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
