Velleman DVM831 - Manual (Page 5)

31.03.2010
Do no
Do no
Do no
circui
When
measu
measu
When
circuit
points
Do n
acces
acces
Switc
batte
All m
Dama
the w
4. Overvolt
DMMs are cate
overvoltage tha
bursts of energ
line.
The existing ca
CAT I
A CAT I
circuits
circuits,
CAT
II
A CAT I
environ
mains b
provide
apart fr
tools…
CAT
III
A CAT I
environ
phased
environ
(fuse bo
CAT
IV
A CAT I
CAT III-
Note th
run outd
used.
Warning:
This device wa
CAT II 500V. T
ot measure circuits th
ot measure current in
ot conduct resistance,
ts.
measuring currents u
urement followed by a
urements.
carrying out measure
ts, always be aware th
s might damage the m
ot replace internal pa
ssories by identical on
ssories e.g. test probe
ch off the meter and re
ry or fuses.
odifications of the dev
age caused by user m
warranty.
tage/installation
egorized depending on
at might occur at the
gy induced in a system
ategories according EN
-rated meter is suitab
which are not directly
, control signals…
I-rated meter is suita
ments and mono-pha
by means of a plug an
d that the circuit is at
rom a CAT IV-environm
II-rated meter is suita
ments, as well as for
appliances which are
ment, and for measur
oxes, lighting circuits,
V-rated meter is suita
-environments as wel
at for all measuremen
doors (either overhea
s designed in accorda
This implies that certa
DVM831
5
at may contain voltag
circuits with voltages
diode- or continuity m
up to 10A, max. 10s c
a 15 minutes break be
ements on a TV set or
hat high amplitude vo
meter.
arts yourself. Replace
es with the same spe
es at your dealer.
emove test probes pr
vice are forbidden for
odifications to the dev
n category
n the risk and severity
point of test. Transien
m, e.g. caused by ligh
N 61010-1 are:
ble for measurements
y connected to mains
ble for measurements
se appliances which a
d circuits in a normal
t least 10m apart from
ment. E.g. household
able for measurement
measurements on (fix
at least 10m apart fr
rements in or on distr
electric ovens).
able for measuring in
l as on the primary su
nts on equipment for w
d or underground) a C
ance with EN 61010-1
in restrictions in use a
©Velleman nv
ges > 500V
s > 250V
measurements on live
continuous
etween 2
r switching power
oltage pulses at the te
damaged or lost
cifications. Order spar
ior to replacing the
safety reasons.
vice is not covered by
y of transient
nts are short-lived
tning strike on a powe
on protected electron
power, e.g. electronic
s in CAT I-
are connected to the
domestic environmen
m a CAT III- or 20m
appliances, portable
ts in CAT I- and CAT I
xed) mono- or poly-
om of a CAT IV-
ribution level equipme
CAT I-, CAT II- and
upply level.
which the supply cabl
CAT IV meter must b
installation category
apply that are related
v
e
st
re
y
er
nic
cs
nt,
II-
ent
es
be