased
nvironment, and fo
boxes, lighting
T II‐ and CAT III‐
e supply cables run
must be used.
on category CAT III
ated to voltages and
er to the table
in a CAT III
r which different
onments require
to be found in a
losure properties.
ment the device
nv
s
r
d